CN111883684A - Organic light-emitting display panel and display device - Google Patents
Organic light-emitting display panel and display device Download PDFInfo
- Publication number
- CN111883684A CN111883684A CN202010789985.6A CN202010789985A CN111883684A CN 111883684 A CN111883684 A CN 111883684A CN 202010789985 A CN202010789985 A CN 202010789985A CN 111883684 A CN111883684 A CN 111883684A
- Authority
- CN
- China
- Prior art keywords
- light emitting
- layer
- microlens
- light
- emitting unit
- 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
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
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/858—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses
-
- 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
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/40—OLEDs integrated with touch screens
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The embodiment of the application provides an organic light-emitting display panel and a display device, wherein the organic light-emitting display panel comprises a display area and a non-display area surrounding the display area; the display area comprises a substrate, an organic light-emitting layer which is arranged on one side of the substrate and comprises a plurality of light-emitting units, a pixel definition layer which comprises a plurality of first openings surrounding the light-emitting units, and a micro-lens layer which is arranged on one side of the pixel definition layer, which is far away from the substrate and comprises a plurality of micro-lenses; the micro lens is arranged between the adjacent light-emitting units, and the orthographic projection of the micro lens on the substrate covers the orthographic projection part of the adjacent light-emitting unit on the substrate. This application sets up the microlens through the top in region between the luminescence unit and the edge part overlap of the part of microlens and luminescence unit, can become the low angle light with big angle light and make the light that is located the luminescence unit edge be restricted near luminescence unit place region, and then improve luminescence unit's luminous efficacy.
Description
[ technical field ] A method for producing a semiconductor device
The present application relates to the field of display technologies, and in particular, to an organic light emitting display panel and a display device.
[ background of the invention ]
Compared with a liquid crystal display screen, the organic light-emitting display screen has the advantages of being lighter and thinner, high in brightness, low in power consumption, fast in response, high in definition, good in flexibility, high in light-emitting efficiency and the like, and gradually becomes a mainstream display technology. The organic light emitting display screen has the light emitting principle that holes generated by an anode and electrons generated by a cathode in an organic light emitting device move under the action of an electric field, are respectively injected into a hole transport layer and an electron transport layer and migrate to an organic light emitting material layer, and when the holes and the electrons meet at the light emitting material layer, energy excitons are generated, so that light emitting molecules in the organic light emitting material layer are excited to generate visible light.
The organic light-emitting display screen comprises a plurality of film layer structures with different refractive indexes, so that light emitted by one pixel can be reflected and refracted in various modes and cannot be emitted from the position right above the pixel, and the light-emitting brightness is influenced.
[ summary of the invention ]
In view of the above, embodiments of the present application provide an organic light emitting display panel and a display device to solve the above problems.
In a first aspect, the present application provides an organic light emitting display panel including a display area and a non-display area surrounding the display area; the display area comprises a substrate, an organic light-emitting layer which is arranged on one side of the substrate and comprises a plurality of light-emitting units, a pixel definition layer which comprises a plurality of first openings surrounding the light-emitting units, and a micro-lens layer which is arranged on one side of the pixel definition layer, which is far away from the substrate and comprises a plurality of micro-lenses; the micro lens is arranged between the adjacent light-emitting units, and the orthographic projection of the micro lens on the substrate covers the orthographic projection part of the adjacent light-emitting unit on the substrate.
In a second aspect, the present application provides an organic light emitting display device comprising the organic light emitting display panel as provided in the first aspect.
This application embodiment sets up the microlens through the top in region between the luminescence unit, can become the effect of the partial wide-angle light that the luminescence unit sent to small angle light and then can follow the luminescence unit and directly over and jet out basically. Meanwhile, along the thickness direction of the organic light-emitting display panel, the part of the micro lens is overlapped with the part of the light-emitting unit, and the overlapped position is close to the edge position of the area where the light-emitting unit is located, when part of high-angle light of the light-emitting unit is emitted towards the upper direction of the area between the adjacent light-emitting units, the part of high-angle light passes through the micro lens located near the edge position of the light-emitting unit and is changed by the micro lens to change the propagation angle of the light, so that most part of the part of light cannot reach the upper area between the light-emitting units and is limited near the area where the light-emitting unit is located.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only 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 view of an organic light emitting display panel according to an embodiment of the present disclosure;
fig. 2 is a cross-sectional view of a display area of an organic light emitting display panel according to an embodiment of the present disclosure;
fig. 3 is a cross-sectional view of a display area of another organic light emitting display panel according to an embodiment of the present disclosure;
fig. 4 is a front projection view of an organic light emitting display panel according to an embodiment of the present disclosure;
fig. 5 is a front projection view of another organic light emitting display panel according to an embodiment of the present disclosure;
fig. 6 is a cross-sectional view of a display area of another organic light emitting display panel according to an embodiment of the present disclosure;
fig. 7 is a cross-sectional view of a display area of another organic light emitting display panel according to an embodiment of the present disclosure;
fig. 8 is a cross-sectional view of a display area of another organic light emitting display panel according to an embodiment of the present disclosure;
fig. 9 is a cross-sectional view of a display area of another organic light emitting display panel according to an embodiment of the present disclosure;
fig. 10 is a schematic view of another organic light emitting display panel provided in an embodiment of the present application;
fig. 11 is a cross-sectional view of a display area of an organic light emitting display panel according to another embodiment of the present application;
fig. 12 is a front view of another organic light emitting display panel according to another embodiment of the present disclosure;
fig. 13 is a cross-sectional view of a display area of another organic light emitting display panel according to another embodiment of the present application;
fig. 14 is a cross-sectional view of a display area of another organic light emitting display panel according to an embodiment of the present disclosure;
fig. 15 is a cross-sectional view of an organic light emitting display panel according to an embodiment of the present disclosure;
fig. 16 is a schematic diagram of an organic light emitting display device according to an embodiment of the present disclosure.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.
