CN114361352A - Semiconductor device, display panel and device, optical storage device and method of using the same - Google Patents
Semiconductor device, display panel and device, optical storage device and method of using the same Download PDFInfo
- Publication number
- CN114361352A CN114361352A CN202111639834.3A CN202111639834A CN114361352A CN 114361352 A CN114361352 A CN 114361352A CN 202111639834 A CN202111639834 A CN 202111639834A CN 114361352 A CN114361352 A CN 114361352A
- Authority
- CN
- China
- Prior art keywords
- color
- light
- light emitting
- molecular
- different
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000003860 storage Methods 0.000 title claims abstract description 32
- 230000003287 optical effect Effects 0.000 title claims abstract description 29
- 239000004065 semiconductor Substances 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 110
- 239000002346 layers by function Substances 0.000 claims abstract description 42
- 239000000758 substrate Substances 0.000 claims abstract description 21
- 239000010410 layer Substances 0.000 claims description 37
- 238000001704 evaporation Methods 0.000 claims description 21
- 230000008020 evaporation Effects 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 19
- 150000001875 compounds Chemical class 0.000 claims description 10
- 125000000609 carbazolyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3NC12)* 0.000 claims description 9
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical group C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 7
- 239000003086 colorant Substances 0.000 description 26
- 238000004519 manufacturing process Methods 0.000 description 16
- 238000004020 luminiscence type Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 10
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- AFCIMSXHQSIHQW-UHFFFAOYSA-N [O].[P] Chemical group [O].[P] AFCIMSXHQSIHQW-UHFFFAOYSA-N 0.000 description 5
- 230000009471 action Effects 0.000 description 5
- 239000010409 thin film Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000021615 conjugation Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005281 excited state Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- -1 naphthalene compound Chemical group 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene-acid Natural products C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 125000005264 aryl amine group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 230000005525 hole transport Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 235000012736 patent blue V Nutrition 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Images
Classifications
-
- 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
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/10—Deposition of organic active material
- H10K71/16—Deposition of organic active material using physical vapour deposition [PVD], e.g. vacuum deposition or sputtering
- H10K71/166—Deposition of organic active material using physical vapour deposition [PVD], e.g. vacuum deposition or sputtering using selective deposition, e.g. using a mask
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The application provides a semiconductor device, a display panel and a device, an optical storage device and a using method thereof, wherein the optical storage device comprises a substrate, a first electrode, a functional layer and a second electrode which are arranged in a stacked mode, the functional layer at least comprises a light-emitting material with adjustable molecular configuration, and different molecular configurations correspond to at least two color intervals with different wavelengths. The luminescent material of the functional layer at least comprises at least one material with adjustable molecular configuration, different molecular configurations of the material correspond to at least two color intervals with different wavelengths, and the purpose that the different molecular configurations of the material correspond to at least two color intervals with different wavelengths is achieved.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a semiconductor device, a display panel, a display device, an optical storage device, and a method for using the same.
Background
With the rapid development of terminal devices, higher requirements are put on the display of the terminal devices. The current display technology field is mainly divided into Liquid Crystal Display (LCD) and Organic Light Emitting Display (OLED). The organic light emitting display is based on the fact that electrons and holes of organic materials are recombined to emit light rays to realize display of different colors. The organic light emitting device is a self-luminous device, and has the advantages of high response speed, high brightness, wide viewing angle, low power consumption and the like.
Currently, color display is generally realized by using red, green and blue light-emitting materials, but the manufacturing process is complicated and the manufacturing cost is high when three colors of light-emitting materials are manufactured in a display panel. That is, the current display panel has the problems of complicated manufacturing process and high manufacturing cost in the manufacturing process.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a semiconductor device, a display panel, a display device, an optical storage device and a method for using the same, which can simplify the manufacturing process of the display panel and reduce the manufacturing cost of the display panel.
The embodiment of the application provides a semiconductor device, which comprises a substrate, a first electrode, a functional layer and a second electrode which are arranged in a stacked mode, wherein the functional layer at least comprises a light-emitting material with adjustable molecular configuration, and different molecular configurations correspond to at least two color intervals with different wavelengths.
Optionally, the light-emitting material comprises a host structure with a tunable molecular configuration and a guest structure with a non-changed molecular configuration.
Optionally, the molecular configuration of the host structure is cured using a voltage.
Optionally, the main body structure comprises a compound X, and the compound X comprises a planar group a and a planar group B which are bonded to each other, and after curing at different voltages, the dihedral angle θ between the planar group a and the planar group B is different.
Optionally, the first color has a center wavelength λ 1, the second color has a center wavelength λ 2, and the third color has a center wavelength λ 3, where λ 1 > λ 2 > λ 3;
the dihedral angle theta corresponding to the first color1Satisfies the following conditions: theta1＜15°；
The dihedral angle theta corresponding to the second color2Satisfies the following conditions: theta < 30 DEG2＜70°；
The dihedral angle theta corresponding to the third color3Satisfies the following conditions: theta < 80 DEG3＜90°。
Optionally, the planar group a is a pyridine group, and/or the planar group B is a carbazole group.
The embodiment of the application provides a display panel, including substrate base plate, first electrode layer, luminous functional layer and the second electrode layer of range upon range of setting, luminous functional layer includes the luminescence unit that a plurality of arrays were arranged, at least part the luminescence unit includes the same but different luminescent material of molecular configuration of molecular formula, and different molecular configurations correspond the color interval of different wavelengths respectively.
