CN110289371B - Light-emitting structure, display panel and display device - Google Patents
Light-emitting structure, display panel and display device Download PDFInfo
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- CN110289371B CN110289371B CN201910579348.3A CN201910579348A CN110289371B CN 110289371 B CN110289371 B CN 110289371B CN 201910579348 A CN201910579348 A CN 201910579348A CN 110289371 B CN110289371 B CN 110289371B
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- 239000004038 photonic crystal Substances 0.000 claims abstract description 94
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- 238000002360 preparation method Methods 0.000 abstract description 4
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- 230000000694 effects Effects 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
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- 230000005428 wave function Effects 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/19—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on variable-reflection or variable-refraction elements not provided for in groups G02F1/015 - G02F1/169
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/15—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission
- H01L27/153—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars
- H01L27/156—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars two-dimensional arrays
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
- H01L33/60—Reflective elements
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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
- H10K50/856—Arrangements for extracting light from the devices comprising reflective 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
- H10K59/10—OLED displays
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- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
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- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The embodiment of the invention provides a light-emitting structure, a display panel and a display device, wherein the light-emitting structure comprises: the adjustable photonic crystal structure is provided with a first surface and a second surface which are oppositely arranged; the first support structure is positioned on the first surface and is provided with a first support inclined plane which forms a first preset angle with the first surface and a light-emitting plane which is far away from one side of the adjustable photonic crystal structure and is parallel to the first surface; and the white electroluminescent device is positioned on the first support inclined plane, and the light emitting surface of the white electroluminescent device faces the first support inclined plane. The invention uses the white light electroluminescent device as the backlight source, and does not need to set a polarized light structure, thereby simplifying the preparation process, and meanwhile, the adjustable photonic crystal structure selectively reflects the light emitted by the white electroluminescent device, and displays the light by utilizing the reflected light, thereby improving the utilization rate of the light.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a light emitting structure, a display panel and a display device.
Background
The discovery of the photonic crystal provides a great assistance for the development of the optical and display field, wherein the controllable photonic crystal is a great force, and the photonic crystal is filled with micromolecule liquid crystal to manufacture a solid photonic crystal or a hydrocolloid photonic crystal (the photonic band gap is regulated and controlled by using solvent content and the like), so that the photonic band gap can be regulated, and further, the selective output of continuous spectrum is realized.
In the related display technology, the adjustable photonic crystal is utilized to filter light in the liquid crystal display panel, specifically, the backlight module emits white light, and the light corresponding to gray scales and corresponding colors is emitted for display through the liquid crystal layer and the adjustable photonic crystal layer respectively, wherein the adjustable photonic crystal layer plays a role of a color film layer, the polarization of light is still required to be carried out by the polarizing layer, and the transmittance loss is large.
Disclosure of Invention
In view of the above, embodiments of the present invention provide a light emitting structure, a display panel and a display device, so as to solve the problem of low light utilization rate of the display panel in the related art.
In a first aspect, an embodiment of the present invention provides a light emitting structure, including:
a tunable photonic crystal structure having a first surface and a second surface disposed opposite one another;
the first support structure is positioned on the first surface and is provided with a first support inclined plane which forms a first preset angle with the first surface and a light-emitting plane which is far away from one side of the adjustable photonic crystal structure and is parallel to the first surface;
the white electroluminescent device is positioned on the first supporting inclined plane, and a light emitting surface of the white electroluminescent device faces the first supporting inclined plane;
the adjustable photonic crystal structure is configured to reflect a preset waveband in light emitted by the white electroluminescent device to the light emitting surface.
In a possible implementation manner, in the light emitting structure provided in the embodiment of the present invention, the light emitting structure further includes: the substrate comprises a substrate base plate and a second supporting structure, wherein the second supporting structure is positioned between the substrate base plate and the adjustable photonic crystal structure;
and one side of the second support structure, which is far away from the substrate base plate, is provided with a second support inclined plane, the second support inclined plane and the substrate base plate form a second preset angle, and the second support inclined plane is in contact with the second surface.
In a possible implementation manner, in the light emitting structure provided in the embodiment of the present invention, the first supporting slope and the second supporting slope have the same inclination direction, and the second preset angle is equal to the first preset angle.