It should be understood that the embodiments described are only a few embodiments of the present application, and not all 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 application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the description herein, it is to be understood that the terms "substantially", "approximately", "about", "substantially", and the like, as used in the claims and the examples herein, are intended to be generally accepted as not being precise, within the scope of reasonable process operation or tolerance.
It should be understood that although the terms first, second, third, etc. may be used to describe the light emitting units in the embodiments of the present application, the light emitting units should not be limited to these terms. These terms are only used to distinguish the light emitting units from each other. For example, the first light emitting unit may also be referred to as a second light emitting unit, and similarly, the second light emitting unit may also be referred to as a first light emitting unit without departing from the scope of the embodiments of the present application.
The applicant provides a solution to the problems of the prior art through intensive research.
Fig. 1 is a schematic view of an organic light emitting display panel according to an embodiment of the present disclosure, fig. 2 is a cross-sectional view of a display area of an organic light emitting display panel according to an embodiment of the present disclosure, fig. 3 is a cross-sectional view of a display area of another organic light emitting display panel according to an embodiment of the present disclosure, and fig. 4 is an orthographic view of an organic light emitting display panel according to an embodiment of the present disclosure.
As shown in fig. 1, an organic light emitting display panel provided by an embodiment of the present application includes a display area AA and a non-display area BB surrounding the display area AA. The display area AA is a portion where light emission display is performed, and the non-display area BB is a portion where peripheral circuits are provided.
As shown in fig. 2 and 3, the display area AA includes a substrate 01, a thin film transistor layer 02, an organic light emitting layer 03, a pixel defining layer 04, and a microlens layer 06.
The thin film transistor layer 02 is located on a side of the substrate 01 near a light emitting surface of the organic light emitting display panel and includes a plurality of thin film transistors 20. The thin film transistor 20 includes an active layer 21, a gate electrode 22, a drain electrode 23, and a source electrode 24.
Organic light-emitting layer 03 is located on one side of substrate 01, specifically, on one side of thin-film transistor layer 02 away from substrate 01. The organic light emitting layer 03 includes a plurality of light emitting cells 30, and the light emitting cells 30 are electrically connected to at least one thin film transistor 20. Specifically, as shown in fig. 2, the light emitting unit 30 may include an anode 31, a cathode 32, and an organic light emitting material layer 33 between the anode 31 and the cathode 32; in addition, a hole transport layer 34 is further included between the anode 31 and the organic light emitting material layer 33, and an electron transport layer 35 is further included between the cathode 32 and the organic light emitting material layer 33; the anode 31 of the light emitting unit 30 is electrically connected to at least one thin film transistor 20. Furthermore, in an alternative implementation of the embodiment of the present application, the cathode 32 of the light emitting unit 30 is electrically connected to the at least one thin film transistor 20.
The pixel defining layer 04 includes a plurality of first openings, and the light emitting unit 30 is positioned in the first openings of the pixel defining layer 04, it being understood that the pixel defining layer 04 surrounds the light emitting unit 30.
The microlens layer 06 is located on a side of the pixel defining layer 04 away from the substrate base plate 01, and the microlens layer 06 includes a plurality of microlenses 60, and the microlenses 60 are disposed between adjacent light emitting units 30. As shown in fig. 4, the orthographic projection of the microlens 60 on the substrate base 01 covers the orthographic projection of the light-emitting unit 30 adjacent thereto on the substrate base 01, that is, there is overlap between the orthographic projection of the microlens 60 on the substrate base 01 and the orthographic projection of the adjacent light-emitting unit 30 on the substrate base 01.
Since the light emitted from the light emitting unit 30 is not collimated light, that is, the light emitted from the light emitting unit 30 has a certain divergence angle, and the divergence angle of the light emitted from the light emitting unit 30 and reaching the outside of the light emitting unit 30 is large, the light with large angle is dissipated after total reflection or multiple refractions with a high probability, which affects the light extraction efficiency of the light emitting unit 30. By providing the microlens 60 above the region between the light emitting units 30, the effect of part of the large-angle light emitted from the light emitting units 30 can be changed to small-angle light and can be emitted substantially directly from the light emitting units 30. Meanwhile, along the thickness direction of the organic light emitting display panel, a part of the microlens 60 overlaps with a part of the light emitting unit 30, and the overlapping position is close to the edge position of the region where the light emitting unit 30 is located, when part of the large-angle light of the light emitting unit 30 is emitted to the upper direction of the region between the adjacent light emitting units 30, the large-angle light passes through the microlens 60 located near the edge position of the light emitting unit 30 and is changed by the microlens 60 in the light transmission angle, so that most of the part of the light cannot reach the upper region between the light emitting units 30, but is limited in the region where the light emitting unit 30 is located, and the light extraction efficiency of the light emitting unit 30 is further improved.
In an embodiment of the present application, as shown in fig. 2 and fig. 3, the display area AA further includes an index matching layer 07, and in an implementation manner of the present application, the index matching layer 07 is located on a side of the microlens layer 06 close to the light exit surface of the organic light emitting display panel. The index matching layer 07 is disposed in a stack with the microlens layer 06, and as shown in fig. 2, the index matching layer 07 may cover the microlens layer 06. The refractive index of the index matching layer 07 is different from that of the microlens layer 06, and the surface of the microlens 60 in contact with the index matching layer 07 is a curved surface, and the curved surface is convex toward one of the microlens 60 and the index matching layer 07 having a lower refractive index.