Optionally, the molecular configuration of the host structure is cured using a voltage.
Optionally, the light emitting units made of the light emitting material are all prepared by adopting a one-time evaporation process.
Optionally, the light emitting units include a first color light emitting unit, a second color light emitting unit, and a third color light emitting unit, the first color has a central wavelength λ 1, the second color has a central wavelength λ 2, and the third color has a central wavelength λ 3, where λ 1 > λ 2 > λ 3;
at least the second color light emitting unit and the third color light emitting unit are prepared using the light emitting material.
The embodiment of the application provides a display device, which comprises the display panel.
The embodiment of the application provides an optical storage device, including substrate base plate, first electrode layer, luminous functional layer and the second electrode layer of range upon range of setting, luminous functional layer includes the luminescence unit that a plurality of arrays were arranged, the luminescence unit includes the luminescent material of molecular configuration adjustable, the luminescent material includes two kinds of different molecular configurations at least after being solidified.
Optionally, the light emitting functional layer is prepared by a one-time evaporation process.
The embodiment of the present application provides a method for using an optical storage device, where the optical storage device according to the above embodiment is used, the method includes:
acquiring color information on each light-emitting unit according to the content to be displayed;
and performing color curing on each light emitting unit by using different voltages according to the color information.
The semiconductor device provided by the embodiment of the application is applied to a display panel and comprises a substrate, a first electrode, a functional layer and a second electrode which are arranged in a stacked mode, wherein the functional layer at least comprises a light-emitting material with adjustable molecular configuration, and different molecular configurations correspond to at least two color intervals with different wavelengths. That is to say, the luminescent material of the functional layer in the semiconductor device provided by the present application at least includes at least one material with adjustable molecular configuration, different molecular configurations of the material correspond to at least two color regions with different wavelengths, and at least two color regions with different wavelengths are realized by different molecular configurations of at least one material, so that when a display panel is manufactured, only the luminescent material with adjustable molecular configuration needs to be manufactured, and finally, at least two colors of luminescence are realized.
Drawings
In order to more clearly illustrate the embodiments of the present application 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 application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram illustrating a semiconductor device according to an embodiment of the present disclosure;
FIG. 2 shows a schematic molecular structure diagram of a host structure provided in an embodiment of the present application;
FIG. 3 is a schematic diagram illustrating a molecular structure of a guest structure provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram illustrating a display panel provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of another display panel provided in an embodiment of the present application;
fig. 6 is a schematic structural diagram illustrating a display device according to an embodiment of the present application;
FIG. 7 is a schematic structural diagram of an optical storage apparatus according to an embodiment of the present application;
fig. 8 is a flowchart illustrating a method for using an optical storage apparatus according to an embodiment of the present application.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and it will be apparent to those of ordinary skill in the art that the present application is not limited by the specific embodiments disclosed below.
The present application will be described in detail with reference to the drawings, wherein the cross-sectional views illustrating the structure of the device are not enlarged partially in general scale for convenience of illustration, and the drawings are only examples, which should not limit the scope of the present application. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
At present, color display in Organic Light Emitting Display (OLED) is commonly realized by using red, green and blue light emitting materials, but the three colors of light emitting materials are manufactured in a display panel, three times of evaporation processes are needed to form the three colors of light emitting materials, and three masks are needed to control the positions of the three colors of light emitting materials formed by the evaporation processes, so as to prevent the pixel point from being failed due to the fact that the three colors of light emitting materials are evaporated to the same position. That is, the display panel with three colors emitting light with precise positions is manufactured by three times of evaporation processes and three precise masks, so that the manufacturing process is complex and the manufacturing cost is high.
Based on this, the embodiment of the present application provides a semiconductor device, which is applied to a display panel and includes a substrate, a first electrode, a functional layer, and a second electrode, which are stacked, where the functional layer includes at least a light emitting material with an adjustable molecular configuration, and different molecular configurations correspond to at least two color regions with different wavelengths. That is to say, the luminescent material of the functional layer in the semiconductor device provided by the present application at least includes at least one material with adjustable molecular configuration, different molecular configurations of the material correspond to at least two color regions with different wavelengths, and at least two color regions with different wavelengths are realized by different molecular configurations of at least one material, so that when a display panel is manufactured, only the luminescent material with adjustable molecular configuration needs to be manufactured, and finally, at least two colors of luminescence are realized.
For a better understanding of the technical solutions and effects of the present application, specific embodiments will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, a schematic structural diagram of a semiconductor device according to an embodiment of the present application is shown. The semiconductor device provided by the embodiment of the application can be equivalent to a sub-pixel in a display panel, and the sub-pixel can be used as a basic display structure of the display panel. Each of the semiconductor devices may correspond to one color of light emission, and the semiconductor devices of three colors may collectively constitute one pixel of the display panel.