In a possible implementation manner, in the light emitting structure provided by the embodiment of the present invention, the controllable photonic crystal structure includes: the first electrode, the adjustable photonic crystal layer and the second electrode are sequentially positioned on the substrate base plate;
the tunable photonic crystal layer is configured to reflect light of a predetermined wavelength band under the driving of the first and second electrodes.
In a possible implementation manner, in the light emitting structure provided in the embodiment of the present invention, the light emitting structure further includes: the third electrode is positioned on one side of the light emergent surface of the first support structure, the fourth electrode is positioned on the first surface, and the third electrode and the fourth electrode are transparent electrodes;
the third electrode is electrically connected with the anode of the white electroluminescent device, and the fourth electrode is electrically connected with the cathode of the white electroluminescent device.
In a second aspect, an embodiment of the present invention further provides a display panel, which includes a plurality of light emitting structures arranged closely as in any embodiment of the first aspect, and the controllable photonic crystal structures in all the light emitting structures are integrally disposed.
In a possible implementation manner, in the display panel provided in the embodiment of the invention, all the tunable photonic crystal structures are located on the second supporting slope of the same second supporting structure.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the second electrode and the fourth electrode are the same electrode and are disposed on the whole surface.
In a possible implementation manner, in a display panel provided in an embodiment of the present invention, the controllable photonic crystal layer includes: red, green and blue adjustable photonic crystals;
wherein the red-controllable photonic crystal is configured to reflect a red band portion of light emitted by the white electroluminescent device, the green-controllable photonic crystal is configured to reflect a green band portion of light emitted by the white electroluminescent device, and the blue-controllable photonic crystal is configured to reflect a blue band portion of light emitted by the white electroluminescent device.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the display panel further includes: and the packaging protective layer is positioned on one side of the white electroluminescent device, which is far away from the adjustable photonic crystal structure, and covers all the white electroluminescent devices.
In a third aspect, an embodiment of the present invention further provides a display device, including the display panel according to any one of the embodiments of the second aspect.
The invention has the beneficial effects that:
the embodiment of the invention provides a light-emitting structure, a display panel and a display device, wherein the light-emitting structure comprises: a tunable photonic crystal structure having a first surface and a second surface disposed opposite one another; the first support structure is positioned on the first surface and is provided with a first support inclined plane which forms a first preset angle with the first surface and a light-emitting plane which is far away from one side of the adjustable photonic crystal structure and is parallel to the first surface; the white electroluminescent device is positioned on the first supporting inclined plane, and a light emitting surface of the white electroluminescent device faces the first supporting inclined plane; the adjustable photonic crystal structure is configured to reflect a preset waveband in light emitted by the white electroluminescent device to the light emitting surface. The invention uses the white light electroluminescent device as the backlight source, and does not need to set a polarized light structure, thereby simplifying the preparation process, and meanwhile, the adjustable photonic crystal structure selectively reflects the light emitted by the white electroluminescent device, and displays the light by utilizing the reflected light, thereby improving the utilization rate of the light.
Drawings
Fig. 1 is a schematic structural diagram of a light emitting structure according to an embodiment of the present invention;
fig. 2 is a second schematic structural diagram of a light emitting structure according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of a light emitting structure according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 5 is a second schematic structural diagram of a display panel according to an embodiment of the invention.
Detailed Description
The embodiment of the invention provides a light-emitting structure, a display panel and a display device, aiming at the problem that the display panel in the related art is low in light utilization rate. In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The shapes and sizes of the various elements in the drawings are not to scale and are merely intended to illustrate the invention.
An embodiment of the present invention provides a light emitting structure, as shown in fig. 1 and 3, including:
the controllable photonic crystal structure 1, wherein the controllable photonic crystal structure 1 has a first surface a1 and a second surface a2 which are oppositely arranged;
the first supporting structure 2 is located on the first surface a1, the first supporting structure 2 has a first supporting inclined plane b1 forming a first predetermined angle r with the first surface a1, and a light emitting plane b2 away from one side of the adjustable photonic crystal structure 1 and parallel to the first surface a 1;
a white electroluminescent device 3, the white electroluminescent device 3 being located on the first supporting inclined plane b1, and a light emitting surface of the white electroluminescent device 3 facing the first supporting inclined plane b 1;
the tunable photonic crystal structure 1 is configured to reflect a predetermined wavelength band of the light emitted by the white electroluminescent device 3 to the light exit surface b 2.