Specifically, as shown in fig. 2, when the refractive index of the microlens 60 is smaller than the refractive index of the index matching layer 07, the surface of the microlens 60 in contact with the index matching layer 07 is a curved surface that is convex toward the direction in which the microlens 60 is located, that is, the microlens 60 is a concave lens. As shown in fig. 3, when the refractive index of the index matching layer 07 is smaller than the refractive index of the microlens 60, the surface of the microlens 60 in contact with the index matching layer 07 is a curved surface that is convex toward the direction in which the index matching layer 07 is located, that is, the microlens 60 is a convex lens. The effect of the micro lens 60 and the refractive index matching layer 07 can convert the large-angle light into the small-angle light, thereby improving the light emitting efficiency of the light emitting unit 30; while avoiding color mixing problems caused by large angles of incidence to other light emitting cells 30.
As shown in fig. 2 to 4, a gap is included between adjacent microlenses 60, and an orthogonal projection of the gap between adjacent microlenses 60 on the substrate base 01 covers at least a central region of an orthogonal projection of the light emitting unit 30 on the substrate base 01. That is, in the thickness direction of the organic light emitting display panel, the gap between the adjacent microlenses 60 exposes the central region of the light emitting unit 30, i.e., the upper side around the central region of the light emitting unit 30 is not provided with the microlenses 60.
The probability that light emitted from the light emitting unit 30 closer to the central region reaches the region between the light emitting units 30 or the region where another light emitting unit 30 is located is smaller, the microlens 60 may not be disposed above the central region of the light emitting unit 30, and the arrangement of the microlens layer 06 and the refractive index matching layer 07 does not significantly change the angle of light around the central region of the light emitting unit 30, so that the light divergence at the positive viewing angle is avoided, and the display effect is not affected.
Fig. 5 is an orthographic view of another organic light emitting display panel according to an embodiment of the present disclosure. As shown in fig. 4 to 5, the organic light emitting layer 03 includes a plurality of light emitting units 30 including a first light emitting unit 30a, a second light emitting unit 30b, and a third light emitting unit 30c, and the first light emitting unit 30a, the second light emitting unit 30b, and the third light emitting unit 30c respectively emit light of different colors. The light emitting efficiency of the first light emitting unit 30a is greater than that of the second light emitting unit 30b, and the light emitting efficiency of the second light emitting unit 30b is greater than that of the third light emitting unit 30c, and then the first light emitting unit 30a may be a green light emitting unit, the second light emitting unit 30b may be a red light emitting unit, and the third light emitting unit 30c may be a blue light emitting unit.
In one embodiment of the present application, as shown in fig. 4, the overlapping widths of the first light emitting unit 30a, the second light emitting unit 30b, and the third light emitting unit 30c and the orthographic projections of the adjacent microlenses 60 on the substrate base 01 are all equal.
In one embodiment of the present application, as shown in fig. 5, an overlapping width of an orthogonal projection of the microlens 60 adjacent to the first light emitting unit 30a on the substrate base 01 and an orthogonal projection of the first light emitting unit 30a on the substrate base 01 is a first width D1, an overlapping width of an orthogonal projection of the microlens 60 adjacent to the second light emitting unit 30b on the substrate base 01 and an orthogonal projection of the second light emitting unit 30b on the substrate base 01 is a second width D2, and an overlapping width of an orthogonal projection of the microlens 60 adjacent to the third light emitting unit 30c on the substrate base 01 and an orthogonal projection of the third light emitting unit 30c on the substrate base 01 is a third width D3, D1 < D2 < D3. That is, the light emitting units 30 of different light emitting efficiencies are shielded by the adjacent microlenses 60 with different widths in the thickness direction of the organic light emitting display panel, and the light emitting units of lower light emitting efficiency are shielded by the adjacent microlenses 60 with more widths.
The embodiment of the application can realize converting partial large-angle light into small-angle light, and then realize the luminous efficiency of the luminous unit 30, and because the luminous efficiency of the luminous unit 30 of different colours is different, then can be through the wide some in order to convert more large-angle light into small-angle light that sets up with the overlapping width of the microlens 60 of luminous unit 30 border position near the top that luminous efficiency is low, and the narrow some that the overlapping width of the microlens 60 of luminous unit 30 border position near the top that sets up that will luminous efficiency is high then relatively less large-angle light converts into small-angle light, and then luminous efficiency and luminous efficiency have been balanced, make the luminance of the luminous unit 30 of different luminous efficiency roughly balanced, promote display quality.
Fig. 6 is a cross-sectional view of a display area of another organic light emitting display panel according to an embodiment of the present disclosure. In one implementation of the present embodiment, as shown in fig. 6, the microlens 60 is a symmetrical structure, wherein the symmetry axis of the microlens 60 is M0. The axis of symmetry M0 corresponding to the microlens 60 positioned between the third light emitting cell 30c and the first light emitting cell 30a or the second light emitting cell 30b is closer to the third light emitting cell 30c, and the axis of symmetry M0 corresponding to the microlens 60 positioned between the second light emitting cell 30b and the first light emitting cell 30a is closer to the second light emitting cell 30 b.