The semiconductor device includes a substrate 110, a first electrode 120, a functional layer 130, and a second electrode 140, which are stacked. The functional layer 130 comprises at least a light emitting material with a tunable molecular configuration, wherein different molecular configurations correspond to at least two color regions with different wavelengths, that is, the material of the functional layer comprises at least a material with a tunable molecular configuration, wherein in some embodiments, the material of the functional layer may comprise the same material with a tunable molecular configuration, the same material is the same material with the same molecular formula, and the same material has the same molecular configuration, and the different molecular configurations of the material correspond to at least two color regions with different wavelengths, so that at least two colors of light are emitted or absorbed by the same material. In some other embodiments, the material of the functional layer may also include different kinds of materials with adjustable molecular configurations, and further more molecular configurations are realized through the different kinds of materials, so as to realize more color luminescence.
In an embodiment of the application, the functional layer comprises a luminescent material comprising at least a host structure with a tunable molecular configuration and a guest structure with a non-tunable molecular configuration.
As a possible implementation manner, the light emitting material may include a first light emitting material and a second light emitting material, the first light emitting material includes a host structure with a tunable molecular configuration and a guest structure with a non-tunable molecular configuration, and the second light emitting material has a non-tunable molecular configuration. The second luminescent material corresponds to luminescence of a first color, the first luminescent material may correspond to luminescence of a second color and a third color, the first color has a central wavelength λ 1, the second color has a central wavelength λ 2, and the third color has a central wavelength λ 3, wherein λ 1 > λ 2 > λ 3.
As an example, the first color is red, the second color is green, and the third color is blue.
At this time, when the semiconductor device or even the display panel is manufactured, only two evaporation processes are needed, wherein one evaporation process simultaneously evaporates the main body structure and the object structure, and the other evaporation process evaporates the second luminescent material.
As another possible implementation manner, the light emitting material included in the functional layer may include a host structure with a tunable molecular configuration and a guest structure with a non-changed molecular configuration. The host structure with adjustable molecular configuration can realize the luminescence of a first color, a second color and a third color by combining with a guest structure with unchanged molecular configuration, the central wavelength of the first color is lambda 1, the central wavelength of the second color is lambda 2, and the central wavelength of the third color is lambda 3, wherein lambda 1 is more than lambda 2 and more than lambda 3. That is, when the light-emitting material includes a host structure with adjustable molecular configuration and a guest structure with unchanged molecular configuration, the light-emitting material can emit light of three colors based on different molecular configurations.
At the moment, when the semiconductor device and even the display panel are manufactured, the light emitting of three colors can be realized only by manufacturing the main body structure and the object structure by using the once evaporation process, and compared with the method of forming the light emitting materials of three colors by using the three evaporation processes, the manufacturing process of the light emitting materials is greatly simplified by using the once evaporation process, and the manufacturing cost of the display panel is further reduced.
In the embodiment of the application, the luminescent material can realize the luminescence of at least 2 colors, because the molecular configuration of the luminescent material is different, specifically, different molecular configurations of the main body structure can correspond to color intervals of different wavelengths, and different molecular configurations of the main body structure under different voltage curing can be realized by using the molecular configuration of the voltage curing main body structure, thereby realizing the color luminescence of different wavelengths.
The molecular configuration of the host structure can be cured by voltage, i.e. the molecular configuration of the host structure is different at different voltages. After the voltage is applied to the main body structure, the molecular configuration of the main body structure is determined, and even if the applied voltage is removed, the molecular configuration of the main body structure is not changed, that is, the molecular configuration of the main body structure is not changed after the voltage is applied, so that the molecular configuration can be maintained, long-term light emission of a certain color can be realized, and the stability of the light emitting material using the material of the main body structure as a display panel is high.
In an embodiment of the present application, the molecular configuration of the host structure is tunable, the molecular configuration of the guest structure is not changed, the molecular configuration of the host structure is changed, and in combination with the guest structure, light emission of colors of a first color, a second color, and a third color 3 can be realized, where the central wavelength of the first color is longer than the central wavelengths of the second color and the third color. The material of the guest structure can be a naphthalene compound substituted by arylamine.
In an embodiment of the present application, the material of the host structure may include at least a compound X, and the compound X may be a phosphorus-oxygen group-containing compound, because under the action of a voltage, the phosphorus-oxygen group-containing compound may be cured to form different molecular configurations, and after the guest structure is combined, each molecular configuration corresponds to a color interval of one wavelength.
Specifically, the compound X includes a planar group a and a planar group B which are bonded to each other, and after curing at different voltages, the dihedral angle θ between the planar group a and the planar group B is different, and the corresponding host structures have different molecular configurations, so that the corresponding luminescent colors are different after the compound X is combined with the guest structures. Wherein a planar group represents a coplanar arrangement of atoms in the group, the atoms of the group being in the same plane.
As a possible implementation manner, the central wavelength of the first color is λ 1, the central wavelength of the second color is λ 2, and the central wavelength of the third color is λ 3, where λ 1 > λ 2 > λ 3, then the dihedral angle θ corresponding to the first color is1Satisfies the following conditions: theta1< 15 °, dihedral angle θ corresponding to the second color2Satisfies the following conditions: theta < 30 DEG2< 70 °, dihedral angle θ corresponding to the third color3Satisfies the following conditions: theta < 80 DEG3＜90°。
That is, the dihedral angle θ between the planar group A and the planar group B is less than 15 °, and the two parts of the planar group A and the planar group B are close to planar, the molecules are extended in conjugation, and accordingly, the conjugated surface is extended, the pi-pi function between the molecules is enhanced, and an excimer is formed between the two host molecules in an excited state, that is, an excimer is formed between the planar group A and the planar group B. Due to the reduction of the energy of the host structure itself, the energy is not transferred to the guest structure, resulting in the emission of the first color.