Specifically, in the light emitting structure provided in the embodiment of the present invention, the packaged white light electroluminescent device is used as a backlight source, and a polarization structure is not required to be provided, so that the manufacturing process is simplified, and meanwhile, the white electroluminescent device is disposed on the first supporting inclined plane through the arrangement of the first supporting inclined plane of the first supporting structure, light emitted by the white electroluminescent device is irradiated on the adjustable photonic crystal structure, and the adjustable photonic crystal structure selectively reflects light emitted by the white electroluminescent device, that is, only light within a preset waveband is reflected, and the reflected light is used for displaying, and other film layers are not required to pass through, so that the light utilization rate is improved.
It should be noted that, since the light reflected by the tunable photonic crystal structure is not necessarily emitted perpendicularly to the light emitting surface of the first supporting structure, the light emitting surface of the first supporting structure is a surface away from the tunable photonic crystal structure and parallel to the first surface of the tunable photonic crystal structure.
The Photonic Crystal (Photonic Crystal) is an artificial microstructure formed by periodically arranging media with different refractive indexes. Photonic crystals are photonic band gap materials, and from the viewpoint of material structure, photonic crystals are artificially designed and manufactured crystals with periodic dielectric structures on the optical scale. Similar to the modulation of an electronic wave function by a semiconductor lattice, photonic band gap materials are capable of modulating electromagnetic waves having a corresponding wavelength, which are modulated due to the presence of bragg scattering as they propagate in the photonic band gap material, the electromagnetic wave energy forming a band structure. A band gap, i.e., a photonic band gap, occurs between the energy bands. Photons with energies within the photonic bandgap cannot enter the crystal and will reflect off. The light band gap can be regulated and controlled in different modes, and light with different wave bands can be reflected. Specifically, the adjustment and control of the photonic crystal forbidden band may be controlled by electricity, or driven by heat, light, etc., where the adjustment and control is performed according to the matching of the adjustable and controllable photonic crystal and the liquid crystal, and the adjustment and control method is not specifically limited herein.
It should be noted that the first supporting structure is a transparent supporting structure, and can allow light reflected by the controllable photonic crystal structure to pass through, and specifically, a material such as a low refractive index resin may be used to reduce the change of the optical path, and of course, other transparent materials may also be used, which is not limited herein.
Optionally, in the light emitting structure provided in the embodiment of the present invention, as shown in fig. 2 and fig. 3, the light emitting structure further includes: the adjustable photonic crystal structure comprises a substrate base plate 6 and a second supporting structure 7, wherein the second supporting structure 7 is positioned between the substrate base plate 6 and the adjustable photonic crystal structure 1;
the side of the second supporting structure 7 facing away from the substrate base plate 6 has a second supporting inclined surface c1, the second supporting inclined surface c1 forms a second preset angle i with the substrate base plate 6, and the second supporting inclined surface c1 contacts with the second surface a 2.
Specifically, in the light emitting structure provided in the embodiment of the present invention, as shown in fig. 2 and fig. 3, the second supporting structure 7 is located on the e1 surface of the substrate base plate, the second supporting inclined surface c1 of the second supporting structure 7 and the e1 surface of the substrate base plate form a second preset angle i, the second supporting inclined surface c1 and the first supporting inclined surface b1 form a first preset angle r, and the angle of the outgoing light can be controlled by designing the first preset angle r and the second preset angle i, as shown in fig. 3, the outgoing light can be emitted perpendicular to the d1 surface of the package protection layer.
Optionally, in the light emitting structure provided in the embodiment of the present invention, as shown in fig. 3, the first supporting slope b1 has a same inclination direction as the second supporting slope c1, and the second preset angle i is equal to the first preset angle r.