Fig. 7 is a cross-sectional view of a display area of another organic light emitting display panel according to an embodiment of the present disclosure. In another implementation of this embodiment, as shown in FIG. 7, the microlenses 60 are asymmetric in structure. However, the central axis L0 of the microlens 60 is equal to the minimum distance between the adjacent light emitting cells 30, and the central axis L0 is an axis passing through the apex of the microlens 60 and parallel to the thickness direction of the organic light emitting display panel. The microlens 60 adjacent to the first light-emitting cell 30a includes a first portion 60a, and the first portion 60a is specifically a portion of the microlens 60 adjacent to the first light-emitting cell 30a on a side of the central axis L0 close to the first light-emitting cell 30a, and an overlapping width of an orthographic projection of the first portion 60a on the substrate base plate 01 and an orthographic projection of the first light-emitting cell 30a on the substrate base plate 01 is a first width D1. The microlens 60 adjacent to the second light emitting cell 30b includes a second portion 60b, and the second portion 60b is specifically a portion of the microlens 60 adjacent to the second light emitting cell 30b, which is located on the side of the central axis L0 close to the second light emitting cell 30b, and the overlapping width of the orthographic projection of the second portion 60b on the substrate base plate 01 and the orthographic projection of the second light emitting cell 30b on the substrate base plate 01 is a second width D2. The microlens 60 adjacent to the third light emitting cell 30c includes a third portion 60c, and the third portion 60c is specifically a portion of the microlens 60 adjacent to the third light emitting cell 30c on the side of the central axis L0 close to the third light emitting cell 30c, and the overlapping width of the orthographic projection of the third portion 60c on the substrate base 01 and the orthographic projection of the third light emitting cell 30c on the substrate base 01 is a third width D3.
It should be noted that one microlens 60 is located between the light emitting cells 30 of different colors, and one microlens 60 includes different portions respectively located on both sides of the central axis L0 thereof. As shown in fig. 7, the microlens 60 positioned between the adjacent first and third light emitting cells 30a and 30c includes a first portion 60a and a third portion 60 c; the first portion 60a overlaps the first light emitting unit 30a in a thickness direction of the organic light emitting display panel, the third portion 60c overlaps the third light emitting unit 30c in the thickness direction of the organic light emitting display panel, and a first width D1 of the overlap between the first portion 60a and the first light emitting unit 30a is smaller than a third width D3 of the overlap between the third portion 60c and the third light emitting unit 30 c. The microlens 60 positioned between the adjacent second and third light emitting cells 30b and 30c includes a second portion 60b and a third portion 60 c; the second portion 60b overlaps the second light emitting unit 30b in the thickness direction of the organic light emitting display panel, the third portion 60c overlaps the third light emitting unit 30c in the thickness direction of the organic light emitting display panel, and a second width D2 of the overlap between the second portion 60b and the second light emitting unit 30b is smaller than a third width D3 of the overlap between the third portion 60c and the third light emitting unit 30 c.
Fig. 8 is a cross-sectional view of a display area of another organic light emitting display panel according to an embodiment of the present disclosure. Further, as shown in fig. 7, the heights of the respective microlenses 60 are the same, the curvature of the portion of the microlens 60 above the first light emitting cell 30a is a first curvature K1, the curvature of the portion of the microlens 60 above the second light emitting cell 30b is a second curvature K2, the curvature of the portion of the microlens 60 above the third light emitting cell 30c is a third curvature K3, and K1 < K2 < K3. That is, the curvature corresponding to the portion of the microlens 60 located in the region above the light emitting unit 30 where the light emitting efficiency is lower is larger.
The embodiment of the application can convert part of large-angle light into small-angle light, and further realize the light extraction efficiency of the light emitting units 30, but it should be understood that the small-angle light converted from some large-angle light after passing through the action of the microlenses 60 may still enter the area between the light emitting units 30 or the area where other light emitting units are located, that is, the angle of the small-angle light is still large. And because the luminous efficiency of the luminous unit 30 of different colors is different, then can be through the great some that set up the curvature of the part of the microlens 60 near the luminous unit 30 edge position above that luminous efficiency is low in order to change the light of big angle into the light of the small angle of less angle, and the relatively little that set up the curvature of the part of the microlens 60 near the luminous unit 30 edge position that will luminous efficiency is high then the angle of the light of the small angle of big angle conversion is bigger a little relatively, and then luminous efficiency and luminous efficiency have been balanced, make the luminance of the luminous unit 30 of different luminous efficiency roughly balanced, promote display quality.
Fig. 9 is a cross-sectional view of a display area of another organic light emitting display panel according to an embodiment of the present disclosure. In one embodiment of the present application, if the height of the microlens 60 between the first light emitting cell 30a and the second light emitting cell 30b is the first height H1, the height of the microlens 60 between the first light emitting cell 30a and the third light emitting cell 30b is the second height H2, and the height of the microlens 60 between the second light emitting cell 30b and the third light emitting cell 30b is the third height H3, then H1 < H2 < H3. The height of the micro lens 60 between the light emitting units 30 with higher light emitting efficiency is set to be the lowest, and the height of the micro lens 60 between the light emitting units 30 with lower light emitting efficiency is set to be the highest, so that the light emitting efficiency and the light emitting efficiency can be balanced, the heights of the light emitting units 30 with different light emitting efficiencies are approximately balanced, and the display quality is improved.
Fig. 10 is a schematic view of another organic light emitting display panel according to an embodiment of the present disclosure. In one embodiment of the present application, as shown in fig. 10, the organic light emitting display panel may include a bending region F and a non-bending region NF. It should be noted that the non-bending region NF may be located on both sides of the bending region F, as shown in fig. 10; in addition, the non-bending region NF can also be located on one side of the bending region F, and the application does not limit the relative position of the bending region NF and the bending region F, wherein the bending region F is a region which can be bent in the display panel.
In one implementation of the present embodiment, the height of the microlenses 60 and the distance between the height and the central bend line of the bending region F are inversely related, i.e., the height of the microlenses 60 that are farther from the central bend line of the bending region F is lower, and the height of the microlenses 60 that are closer to the central bend line of the bending region F is higher. Fig. 11 is a cross-sectional view of a display region of an organic light emitting display panel according to another embodiment of the present disclosure, in which the height of the microlenses 60 in the bending region F is higher than that of the microlenses 60 in the non-bending region NF, and the height of the microlenses 60 in the non-bending region NF that is closer to the bending region F is higher, and the height of the microlenses 60 in the bending region F that is closer to the central bending line is higher.