The phosphorus-oxygen group in the plane group A moves under the action of an electric field to push the plane group A to rotate, the dihedral angle theta between the plane group A and the plane group B is 30-70 degrees, and at the moment, the host structure transmits energy to the object structure to generate light of a second color.
The dihedral angle theta formed by the planar group A and the planar group B is between 80 and 90 degrees, and the host structure transfers energy to the guest structure to generate light of a third color.
Referring to fig. 2 and 3, fig. 2 is a schematic view of a molecular structure of a host structure provided in an embodiment of the present application, and fig. 3 is a schematic view of a molecular structure of a guest structure provided in an embodiment of the present application. The host structure shown in fig. 2 is a phosphorus-oxygen group-containing compound including a planar group a and a planar group B bonded to each other, the planar group a may be a pyridine group, and the planar group B may be a carbazole group. The guest structure shown in fig. 3 is a naphthalene compound, and sky blue light emission can be realized.
As an example, the first color is red, the second color is green, and the third color is blue. When the molecular configuration of the host structure is cured by voltage, different voltages can be applied to realize different molecular configurations of the host structure.
When a voltage of 9V or above is applied to the main structure, the dihedral angle theta of the pyridine group and the carbazole group is smaller than 15 degrees, the two parts of the pyridine group and the carbazole group are close to a plane, the molecular conjugation is enhanced, the molecular conjugation is enlarged, correspondingly, the conjugated plane is enlarged, the pi-pi action between molecules is enhanced, and an Excimer is formed between two main molecules in an excited state, namely an Excimer (eximer) is formed between the plane group A and the plane group B. Due to the reduction of the self energy of the host structure, the single triplet state energy level is lower, the energy cannot be transferred to the guest structure, and the light emitting red shift of the excimer forms red light emission. The excimer is an aggregate of two molecules or atoms of the same kind, the two molecules or atoms have stronger action in an excited state to generate a new energy level, the emission spectrum is different from that of a single material, and the spectrum has no fine structure and is red-shifted.
When a voltage of 6V-9V is applied to the host structure, the phosphorus-oxygen group in the carbazole group moves under the action of an electric field to push the carbazole group to rotate, the dihedral angle theta between the pyridine group and the carbazole group is 30-70 degrees, the molecular dipole moment of the host structure is about 8 Debye (debye), and the host structure transmits energy to the guest structure to generate green light emission.
When a voltage of less than 6V is applied to the host structure, the dihedral angle theta formed by the pyridine group and the carbazole group is between 80 and 90 degrees, the molecular dipole moment of the host structure is less than 3debye, and the host structure transfers energy to the guest structure to generate blue light emission.
As can be seen from the above description, the semiconductor device in the embodiment of the present application includes a functional layer, the functional layer at least includes at least one light emitting material with adjustable molecular configuration, different molecular configurations of the material correspond to at least two color regions with different wavelengths, and different molecular configurations of the at least one material correspond to at least two color regions with different wavelengths, so that light emission of at least two colors is finally achieved by using different molecular configurations of the at least one material.
Therefore, the semiconductor device provided by the embodiment of the application is applied to a display panel and comprises a substrate, a first electrode, a functional layer and a second electrode which are arranged in a stacked mode, wherein the functional layer at least comprises a light-emitting material with adjustable molecular configuration, and different molecular configurations correspond to at least two color intervals with different wavelengths. That is to say, the luminescent material of the functional layer in the semiconductor device provided by the present application at least includes at least one material with adjustable molecular configuration, different molecular configurations of the material correspond to at least two color regions with different wavelengths, and at least two color regions with different wavelengths are realized by different molecular configurations of at least one material, so that when a display panel is manufactured, only the luminescent material with adjustable molecular configuration needs to be manufactured, and finally, at least two colors of luminescence are realized.
Based on the semiconductor device provided by the above embodiments, the embodiments of the present application further provide a display panel, and the working principle of the display panel is described in detail below with reference to the accompanying drawings.
Referring to fig. 4, the figure is a block diagram of a display panel according to an embodiment of the present disclosure.
The display panel provided by the present embodiment includes a base substrate 410, a first electrode layer 420, a light-emitting functional layer 430, and a second electrode layer 440, which are stacked. The light-emitting function layer 430 includes a plurality of light-emitting units 431 arranged in an array, and at least a portion of the light-emitting units 431 include light-emitting materials having the same molecular formula but different molecular configurations, and the different molecular configurations respectively correspond to color regions with different wavelengths.
In the embodiment of the present application, the array arrangement of the light emitting units refers to repeated arrangement according to a certain arrangement rule, and finally, a pixel structure with a certain arrangement rule is formed, and the array arrangement is not only a matrix arrangement.
That is, a part or all of the light emitting units 431 include light emitting materials having the same molecular formula but different molecular configurations. Specifically, the light emitting unit 431 may include a first color light emitting unit, a second color light emitting unit, and a third color light emitting unit, the first color light emitting unit has a central wavelength λ 1, the second color light emitting unit has a central wavelength λ 2, and the third color light emitting unit has a central wavelength λ 3, where λ 1 > λ 2 > λ 3, and at least the second color light emitting unit and the third color light emitting unit are made of light emitting materials having the same molecular formula but different molecular configurations.