Specifically, in the light emitting structure provided in the embodiment of the present invention, as shown in fig. 3, when the first preset angle r is equal to the second preset angle i, the reflected light makes an angle of 90 ° (or 90 ° with respect to the substrate) with respect to the d1 plane of the package protection layer, that is, the maximum light efficiency is obtained at the front viewing angle, and the viewing effect is the best.
The larger the second preset angle is, the smaller the occupation ratio of the white electroluminescent device in pixel display is, the higher the light extraction ratio is, and when the white electroluminescent device and the light extraction surface form an angle of 90 degrees, the minimum occupation ratio of the white electroluminescent device in pixel display is, so that the maximum light extraction rate can be obtained. However, as the second preset angle is increased, the thickness of the product is gradually increased, and the increase of the thickness of the product affects the light extraction rate and the process difficulty, so that the influence of the above factors needs to be comprehensively considered in the actual use process to design the product.
Optionally, in the light emitting structure provided in the embodiment of the present invention, as shown in fig. 2, the controllable photonic crystal structure 1 includes: a first electrode 11, an adjustable photonic crystal layer 12 and a second electrode 13 which are sequentially arranged on the substrate base plate 6;
the tunable photonic crystal layer 12 is configured to reflect light of a predetermined wavelength band driven by the first electrode 11 and the second electrode 13.
Specifically, in the light emitting structure provided in the embodiment of the present invention, when the controllable photonic crystal layer can regulate the forbidden band of the photonic crystal through the voltage, the first electrode and the second electrode may be respectively disposed on two sides of the controllable photonic crystal layer, and different voltages are applied to the first electrode and the second electrode to regulate light with different chromaticities.
Optionally, in the light emitting structure provided in the embodiment of the present invention, as shown in fig. 2, the light emitting structure further includes: the third electrode 4 is located on the light exit surface b2 side of the first supporting structure 2, and the fourth electrode 13 (which can be multiplexed with the second electrode 13) is located on the first surface a1, and the third electrode 4 and the fourth electrode 13 are transparent electrodes;
the third electrode 4 is electrically connected to the anode of the white electroluminescent device 3, and the fourth electrode 13 is electrically connected to the cathode of the white electroluminescent device 3.
Specifically, in the light emitting structure provided by the embodiment of the invention, the third electrode and the fourth electrode are used for driving the white electroluminescent device, and the white electroluminescent device is driven to display light with different brightness by applying different voltages to the third electrode and the fourth electrode.
Based on the same inventive concept, an embodiment of the present invention further provides a display panel, as shown in fig. 4, including a plurality of light emitting structures closely arranged as in any of the embodiments above, wherein the controllable photonic crystal structures 1 in all the light emitting structures are integrally disposed.
Wherein, the adjustable photonic crystal structure in all light emitting structures is an organic whole and sets up, the adjustable photonic crystal layer in the photonic crystal structure can be regulated and control is a structure as an organic whole to the finger, in order to realize the demonstration of different colours and need to apply different voltages, at least first electrode or second electrode difference are a body structure, preparation technology can be simplified in this kind of setting, can form the adjustable photonic crystal structure that is the array and arranges, through respectively controlling the band gap that can respectively regulate and control the photonic crystal structure, thereby send the light of different colours, each subpixel has been formed promptly, in order to be used for showing.
Alternatively, in the display panel provided in the embodiment of the invention, as shown in fig. 5, all the tunable photonic crystal structures 1 are located on the second supporting slopes of the same second supporting structure 7.
Specifically, in the display panel provided in the embodiment of the present invention, all the adjustable photonic crystal structures are disposed on the same second supporting inclined plane, so that the second preset angles between all the adjustable photonic crystal structures and the substrate are the same, and the display effects at different viewing angles can be obtained by designing the first preset angles of each region of the display panel, so as to meet the display requirements of different scenes.
If the positive viewing angle is optimally applied in some scenes, the first preset angle and the second preset angle are designed, the reflected light is emitted perpendicular to the light emitting surface, and certainly, the first preset angle and the second preset angle can be designed to meet the requirements and improve the display effect when the upward viewing angle or the downward viewing angle is the optimal viewing angle in some scenes.
Optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 5, the second electrode 13 and the fourth electrode 13 are the same electrode and are disposed on the whole surface.