Since the deviation angle of the light from the center of the light emitting unit 30 becomes more affected by the bending angle as it is closer to the bending region F, which is equivalent to the relative increase of the large-angle light, the change of the light emitting angle due to bending can be effectively improved by setting the height of the microlens 60 closer to the bending region F higher.
In one implementation of the present embodiment, the overlapping width of the orthogonal projection of the microlens 60 on the substrate base plate 01 and the orthogonal projection of the light-emitting unit 30 on the substrate base plate 01 and the distance between the overlapping width and the central bending line of the bending region F are inversely related, that is, the overlapping width of the orthogonal projection of the microlens 60 on the substrate base plate 01 and the orthogonal projection of the light-emitting unit 30 on the substrate base plate 01, which are farther from the central bending line of the bending region F, is smaller, and the overlapping width of the orthogonal projection of the microlens 60 on the substrate base plate 01 and the orthogonal projection of the light-emitting unit 30 on the substrate base plate 01, which are closer to the central bending line of the bending region F, is larger. Fig. 12 is an orthographic view of another organic light emitting display panel according to another embodiment of the present disclosure, in which an overlapping width of the microlens 60 and the light emitting unit 30 in the bending region F is greater than an overlapping width of the microlens 60 and the light emitting unit 30 in the non-bending region NF, and the overlapping width of the microlens 60 and the light emitting unit 30 in the non-bending region NF that is closer to the bending region F is wider, and the overlapping width of the microlens 60 and the light emitting unit 30 in the bending region F that is closer to the central bending line is narrower.
Since the closer to the bending region F, the more the deviation angle of the light from the center of the light emitting unit 30 is affected by the bending angle, which is equivalent to the relative increase of the large-angle light, the wider the overlapping width of the microlens 60 and the light emitting unit 30, which are closer to the bending region F, is set, the change of the light emitting angle caused by bending can be effectively improved.
In one embodiment of the present application, the curvature of the corresponding microlens 60 is inversely related to the distance between the central bending line of the bending region F, i.e., the curvature of the corresponding microlens 60 is smaller the farther away from the central bending line of the bending region F, and the curvature of the corresponding microlens 60 is larger the closer to the central bending line of the bending region F. Fig. 13 is a cross-sectional view of a display area of another organic light emitting display panel according to another embodiment of the present disclosure, in which the curvature of the microlenses 60 in the bending region F is greater than that of the microlenses 60 in the non-bending region NF, and the curvature of the microlenses 60 in the non-bending region NF that are closer to the bending region F is greater, and the height of the microlenses 60 in the bending region F that are closer to the central bending line is greater.
Since the closer to the bending region F, the more the deviation angle of the light from the center of the light emitting unit 30 is affected by the bending angle, which is equivalent to the relative increase of the large-angle light, the larger the curvature of the microlens 60 to be closer to the bending region F is set, the change of the light emitting angle due to bending can be effectively improved.
Fig. 14 is a cross-sectional view of a display area of another organic light emitting display panel according to an embodiment of the present disclosure. In an embodiment of the present application, as shown in fig. 14, the organic light emitting display panel further includes a touch layer 05, and the touch layer 05 is located between the microlens layer 06 and the pixel defining layer 04. The touch layer 05 includes a touch electrode layer 51 and an organic protective layer 52, wherein the organic protective layer 52 is located on a side of the touch electrode layer 51 close to the microlens layer 06. The organic protective layer 52 can protect the touch electrode and provide a flat bearing surface for the microlens layer 06.
In an embodiment of the present application, as shown in fig. 2 to 3, the organic light emitting display panel further includes a touch layer 05, the touch layer 05 includes a touch electrode layer 51 and an organic protective layer 52, which are stacked, wherein the microlens layer 06 is reused with the organic protective layer 52. The organic protective layer 52 can protect the touch electrode, and the microlens layer 06 and the organic protective layer 52 are multiplexed to reduce the thickness of the organic light emitting display panel.
Fig. 15 is a cross-sectional view of an organic light emitting display panel according to an embodiment of the present disclosure. In one embodiment of the present application, as shown in fig. 15, thin-film transistor layer 02 is located between organic light-emitting layer 03 and substrate 01, and thin-film transistor layer 02 includes a plurality of inorganic layers extending from display area AA to non-display area BB. And the non-display area BB includes a filling layer 80, the filling layer 80 is disposed on a side of the inorganic layer close to the light-emitting surface of the organic light-emitting display panel, and the filling layer 80 is made of the same material as at least one of the microlens layer 06 and the refractive index matching layer 07.
In one implementation of the present application, as shown in fig. 15, the filling layer 80 includes a first filling layer 81 and a second filling layer 82 which are stacked, and the first filling layer 81 and the microlens layer 06 are made of the same material, and the second filling layer 82 and the index matching layer 07 are made of the same material. Note that the difference in filling pattern between the first filling layer 81 and the microlens layer 06 in fig. 15 is for distinguishing the difference in position, structure, and the like between the two, and is not for distinguishing the difference in material between the two; the second filling layer 82 in fig. 15 is different from the refractive index matching layer 07 in filling pattern, in order to distinguish the difference in position, structure, and the like between the two, and is not used to distinguish the difference in material between the two.
In another implementation of the present embodiment, the filling layer 80 may be the same material as the microlens layer 06 only; in yet another implementation of this embodiment, the filling layer 80 may also be the same material as the index matching layer 07 only.