As a possible implementation manner, all the light emitting units 431 are made of light emitting materials with the same molecular formula but different molecular configurations, that is, the light emitting units 431 are made of host structures with different molecular configurations and guest structures with unchanged molecular configurations, and the host structures with different molecular configurations and the guest structures with unchanged molecular configurations are used to realize light emission of three colors, that is, the same light emitting material is used to realize light emission of the first color, the second color, and the third color at the same time.
As another possible implementation manner, a part of the light emitting units 431 is made of a light emitting material with the same molecular formula but different molecular configurations, another part of the light emitting units 431 is made of a light emitting material with a first color, that is, the part of the light emitting units 431 is made of a host structure with different molecular configurations, the host structure with different molecular configurations is used for realizing light emission of two colors, so as to realize light emission of a second color and a third color, and another part of the light emitting units 431 is made of a light emitting material with a first color, so as to realize light emission of the first color.
When different configurations of the host structure are specifically realized, various molecular configurations of the host structure can be obtained by voltage curing. The molecular configuration of the host structure can be cured by voltage, i.e. the molecular configuration of the host structure is different at different voltages. After the voltage is applied to the host structure, the molecular configuration of the host structure is determined, and even if the applied voltage is removed, the molecular configuration of the host structure is not changed, that is, the molecular configuration of the host structure is not changed after the voltage is applied, so that the molecular configuration can be maintained, long-term light emission of a certain color can be realized, and the stability of the light-emitting material using the materials of the host structure and the guest structure as the display panel is high.
If the luminescent materials with the same molecular formula but different molecular configurations are adopted, the luminescent units are prepared by one-time evaporation process when the luminescent materials are used for manufacturing the luminescent units.
As an example, all the light emitting units 431 are made of light emitting materials with the same molecular formula but different molecular configurations, and the light emitting materials are prepared by a single evaporation process, and then different molecular configurations are cured by different voltages, so as to obtain light emitting units with different colors.
Compared with the light-emitting unit with three colors formed by three times of evaporation processes, the manufacturing process of the light-emitting unit is greatly simplified by one time of process, and the manufacturing cost of the display panel is further reduced.
Specifically, when the light-emitting unit is manufactured by using an evaporation process, the common mask can be used for realizing the one-time evaporation of the light-emitting material, and the fine mask with full holes can also be used for realizing the one-time evaporation of the light-emitting material.
In the embodiment of the present application, the substrate may be a substrate having thin film transistors distributed in an array, and the array distribution rule of the thin film transistors is the same as that of the light emitting units, that is, the thin film transistors in the array substrate correspond to the light emitting units one to one.
In the embodiment of the present application, referring to fig. 5, a schematic view of another display panel provided in the embodiment of the present application is shown. The light emitting function layer 430 further includes a first carrier injection layer 510 and a first carrier transport layer 520 sequentially stacked between the first electrode 420 and the light emitting unit 431, where the first carrier injection layer 510 may be a hole injection layer, and the first carrier transport layer 520 may be a hole transport layer, and is configured to provide holes for light emission for the light emitting unit 431, so as to improve a light emitting effect.
The light emitting function layer 430 further includes a first carrier blocking layer 530, a second carrier transport layer 540 and a second carrier injection layer 550 sequentially stacked between the light emitting unit 431 and the second electrode 440, the first carrier blocking layer 530 may be a hole blocking layer, the second carrier transport layer 540 may be an electron transport layer, and the second carrier injection layer 540 may be an electron injection layer, and is configured to provide electrons for the light emitting unit 431 to emit light, so that a light emitting effect is improved.
The light emitting function layer 430 further includes a microcavity adjusting layer 560 between the light emitting unit 431 and the first carrier transport layer 520, and the microcavity adjusting layer 560 includes a plurality of microcavity adjusting regions 561, each of which corresponds to one light emitting device 431.
In the embodiment of the present application, the substrate 410 is an array substrate having a thin film transistor, and the thin film transistor corresponds to the light emitting unit 431 for providing driving for the display panel. An insulating layer may be further provided between the substrate 410 and the first electrode 420, and the substrate 410 and the first electrode 420 are electrically connected by a via contact penetrating the insulating layer.
Therefore, the display panel provided by the embodiment of the application includes a substrate, a first electrode, a light-emitting functional layer and a second electrode, which are stacked, wherein the light-emitting functional layer includes a plurality of light-emitting units arranged in an array, at least a part of the light-emitting units include light-emitting materials with the same molecular formula but different molecular configurations, and the different molecular configurations respectively correspond to color intervals with different wavelengths. That is to say, the luminescent material of some or all of the light-emitting units in the plurality of light-emitting units provided by the present application is at least one material with different molecular configurations, and the different molecular configurations of the material correspond to at least two color regions with different wavelengths, so that at least one material corresponds to at least two color regions with different wavelengths, and thus when a display panel is manufactured, only the light-emitting unit including the luminescent material with adjustable molecular configuration needs to be manufactured, and finally, light emission of at least two colors is realized.
The embodiment of the present application further provides a display device, which includes the display panel described in the above embodiment.