The second electrode can be used as a common electrode of the adjustable photonic crystal structure, and the fourth electrode can be used as a common electrode of the white electroluminescent device, so that the two electrodes can be multiplexed, and the arrangement of the film layer is reduced.
Optionally, in the display panel provided in the embodiment of the present invention, the tunable photonic crystal layer includes: red, green and blue adjustable photonic crystals;
the red-controllable photonic crystal is configured to reflect a red wavelength band portion of light emitted by the white electroluminescent device, the green-controllable photonic crystal is configured to reflect a green wavelength band portion of light emitted by the white electroluminescent device, and the blue-controllable photonic crystal is configured to reflect a blue wavelength band portion of light emitted by the white electroluminescent device.
Specifically, in the display panel provided in the embodiment of the present invention, when the controllable transistor crystal layer controls the color reflected by the controllable transistor crystal layer through the voltage applied by the electrodes, the voltage may be applied by the first electrode and the second electrode to control the wavelength band corresponding to the light reflected by the controllable photonic crystal in each light emitting structure (for example, the wavelength band may be three colors, red/green/blue), and the wavelength band corresponding to the reflected light of each light emitting structure may be variable according to the difference of the applied voltage, for example, for the controllable photonic crystal in a certain light emitting structure, the first frame may reflect red light, the second frame may continuously reflect red light, or the second frame may continuously reflect green light through the voltage control.
It should be noted that the light reflected by the controllable photonic crystal is not limited to the three primary colors of red, green and blue, and the three primary colors are only one example, and it is within the scope of the patent to reflect light of other colors.
Optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 5, the display panel further includes: and the packaging protective layer 5 is positioned on one side of the white electroluminescent device 3, which is far away from the adjustable photonic crystal structure 1, and covers all the white electroluminescent devices 3.
The encapsulation protection layer may be an encapsulation protection resin, but may also be other encapsulation protection materials, and is not particularly limited herein.
Based on the same inventive concept, the embodiment of the invention further provides a display device, which comprises the display panel provided by any one of the embodiments.
The display device is suitable for various displays such as an Organic electroluminescent display, an inorganic electroluminescent display, an Active Matrix/Organic Light Emitting Diode (AMOLED) display, a micro inorganic electroluminescent device and the like.
The embodiment of the invention provides a light-emitting structure, a display panel and a display device, wherein the light-emitting structure comprises: a tunable photonic crystal structure having a first surface and a second surface disposed opposite one another; the first support structure is positioned on the first surface and is provided with a first support inclined plane which forms a first preset angle with the first surface and a light-emitting plane which is far away from one side of the adjustable photonic crystal structure and is parallel to the first surface; the white electroluminescent device is positioned on the first supporting inclined plane, and a light emitting surface of the white electroluminescent device faces the first supporting inclined plane; the adjustable photonic crystal structure is configured to reflect a preset waveband in light emitted by the white electroluminescent device to the light emitting surface. The invention uses the white light electroluminescent device as the backlight source, and does not need to set a polarized light structure, thereby simplifying the preparation process, and meanwhile, the adjustable photonic crystal structure selectively reflects the light emitted by the white electroluminescent device, and displays the light by utilizing the reflected light, thereby improving the utilization rate of the light.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (11)
1. A light emitting structure, comprising:
a tunable photonic crystal structure having a first surface and a second surface disposed opposite one another;
the first support structure is positioned on the first surface and is provided with a first support inclined plane which forms a first preset angle with the first surface and a light-emitting plane which is far away from one side of the adjustable photonic crystal structure and is parallel to the first surface;
the white electroluminescent device is positioned on the first supporting inclined plane, and a light emitting surface of the white electroluminescent device faces the first supporting inclined plane;
the adjustable photonic crystal structure is configured to reflect a preset waveband in light emitted by the white electroluminescent device to the light emitting surface.
2. The light emitting structure of claim 1, further comprising: the substrate comprises a substrate base plate and a second supporting structure, wherein the second supporting structure is positioned between the substrate base plate and the adjustable photonic crystal structure;
and one side of the second support structure, which is far away from the substrate base plate, is provided with a second support inclined plane, the second support inclined plane and the substrate base plate form a second preset angle, and the second support inclined plane is in contact with the second surface.