Since the number of the film layers in the non-display area BB is less than that of the film layers in the display area AA, for example, the non-display area BB does not include the organic light emitting layer, and the filling layer 10 is not disposed in the non-display area BB, a step difference exists between the non-display area BB and the display area AA along the thickness direction of the organic light emitting display panel, which may result in that the continuous structure disposed in both the display area AA and the non-display area BB may not be continuous due to the step difference, for example, there may be a risk of wire breakage if the signal line needs to climb at a position between the display area AA and the non-display area BB, and/or there may be a risk of film breakage if the optical adhesive needs to climb at a position between the display area AA and the non-display area BB. By arranging the filling layer 10 in the non-display area BB, the thickness section difference caused by the fact that the film layers of the display area AA and the non-display area BB are different between the refractive index matching layer 07 or the micro-lens array layer 06 is filled up, the preparation of the subsequent film layers or the routing is facilitated, and the preparation yield can be guaranteed. In addition, the filling layer 10 in the non-display area BB is disposed in the same layer as at least one of the microlens array layer 06 and/or the index matching layer 07, so that the filling layer 10 can be disposed simultaneously with the microlens array layer 06 and/or the index matching layer 07, thereby simplifying the process flow.
In one embodiment of the present application, when the filling layer 80 includes a first filling layer 81 and a second filling layer 82 which are stacked, and the first filling layer 81 and the microlens array layer 06 are made of the same material, and the second filling layer 82 and the index matching layer 07 are made of the same material, the index of refraction of the microlens layer 06 can be set to be greater than the index of refraction of the index matching layer 07, that is, the index of refraction of the first filling layer 81 is greater than the index of refraction of the second filling layer 82. Because the light emitted from the display area AA is not absolutely collimated light, a part of the light is emitted from the display area AA to the non-display area BB, and the angle of the part of the light relative to the thickness direction of the display panel is large, and if the part of the large-angle light incident to the non-display area BB is emitted to the light emitting surface, the large-angle light firstly passes through the first filling layer 81 and then passes through the second filling layer 82, that is, the light is emitted from the optically denser medium to the optically thinner medium, so that the large-angle light is totally reflected, and the light leakage of the non-display area BB is avoided.
In one embodiment of the present application, as shown in fig. 15, when the filling layer 80 includes a first filling layer 81 and a second filling layer 82, a contact surface of the first filling layer 81 and the second filling layer 82 is an uneven surface. Further, the contact surface asperities of the first filling-up layer 81 and the second filling-up layer 82 may be substantially the same as the shape of the surface of the microlens 60 in the display area AA, so that both may be formed at the same time. By setting the contact surface of the first filling layer 81 and the second filling layer 82 to be an uneven structure, the bonding reliability of the first filling layer 81 and the second filling layer 82 can be increased; meanwhile, the path of external water and oxygen invading the display area AA from the non-display area BB can be increased, so that the corrosion of devices in the display area AA by the water and oxygen is avoided, and the reliability of the organic light-emitting display panel is ensured.
Fig. 16 is a schematic view of an organic light emitting display device according to an embodiment of the present disclosure, and as shown in fig. 16, the organic light emitting display device according to the embodiment of the present disclosure includes an organic light emitting display panel according to any one of the embodiments. The display device provided by the embodiment of the application can be a mobile phone, and in addition, the display device provided by the embodiment of the application can also be a computer, a television and other display devices. As shown in fig. 16, an organic light emitting display device provided in an embodiment of the present application includes a display area AA corresponding to an organic light emitting display panel and a non-display area BB corresponding to the organic light emitting display panel.
In an embodiment of the present application, the organic light emitting display panel included in the organic light emitting display device provided in the present application may be a curved surface structure, that is, the organic light emitting display panel is a display panel with a fixed curved surface shape, and correspondingly, the organic light emitting display device is also a display device with a fixed curved surface shape.
In an embodiment of the present application, the organic light emitting display panel included in the organic light emitting display device provided by the present application may be a flexible display panel, that is, the organic light emitting display panel may be bent into a desired shape, and correspondingly, the organic light emitting display device may be bent into the desired shape. The organic light emitting display panel is.
In the display device that this application embodiment provided, the top in the region sets up the microlens between the luminescence unit and the part of microlens and the marginal portion overlap of luminescence unit, can become the low angle light with big angle light and make the light that is located the luminescence unit edge be restricted near the luminescence unit place region, and then improve luminescence unit's luminous efficacy.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (15)
1. An organic light emitting display panel comprising a display region and a non-display region surrounding the display region; the display area includes:
a substrate base plate;
an organic light emitting layer located at one side of the substrate base plate and including a plurality of light emitting cells;
a pixel defining layer including a plurality of first openings, the light emitting unit being located within the first openings;
the micro-lens layer is positioned on one side, away from the substrate, of the pixel defining layer; the microlens layer includes a plurality of microlenses, and the microlenses are disposed between the adjacent light emitting units;
wherein the orthographic projection of the micro lens on the substrate base plate covers the orthographic projection part of the adjacent light-emitting unit on the substrate base plate.
2. The organic light-emitting display panel according to claim 1, wherein the display region further comprises an index matching layer provided in a stacked relationship with the microlens layer, the index matching layer having a different refractive index from the microlens layer;
the surface of the micro lens, which is in contact with the refractive index matching layer, is a curved surface, and the curved surface is convex towards one of the micro lens and the refractive index matching layer, which has a low refractive index.
3. The panel according to claim 2, wherein the plurality of light emitting units include a first light emitting unit, a second light emitting unit, and a third light emitting unit, wherein a light emitting efficiency of the first light emitting unit is greater than a light emitting efficiency of the second light emitting unit, and a light emitting efficiency of the second light emitting unit is greater than a light emitting efficiency of the third light emitting unit;
the overlapping width of the orthographic projection of the micro lens adjacent to the first light-emitting unit on the substrate and the orthographic projection of the first light-emitting unit on the substrate is a first width D1, the overlapping width of the orthographic projection of the micro lens adjacent to the second light-emitting unit on the substrate and the orthographic projection of the second light-emitting unit on the substrate is a second width D2, and the overlapping width of the orthographic projection of the micro lens adjacent to the third light-emitting unit on the substrate and the orthographic projection of the third light-emitting unit on the substrate is a third width D3, D1 < D2 < D3.