Fig. 6 is a schematic plan view of a display device according to an embodiment of the present disclosure. As can be seen from the figure, the display device 1000 includes the display panel 100, and the display panel 100 is the display panel 100 described in any of the embodiments. The display device 1000 provided in the embodiment of the present application may be other display devices with a display function, such as a mobile phone, a computer, a television, and a vehicle-mounted display device, and the embodiment of the present application is not particularly limited. The display device 1000 provided in the embodiment of the present application has the beneficial effects of the display panel 100 provided in the embodiment of the present application, and specific reference may be specifically made to the specific description of the display panel in the above embodiment, which is not repeated herein.
Based on the semiconductor device provided by the above embodiments, the embodiments of the present application further provide an optical storage device, and the working principle of the optical storage device is described in detail below with reference to the accompanying drawings.
Referring to fig. 7, this figure is a block diagram of an optical storage apparatus according to an embodiment of the present application.
The optical storage device provided by the present embodiment includes a substrate 710, a first electrode layer 720, a light-emitting functional layer 730, and a second electrode layer 740, which are stacked. The light-emitting functional layer 730 includes a plurality of light-emitting units 731 arranged in an array, where the light-emitting units 731 include light-emitting materials with the same molecular formula but adjustable molecular configuration, and the light-emitting materials at least include two different molecular configurations after being cured, and the different molecular configurations respectively correspond to color regions with different wavelengths.
In the embodiment of the present application, the array arrangement of the light emitting units refers to repeated arrangement according to a certain arrangement rule, and finally, a pixel structure with a certain arrangement rule is formed, and the array arrangement is not only a matrix arrangement.
Because the light-emitting unit comprises the material with adjustable molecular configuration, different molecular configurations can be cured by different voltages, and each molecular configuration corresponds to one of the color intervals, the light-emitting unit can be used for realizing information storage of different colors, namely the voltage is used for curing the molecular configuration to realize information storage of the color corresponding to the molecular configuration.
Specifically, different voltages can be used to perform color setting on the light-emitting units, and the light-emitting units including the light-emitting material with adjustable molecular configuration can emit light of at least 3 colors, that is, each light-emitting unit can have at least 3 color choices and can store 3 pieces of information, so that the optical storage device can store 3 pieces of informationnAnd n is the number of the light-emitting units. The amount of information that can be stored compared to binary 2 for the same number of light-emitting cellsnThe amount of information that can be stored by the optical storage device provided by the embodiment of the application is binary (1.5)nAnd (4) doubling.
When the light-emitting functional layer in the optical storage device is manufactured, the light-emitting functional layer can be manufactured by evaporating the light-emitting materials with the same molecular formula but adjustable molecular configuration by using a one-time evaporation process.
Based on the optical storage device provided by the above embodiments, the embodiments of the present application further provide a method for using the optical storage device, and the working principle of the optical storage device is described in detail below with reference to the accompanying drawings.
Referring to fig. 8, this figure is a flowchart of a method for using an optical storage apparatus according to an embodiment of the present application.
The optical storage device in the method for using the optical storage device provided by the embodiment of the present application is the optical storage device provided by the above embodiment, and the method includes the following steps:
s101, acquiring color information on each light-emitting unit according to the content needing to be displayed.
In the embodiment of the present application, color information on each light-emitting unit may be obtained according to actually what needs to be displayed, that is, a color information distribution condition in the light-emitting function layer is obtained, where the color information distribution condition corresponds to specific content that needs to be displayed, and the color information is a corresponding display color.
As an example, the first light emitting unit corresponds to a first color, the second light emitting unit corresponds to a second color, the third light emitting unit corresponds to a third color, a center wavelength of the first color is λ 1, a center wavelength of the second color is λ 2, and a center wavelength of the third color is λ 3, where λ 1 > λ 2 > λ 3.
And S102, performing color curing on each light-emitting unit by using different voltages according to the color information.
In the embodiment of the present application, after obtaining the color information of each light emitting cell, each light emitting cell may be color-cured using a different voltage.
That is, each light emitting unit has color information, the molecular configuration of the light emitting material of the light emitting unit is determined according to the color information, and the light emitting unit is color-cured using a voltage corresponding to the molecular configuration.
As an example, the first light emitting unit corresponds to a first color, the first color corresponds to a first molecular configuration, and the first light emitting unit is color-cured using a voltage corresponding to the first molecular configuration.
In the embodiment of the present application, according to the content to be displayed, color information on each light emitting unit can be obtained, for example, a first color corresponds to a first light emitting unit, a second color corresponds to a second light emitting unit, a third color corresponds to a third light emitting unit, and the like, where the molecular configuration of each light emitting unit is not cured, and the color corresponding to each light emitting unit is a color to be stored in the light emitting unit, so that the light emitting unit displays the stored color subsequently.
After the color information to be stored in each light-emitting unit is obtained, the molecular configuration of the light-emitting unit is subjected to color curing by using corresponding voltage so as to realize the storage of the color by the light-emitting unit, at the moment, the molecular configuration of the light-emitting unit is cured by the voltage and cannot be changed, when the voltage is applied to the light-emitting unit again, the light-emitting unit emits the light of the color corresponding to the molecular configuration due to the fact that the molecular configuration of the light-emitting unit is determined, the stored color is displayed, and the color information stored by the light-emitting unit is displayed for a user.