3. The light-emitting structure according to claim 2, wherein the first supporting slope and the second supporting slope have the same slope direction, and the second predetermined angle is equal to the first predetermined angle.
4. The light emitting structure of claim 2, wherein the tunable photonic crystal structure comprises: the first electrode, the adjustable photonic crystal layer and the second electrode are sequentially positioned on the substrate base plate;
the tunable photonic crystal layer is configured to reflect light of a predetermined wavelength band under the driving of the first and second electrodes.
5. The light emitting structure of claim 4, further comprising: the third electrode is positioned on one side of the light emergent surface of the first support structure, the fourth electrode is positioned on the first surface, and the third electrode and the fourth electrode are transparent electrodes;
the third electrode is electrically connected with the anode of the white electroluminescent device, and the fourth electrode is electrically connected with the cathode of the white electroluminescent device.
6. A display panel comprising a plurality of closely packed light emitting structures according to any of claims 1 to 5, wherein the photonic crystal layers in the tunable photonic crystal structures in all of the light emitting structures are integrally provided;
the first electrode and the second electrode in the adjustable photonic crystal structure in all the light-emitting structures are not integrally arranged at the same time.
7. The display panel of claim 6, wherein when the display panel includes a light emitting structure according to claim 5, all of the tunable photonic crystal structures are on the second support slope of the same second support structure.
8. The display panel according to claim 7, wherein the second electrode and the fourth electrode are the same electrode and are provided over the entire surface.
9. The display panel of any of claims 6 to 8, wherein the tunable photonic crystal layer comprises: red, green and blue adjustable photonic crystals;
wherein the red-controllable photonic crystal is configured to reflect a red band portion of light emitted by the white electroluminescent device, the green-controllable photonic crystal is configured to reflect a green band portion of light emitted by the white electroluminescent device, and the blue-controllable photonic crystal is configured to reflect a blue band portion of light emitted by the white electroluminescent device.
10. The display panel according to any one of claims 6 to 8, further comprising: and the packaging protective layer is positioned on one side of the white electroluminescent device, which is far away from the adjustable photonic crystal structure, and covers all the white electroluminescent devices.
11. A display device characterized by comprising the display panel according to any one of claims 6 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910579348.3A CN110289371B (en) | 2019-06-28 | 2019-06-28 | Light-emitting structure, display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910579348.3A CN110289371B (en) | 2019-06-28 | 2019-06-28 | Light-emitting structure, display panel and display device |
Publications (2)
| Publication Number | Publication Date |
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| CN110289371A CN110289371A (en) | 2019-09-27 |
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| CN114824042A (en) * | 2022-03-08 | 2022-07-29 | 上海天马微电子有限公司 | Display panel and display device |
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| CN102124405A (en) * | 2008-05-30 | 2011-07-13 | 欧帕鲁克斯有限公司 | Tunable Bragg stack |
| CN102955315A (en) * | 2011-08-24 | 2013-03-06 | 三星电子株式会社 | Color image panel, and apparatus and method of displaying color image using same |
| CN103235460A (en) * | 2013-04-08 | 2013-08-07 | 京东方科技集团股份有限公司 | Display device and manufacturing method thereof |
| CN107748469A (en) * | 2011-05-21 | 2018-03-02 | 伊英克公司 | Electro-optic displays |
| CN108123055A (en) * | 2016-11-30 | 2018-06-05 | 财团法人工业技术研究院 | light emitting device |
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| US7367691B2 (en) * | 2003-06-16 | 2008-05-06 | Industrial Technology Research Institute | Omnidirectional one-dimensional photonic crystal and light emitting device made from the same |
| US10559630B2 (en) * | 2017-12-21 | 2020-02-11 | X Development Llc | Light emitting devices featuring optical mode enhancement |
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| CN107748469A (en) * | 2011-05-21 | 2018-03-02 | 伊英克公司 | Electro-optic displays |
| CN102955315A (en) * | 2011-08-24 | 2013-03-06 | 三星电子株式会社 | Color image panel, and apparatus and method of displaying color image using same |
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