4. The organic light-emitting display panel according to claim 3, wherein the microlenses are of a symmetric structure.
5. The panel of claim 3, wherein the microlenses have an asymmetric structure, and a central axis of each microlens is equal to a minimum distance between adjacent light emitting units, and the central axis passes through a vertex of each microlens and is parallel to a thickness direction of the panel.
6. The organic light emitting display panel of claim 5, wherein the curvature of the portion of the microlens over the first light emitting cell is a first curvature K1, the curvature of the portion of the microlens over the second light emitting cell is a second curvature K2, and the curvature of the portion of the microlens over the third light emitting cell is a third curvature K3, K1 < K2 < K3.
7. The organic light emitting display panel according to claim 3, wherein a height of the microlens between the first light emitting unit and the second light emitting unit is a first height H1, a height of the microlens between the first light emitting unit and the third light emitting unit is a second height H2, a height of the microlens between the second light emitting unit and the third light emitting unit is a third height H3, and H1 < H2 < H3.
8. The organic light emitting display panel of claim 3, wherein the organic light emitting display panel comprises a bending region and a non-bending region, and the height of the micro-lens is inversely related to the distance between the central bending line of the bending region and the micro-lens.
9. The panel of claim 3, wherein the panel comprises a bending region and a non-bending region, and the overlapping width of the orthographic projection of the micro-lenses on the substrate and the orthographic projection of the light-emitting units on the substrate is inversely related to the distance between the overlapping width and the central bending line of the bending region.
10. The panel of claim 3, wherein the panel comprises a bending region and a non-bending region, and wherein the curvature of the portion of the microlens over the region of the light-emitting unit is inversely related to the distance from the central bending line of the bending region.
11. The organic light-emitting display panel according to claim 3, further comprising a touch layer between the microlens layer and the pixel defining layer.
12. The organic light-emitting display panel according to claim 3, further comprising a touch layer, wherein the touch layer comprises a touch electrode layer and an organic protective layer, and the microlens layer and the organic protective layer are multiplexed.
13. The organic light-emitting display panel of claim 3, further comprising a thin-film transistor layer between the organic light-emitting layer and the substrate; the thin-film transistor layer comprises a plurality of inorganic layers, and the inorganic layers extend from the display area to the non-display area;
the non-display area comprises a filling layer, and the filling layer is arranged on one side of the inorganic layer close to the light-emitting surface of the organic light-emitting display panel; the fill layer is the same material as at least one of the microlens layer and the index matching layer.
14. The organic light-emitting display panel according to claim 1, wherein a gap is included between adjacent microlenses, and an orthogonal projection of the gap on the substrate base plate covers at least a central region of an orthogonal projection of the light-emitting unit on the substrate base plate.
15. An organic light emitting display device comprising the organic light emitting display panel according to any one of claims 1 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010789985.6A CN111883684B (en) | 2020-08-07 | 2020-08-07 | Organic light-emitting display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010789985.6A CN111883684B (en) | 2020-08-07 | 2020-08-07 | Organic light-emitting display panel and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111883684A true CN111883684A (en) | 2020-11-03 |
| CN111883684B CN111883684B (en) | 2022-08-12 |
Family
ID=73211306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010789985.6A Active CN111883684B (en) | 2020-08-07 | 2020-08-07 | Organic light-emitting display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111883684B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113066395A (en) * | 2021-03-30 | 2021-07-02 | 錼创显示科技股份有限公司 | Miniature light emitting diode display device |
| CN113097278A (en) * | 2021-03-31 | 2021-07-09 | 武汉天马微电子有限公司 | Display panel and display device |
| CN113394351A (en) * | 2021-06-11 | 2021-09-14 | 武汉天马微电子有限公司 | Display panel and display device |
| CN113707826A (en) * | 2021-08-25 | 2021-11-26 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
| CN113725385A (en) * | 2021-09-01 | 2021-11-30 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
| CN114141969A (en) * | 2021-11-29 | 2022-03-04 | 京东方科技集团股份有限公司 | Display substrate and display device |
| CN114335388A (en) * | 2021-12-30 | 2022-04-12 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
| WO2022246874A1 (en) * | 2021-05-24 | 2022-12-01 | 武汉华星光电半导体显示技术有限公司 | Display panel and electronic device |
| CN115440913A (en) * | 2022-08-24 | 2022-12-06 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| WO2024060783A1 (en) * | 2022-09-21 | 2024-03-28 | Huawei Technologies Co., Ltd. | Organic electroluminescent device and organic electroluminescent display |
| US11978398B2 (en) * | 2021-12-30 | 2024-05-07 | Lg Display Co., Ltd. | Viewing angle switchable display device |
| US12004372B2 (en) | 2021-04-21 | 2024-06-04 | Hubei Yangtze Industrial Innovation Center of Advanced Display Co., Ltd. | Display panel and display device |
| US12009461B2 (en) | 2021-03-30 | 2024-06-11 | PlayNitride Display Co., Ltd. | Micro LED display device including refraction structure |
| WO2024119320A1 (en) * | 2022-12-05 | 2024-06-13 | 京东方科技集团股份有限公司 | Display module and production method therefor, and display device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120175648A1 (en) * | 2009-10-15 | 2012-07-12 | Panasonic Corporation | Display panel device, display device, and method of manufacturing display panel device |