The foregoing is merely a preferred embodiment of the present application and, although the present application discloses the foregoing preferred embodiments, the present application is not limited thereto. Those skilled in the art can now make numerous possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments, using the methods and techniques disclosed above, without departing from the scope of the claimed embodiments. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still fall within the protection scope of the technical solution of the present application without departing from the content of the technical solution of the present application.
Claims (14)
1. The semiconductor device is characterized by comprising a substrate, a first electrode, a functional layer and a second electrode which are arranged in a stacked mode, wherein the functional layer at least comprises a light-emitting material with adjustable molecular configuration, and different molecular configurations correspond to at least two color intervals with different wavelengths.
2. The semiconductor device according to claim 1, wherein the light-emitting material comprises a host structure with a tunable molecular configuration and a guest structure with a non-tunable molecular configuration.
3. The semiconductor device of claim 1, wherein the molecular configuration of the host structure is cured using a voltage.
4. The semiconductor device according to claim 3, wherein the body structure comprises a compound X comprising a planar group A and a planar group B bonded to each other, and wherein after curing at different voltages, a dihedral angle θ between the planar group A and the planar group B is different.
5. The semiconductor device according to claim 4, wherein a center wavelength of the first color is λ 1, a center wavelength of the second color is λ 2, and a center wavelength of the third color is λ 3, where λ 1 > λ 2 > λ 3;
the dihedral angle theta corresponding to the first color1Satisfies the following conditions: theta1＜15°；
The dihedral angle theta corresponding to the second color2Satisfies the following conditions: theta < 30 DEG2＜70°；
The dihedral angle theta corresponding to the third color3Satisfies the following conditions: theta < 80 DEG3＜90°。
6. The semiconductor device according to claim 4, wherein the planar group A is a pyridine group, and/or the planar group B is a carbazole group.
7. The display panel is characterized by comprising a substrate base plate, a first electrode layer, a light-emitting functional layer and a second electrode layer which are arranged in a laminated mode, wherein the light-emitting functional layer comprises a plurality of light-emitting units which are arranged in an array mode, at least part of the light-emitting units comprise light-emitting materials which are the same in molecular formula but different in molecular configuration, and different molecular configurations respectively correspond to color intervals with different wavelengths.
8. The display panel of claim 7, wherein the molecular configuration of the host structure is cured using a voltage.
9. The display panel according to claim 7, wherein the light emitting units made of the light emitting material are all prepared by a single evaporation process.
10. The display panel according to claim 7, wherein the light emitting units include a first color light emitting unit, a second color light emitting unit, and a third color light emitting unit, the first color has a center wavelength λ 1, the second color has a center wavelength λ 2, and the third color has a center wavelength λ 3, where λ 1 > λ 2 > λ 3;
at least the second color light emitting unit and the third color light emitting unit are prepared using the light emitting material.
11. A display device characterized by comprising the display panel according to any one of claims 7 to 10.
12. An optical storage device is characterized by comprising a substrate base plate, a first electrode layer, a light-emitting functional layer and a second electrode layer which are arranged in a laminated mode, wherein the light-emitting functional layer comprises a plurality of light-emitting units which are arranged in an array mode, each light-emitting unit comprises a light-emitting material with adjustable molecular configuration, and the light-emitting materials at least comprise two different molecular configurations after being cured.
13. The optical storage device according to claim 12, wherein the light emitting functional layer is prepared by a one-time evaporation process.
14. A method for using an optical storage device, wherein the optical storage device of claim 12 is used, the method comprising:
acquiring color information on each light-emitting unit according to the content to be displayed;
and performing color curing on each light emitting unit by using different voltages according to the color information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111639834.3A CN114361352B (en) | 2021-12-29 | 2021-12-29 | Semiconductor device, display panel and device, optical storage device and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111639834.3A CN114361352B (en) | 2021-12-29 | 2021-12-29 | Semiconductor device, display panel and device, optical storage device and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114361352A true CN114361352A (en) | 2022-04-15 |
| CN114361352B CN114361352B (en) | 2024-02-02 |
Family
ID=81103989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111639834.3A Active CN114361352B (en) | 2021-12-29 | 2021-12-29 | Semiconductor device, display panel and device, optical storage device and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114361352B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101211960A (en) * | 2006-12-28 | 2008-07-02 | 上海广电电子股份有限公司 | Organic electroluminescent display device and method of manufacture |