| US20160043145A1 (en) * | 2014-08-05 | 2016-02-11 | Samsung Display Co., Ltd. | Organic light-emitting diode (oled) display and method of manufacturing the same |
| US20160064694A1 (en) * | 2014-09-01 | 2016-03-03 | Samsung Display Co., Ltd. | Organic light-emitting diode (oled) display |
| US20190221779A1 (en) * | 2018-01-12 | 2019-07-18 | Samsung Display Co., Ltd. | Display device |
| US20200066804A1 (en) * | 2018-08-22 | 2020-02-27 | Samsung Display Co., Ltd. | Display device and method of manufacturing display device |
| CN111276515A (en) * | 2020-02-07 | 2020-06-12 | 武汉华星光电半导体显示技术有限公司 | OLED display panel and preparation method thereof |
| CN111427183A (en) * | 2020-04-29 | 2020-07-17 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
-
2020
- 2020-08-07 CN CN202010789985.6A patent/CN111883684B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120175648A1 (en) * | 2009-10-15 | 2012-07-12 | Panasonic Corporation | Display panel device, display device, and method of manufacturing display panel device |
| US20160043145A1 (en) * | 2014-08-05 | 2016-02-11 | Samsung Display Co., Ltd. | Organic light-emitting diode (oled) display and method of manufacturing the same |
| US20160064694A1 (en) * | 2014-09-01 | 2016-03-03 | Samsung Display Co., Ltd. | Organic light-emitting diode (oled) display |
| US20190221779A1 (en) * | 2018-01-12 | 2019-07-18 | Samsung Display Co., Ltd. | Display device |
| US20200066804A1 (en) * | 2018-08-22 | 2020-02-27 | Samsung Display Co., Ltd. | Display device and method of manufacturing display device |
| CN111276515A (en) * | 2020-02-07 | 2020-06-12 | 武汉华星光电半导体显示技术有限公司 | OLED display panel and preparation method thereof |
| CN111427183A (en) * | 2020-04-29 | 2020-07-17 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113066395A (en) * | 2021-03-30 | 2021-07-02 | 錼创显示科技股份有限公司 | Miniature light emitting diode display device |
| US12009461B2 (en) | 2021-03-30 | 2024-06-11 | PlayNitride Display Co., Ltd. | Micro LED display device including refraction structure |
| CN113097278A (en) * | 2021-03-31 | 2021-07-09 | 武汉天马微电子有限公司 | Display panel and display device |
| CN113097278B (en) * | 2021-03-31 | 2022-06-07 | 武汉天马微电子有限公司 | Display panel and display device |
| US12004372B2 (en) | 2021-04-21 | 2024-06-04 | Hubei Yangtze Industrial Innovation Center of Advanced Display Co., Ltd. | Display panel and display device |
| WO2022246874A1 (en) * | 2021-05-24 | 2022-12-01 | 武汉华星光电半导体显示技术有限公司 | Display panel and electronic device |
| CN113394351A (en) * | 2021-06-11 | 2021-09-14 | 武汉天马微电子有限公司 | Display panel and display device |
| CN113707826B (en) * | 2021-08-25 | 2024-03-29 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
| CN113707826A (en) * | 2021-08-25 | 2021-11-26 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
| CN113725385A (en) * | 2021-09-01 | 2021-11-30 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
| CN113725385B (en) * | 2021-09-01 | 2023-10-24 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
| CN114141969A (en) * | 2021-11-29 | 2022-03-04 | 京东方科技集团股份有限公司 | Display substrate and display device |
| CN114335388B (en) * | 2021-12-30 | 2024-04-05 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
| US11978398B2 (en) * | 2021-12-30 | 2024-05-07 | Lg Display Co., Ltd. | Viewing angle switchable display device |
| CN114335388A (en) * | 2021-12-30 | 2022-04-12 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
| CN115440913B (en) * | 2022-08-24 | 2023-09-08 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN115440913A (en) * | 2022-08-24 | 2022-12-06 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| WO2024060783A1 (en) * | 2022-09-21 | 2024-03-28 | Huawei Technologies Co., Ltd. | Organic electroluminescent device and organic electroluminescent display |
| WO2024119320A1 (en) * | 2022-12-05 | 2024-06-13 | 京东方科技集团股份有限公司 | Display module and production method therefor, and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111883684B (en) | 2022-08-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111883684B (en) | Organic light-emitting display panel and display device | |
| JP6612380B2 (en) | Organic light-emitting display device and method for manufacturing the same | |
| US11314103B2 (en) | Autostereoscopic display device | |
| CN111834545B (en) | Display panel and display device | |
| CN111697037B (en) | Organic light-emitting display panel and display device | |
| CN111599850A (en) | Organic light-emitting display panel, preparation method thereof and display device | |
| EP3301736B1 (en) | Organic light emitting diode display device | |
| KR20160080834A (en) | Organic light emitting display device and method of manufacturing the same | |
| KR101766714B1 (en) | Organic light emitting display device | |
| CN113078193B (en) | Display panel and display device | |
| US20210288294A1 (en) | Display panel and display device | |
| US11264597B2 (en) | Multiple QD-LED sub-pixels for high on-axis brightness and low colour shift | |
| WO2024093413A1 (en) | Display panel and display device | |
| CN219981443U (en) | Display panel and display device | |
| US20240215311A1 (en) | Display substrate and display device | |
| KR101802778B1 (en) | Organic light emitting display device | |
| CN114967203A (en) | Display panel and display device | |
| CN115440913B (en) | Display panel and display device | |
| CN113555516B (en) | Packaging cover plate, display panel and display device | |
| CN116435296B (en) | Display panel, preparation method thereof and display device | |
| EP4016657B1 (en) | Light emitting display apparatus | |
| US12035573B2 (en) | Organic light-emitting display panel and organic light-emitting display device including sub-microlenses | |
| CN111477652B (en) | Micro light emitting device display device | |
| US20230056073A1 (en) | Optical device | |
| CN116801679A (en) | Display panel, manufacturing method of display panel and display device |
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 |