| CN103915471A (en) * | 2012-12-31 | 2014-07-09 | 乐金显示有限公司 | Organic light emitting diode display device and method for manufacturing the same |
| KR20170048311A (en) * | 2017-04-27 | 2017-05-08 | 엘지디스플레이 주식회사 | Quantum rod solution composition, Quantum rod sheet and Display device including the same |
| CN106653803A (en) * | 2016-11-21 | 2017-05-10 | 上海天马有机发光显示技术有限公司 | Organic light emitting display panel and organic light emitting display device |
| JP2017143265A (en) * | 2016-02-12 | 2017-08-17 | 国立大学法人九州大学 | Light-emitting particle, composition, organic electroluminescent element, and manufacturing method thereof |
| CN108586541A (en) * | 2018-06-07 | 2018-09-28 | 烟台显华光电材料研究院有限公司 | One kind is used as transient metal complex and its application of phosphor material |
| CN109698275A (en) * | 2017-10-23 | 2019-04-30 | 北京赛特超润界面科技有限公司 | A kind of preparation method of small organic molecule crystal pattern array |
| CN110616069A (en) * | 2019-09-05 | 2019-12-27 | 常州大学 | BINAP room temperature phosphorescent material with adjustable luminescent color and application thereof |
| CN110854279A (en) * | 2019-10-22 | 2020-02-28 | 深圳市华星光电技术有限公司 | OLED display panel and display device |
| CN111793063A (en) * | 2020-06-02 | 2020-10-20 | 东莞阿尔达新材料科技有限公司 | Organic light-emitting molecules and application thereof in organic light-emitting diode |
| CN111952477A (en) * | 2020-08-24 | 2020-11-17 | 云谷（固安）科技有限公司 | Display panel and display device |
| CN112645877A (en) * | 2020-12-22 | 2021-04-13 | 上海工程技术大学 | Fluorescent stress response material based on naphthalimide derivative and preparation and application thereof |
-
2021
- 2021-12-29 CN CN202111639834.3A patent/CN114361352B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101211960A (en) * | 2006-12-28 | 2008-07-02 | 上海广电电子股份有限公司 | Organic electroluminescent display device and method of manufacture |
| CN103915471A (en) * | 2012-12-31 | 2014-07-09 | 乐金显示有限公司 | Organic light emitting diode display device and method for manufacturing the same |
| JP2017143265A (en) * | 2016-02-12 | 2017-08-17 | 国立大学法人九州大学 | Light-emitting particle, composition, organic electroluminescent element, and manufacturing method thereof |
| CN106653803A (en) * | 2016-11-21 | 2017-05-10 | 上海天马有机发光显示技术有限公司 | Organic light emitting display panel and organic light emitting display device |
| KR20170048311A (en) * | 2017-04-27 | 2017-05-08 | 엘지디스플레이 주식회사 | Quantum rod solution composition, Quantum rod sheet and Display device including the same |
| CN109698275A (en) * | 2017-10-23 | 2019-04-30 | 北京赛特超润界面科技有限公司 | A kind of preparation method of small organic molecule crystal pattern array |
| CN108586541A (en) * | 2018-06-07 | 2018-09-28 | 烟台显华光电材料研究院有限公司 | One kind is used as transient metal complex and its application of phosphor material |
| CN110616069A (en) * | 2019-09-05 | 2019-12-27 | 常州大学 | BINAP room temperature phosphorescent material with adjustable luminescent color and application thereof |
| CN110854279A (en) * | 2019-10-22 | 2020-02-28 | 深圳市华星光电技术有限公司 | OLED display panel and display device |
| CN111793063A (en) * | 2020-06-02 | 2020-10-20 | 东莞阿尔达新材料科技有限公司 | Organic light-emitting molecules and application thereof in organic light-emitting diode |
| CN111952477A (en) * | 2020-08-24 | 2020-11-17 | 云谷（固安）科技有限公司 | Display panel and display device |
| CN112645877A (en) * | 2020-12-22 | 2021-04-13 | 上海工程技术大学 | Fluorescent stress response material based on naphthalimide derivative and preparation and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114361352B (en) | 2024-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Forrest et al. | The dawn of organic electronics | |
| KR100707544B1 (en) | Organic electroluminescence display device | |
| KR100692451B1 (en) | Electro-optic device, semiconductor device, electro-optic device substrate, manufacturing methods thereof, and electronic apparatus | |
| US7576812B2 (en) | Liquid crystal display device and method for fabricating the same | |
| CN100364133C (en) | Display apparatus and manufacturing method thereof | |
| US20190305241A1 (en) | Crosslinked emissive layer containing quantum dots for light-emitting device and method for making same | |
| CN107425043B (en) | Organic light emitting display device, control method and display device | |
| US7528543B2 (en) | Display device and method of making display device | |
| JP2001313172A (en) | Organic electroluminescent white light source and manufacturing method of the same | |
| JP4651916B2 (en) | Method for manufacturing light emitting device | |
| US7948160B2 (en) | Optical device and manufacturing method of the optical device | |
| CN110890473B (en) | Organic light emitting device and display apparatus with tunable emission color | |
| Zhang et al. | Color-tunable, spectra-stable flexible white top-emitting organic light-emitting devices based on alternating current driven and dual-microcavity technology | |
| CN107623021B (en) | OLED display manufacturing method and OLED display | |
| JP2020021075A (en) | Very high resolution amoled display | |
| JP2018098195A (en) | Electroluminescent display device | |
| US20030222576A1 (en) | Full color organic light-emitting display device | |
| CN111834552A (en) | Display panel, organic light-emitting component and manufacturing method thereof | |
| US6867756B2 (en) | Electroluminescence display device | |
| CN107425129B (en) | organic light-emitting display panel, color temperature adjusting method thereof and display device | |
| US20030193796A1 (en) | Light-emitting devices | |
| US11315984B2 (en) | Color filter substrate, manufacturing method thereof, and OLED display device | |
| US10243160B2 (en) | Organic light emitting device, manufacturing method thereof and display apparatus | |
| TW201214823A (en) | Light-emitting device | |
| CN114361352A (en) | Semiconductor device, display panel and device, optical storage device and method of using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |