CN116744748A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
- Publication number
- CN116744748A CN116744748A CN202310897046.7A CN202310897046A CN116744748A CN 116744748 A CN116744748 A CN 116744748A CN 202310897046 A CN202310897046 A CN 202310897046A CN 116744748 A CN116744748 A CN 116744748A
- Authority
- CN
- China
- Prior art keywords
- light
- micro
- area
- display panel
- region
- 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.)
- Pending
Links
- 239000002086 nanomaterial Substances 0.000 claims abstract description 132
- 238000004806 packaging method and process Methods 0.000 claims abstract description 57
- 230000003287 optical effect Effects 0.000 claims abstract description 42
- 239000000758 substrate Substances 0.000 claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 239000011159 matrix material Substances 0.000 claims abstract description 16
- 230000001965 increasing effect Effects 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000002310 reflectometry Methods 0.000 abstract description 10
- 239000010410 layer Substances 0.000 description 114
- 238000005538 encapsulation Methods 0.000 description 34
- 238000005516 engineering process Methods 0.000 description 9
- 230000008859 change Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000028161 membrane depolarization Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/8791—Arrangements for improving contrast, e.g. preventing reflection of ambient light
- H10K59/8792—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. black 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
-
- 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
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
Landscapes
- Electroluminescent Light Sources (AREA)
Abstract
The embodiment of the invention provides a display panel and a display device, relates to the field of display, and aims to weaken the reflectivity difference between an optical component area and a conventional display area. The display panel includes: a display region including a first display region and an optical component region; a substrate; a light emitting device layer located on one side of the substrate; the packaging layer is positioned on one side of the light-emitting device layer, which is opposite to the substrate, and comprises a first packaging layer; the optical filter layer is positioned at one side of the packaging layer, which is opposite to the substrate, and comprises a black matrix and a color resistor, wherein the black matrix is used for limiting a light transmission area, a shielding area and a light emergent area, the light emergent area is positioned in the first display area and the optical component area, the shielding area is positioned in the first display area and the optical component area, the light transmission area is positioned in the optical component area, and the color resistor is at least positioned in the light emergent area; the micro-nano structure is positioned in the light transmission area and is positioned at one side of the first packaging layer, which is away from the substrate.
Description
[ field of technology ]
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
[ background Art ]
Currently, in pursuit of higher screen duty cycle and lower power consumption, under-screen camera (Camera Under Panel, CUP) technology and depolarization (POL Less) technology have been developed. However, in the existing display panel to which the above technology is applied, there is a significant difference in reflectivity between the conventional display area and the optical member area for setting the camera, thereby resulting in poor visual effect.
[ invention ]
In view of the above, the embodiments of the present invention provide a display panel and a display device for effectively weakening the reflectivity difference between the optical component area and the conventional display area.
In one aspect, an embodiment of the present invention provides a display panel, including:
a display region including a first display region and an optical component region;
a substrate;
a light emitting device layer located on one side of the substrate;
the packaging layer is positioned on one side of the light-emitting device layer, which is opposite to the substrate, and comprises a first packaging layer;
the optical filter layer is positioned on one side of the packaging layer, which is opposite to the substrate, and comprises a black matrix and a color resistor, wherein the black matrix is used for limiting a light transmission area, a shielding area and a light emergent area, the light emergent area is positioned in the first display area and the optical component area, the shielding area is positioned in the first display area and the optical component area, the light transmission area is positioned in the optical component area, and the color resistor is at least positioned in the light emergent area;
the micro-nano structure is positioned in the light transmission area and on one side of the first packaging layer, which is away from the substrate
On the other hand, based on the same inventive concept, an embodiment of the present invention provides a display device including the above display panel.
One of the above technical solutions has the following beneficial effects:
according to the embodiment of the invention, the micro-nano structure is arranged at the position of one side of the first packaging layer corresponding to the light transmission area, and the characteristic dimension of the micro-nano structure is small, for example, smaller than the wavelength of visible light, so that the micro-nano structure has the characteristic of gradual change of the refractive index of the micro-nano structure like a moth eye, therefore, the micro-nano structure can play a role in reducing reflection and increasing reflection of ambient light injected through the light transmission area, the reflection degree of the light transmission area on the ambient light is reduced, the problem that the light transmission area and the shielding area have reflection difference due to the fact that a black matrix is not arranged in the light transmission area can be effectively solved, the difference of the reflectivity of the optical component area and the first display area is weakened, and the visual effect is improved.
Moreover, unlike the principle of black matrix light absorption, the micro-nano structure does not absorb ambient light but transmits the ambient light when the micro-nano structure plays a role of antireflection on the ambient light, and the micro-nano structure is generally made of a light-transmitting material, so that the technical scheme provided by the embodiment of the invention can weaken the reflectivity difference between the optical component area and the first display area, obviously increase the transmittance of the optical component area and ensure that the imaging effect of the display panel is better.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed 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 invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic top view of a display panel according to an embodiment of the invention;
fig. 2 is a cross-sectional view of a display panel according to an embodiment of the present invention;
fig. 3 is another cross-sectional view of a display panel according to an embodiment of the present invention;
fig. 4 is a further cross-sectional view of a display panel according to an embodiment of the present invention;
fig. 5 is a further cross-sectional view of a display panel according to an embodiment of the present invention;
fig. 6 is a further cross-sectional view of a display panel according to an embodiment of the present invention;
FIG. 7 is a top view of a display panel according to an embodiment of the invention;
fig. 8 is a further cross-sectional view of a display panel according to an embodiment of the present invention;
fig. 9 is a further cross-sectional view of a display panel according to an embodiment of the present invention;
FIG. 10 is a top view of a display panel according to an embodiment of the present invention;
fig. 11 is a further cross-sectional view of a display panel according to an embodiment of the present invention;
fig. 12 is a further cross-sectional view of a display panel according to an embodiment of the present invention;
fig. 13 is a further cross-sectional view of a display panel according to an embodiment of the present invention;
fig. 14 is a further cross-sectional view of a display panel according to an embodiment of the present invention;
fig. 15 is a further cross-sectional view of a display panel according to an embodiment of the present invention;
fig. 16 is a further cross-sectional view of a display panel according to an embodiment of the present invention;
fig. 17 is a further cross-sectional view of a display panel according to an embodiment of the present invention;
fig. 18 is a further cross-sectional view of a display panel according to an embodiment of the present invention;
fig. 19 is a further cross-sectional view of a display panel according to an embodiment of the present invention;
fig. 20 is a further cross-sectional view of a display panel according to an embodiment of the present invention;
fig. 21 is a schematic structural diagram of a display device according to an embodiment of the invention.
[ detailed description ] of the invention
For a better understanding of the technical solution of the present invention, the following detailed description of the embodiments of the present invention refers to the accompanying drawings.
It should be understood that the described embodiments are merely some, but not all, embodiments of the invention. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Accordingly, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims (the claims) and their equivalents. The embodiments provided by the embodiments of the present invention may be combined with each other without contradiction.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in 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 relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
As described in the background art, the existing display panel mostly adopts the under-screen camera technology and the depolarizer technology to increase the screen occupation ratio and reduce the power consumption. The under-screen camera technology is that an optical component area with display and light transmission performance is arranged in a display area, and optical components such as a camera are arranged in the optical component area and on the backlight side of a display panel. The depolarization technology is to replace the traditional polaroid with a filter layer, wherein the filter layer comprises a color resistor and a black matrix, the color resistor is used for transmitting light with the same color as the color of the filter layer and filtering light with different colors from the filter layer, and the black matrix is used for carrying out shading and avoiding light leakage.
However, the inventor has found in the research process that the light-transmitting area needs to be disposed in the optical component area of the display panel to ensure the transmittance, and correspondingly, the black matrix needs to be hollowed out at the light-transmitting area to avoid shielding the light-transmitting area. However, when the ambient light is transmitted through the transparent region, most of the ambient light is directly transmitted to the encapsulation layer inward due to no shielding of the black matrix. Since the packaging layer comprises the inorganic packaging layer and the organic packaging layer which are alternately stacked, the inorganic packaging layer and the organic packaging layer have obvious refractive index difference, and therefore, after the ambient light is transmitted to the packaging layer, obvious reflection occurs at the interface between the inorganic packaging layer and the organic packaging layer, and the reflectivity of the optical component area is obviously higher than that of a conventional display area. For example, in some existing display panels, the reflectivity of the optical component area is nearly 4.5% higher than that of the conventional display area, severely affecting the visual effect.
In view of the above, the embodiment of the invention provides a display panel, which can effectively improve the reflectivity difference between an optical component area and a conventional display area based on the structural design of the display panel.
As shown in fig. 1, fig. 1 is a schematic top view of a display panel according to an embodiment of the present invention, where the display panel includes a display area 1, the display area 1 includes a first display area 2 and an optical component area 3, where the first display area 2 is a conventional display area, and optical components such as a camera are correspondingly disposed at the optical component area 3. In the embodiment of the present invention, the display area 1 may include one, two or more optical component areas 3, and the shape of the optical component area 3 may be any shape such as square, circular, oval, etc., which is not particularly limited in the embodiment of the present invention.
As shown in fig. 2, fig. 2 is a cross-sectional view of a display panel according to an embodiment of the present invention, where the display panel further includes a substrate 4, a light emitting device layer 5, an encapsulation layer 6, a filter layer 7, and a micro-nano structure 8.
Wherein the light emitting device layer 5 is located on the substrate 4 side, the light emitting device layer 5 comprises a pixel defining layer 9 and a plurality of light emitting elements 10, the light emitting elements 10 comprise an anode 11, a light emitting layer 12 and a cathode 13, and the light emitting layer 12 is located in an opening of the pixel defining layer 9.
The encapsulation layer 6 is located on a side of the light emitting device layer 5 facing away from the substrate 4, and is used for protecting and encapsulating the display panel, and the encapsulation layer 6 includes a first encapsulation layer 14.
The filter layer 7 is located at a side of the encapsulation layer 6 facing away from the substrate 4, the filter layer 7 includes a black matrix 15 and a color resistor 16, wherein the black matrix 15 is used for defining a light transmitting area 17, a shielding area 18 and a light emitting area 19, the light emitting area 19 is located in the first display area 2 and the optical component area 3, corresponds to an opening of the pixel defining layer 9 and can also be understood as an opening area of a sub-pixel, the shielding area 18 is located in the first display area 2 and the optical component area 3 and can also be understood as a non-light transmitting area 17, the light transmitting area 17 is located in the optical component area 3, the transmittance of the light transmitting area 17 is higher than that of the light emitting area 19 and the shielding area 18, and ambient light is transmitted through the light transmitting area 17 to enter the camera so as to enable the camera to collect ambient light. The color resistor 16 is at least located in the light emitting region 19, and the color of the color resistor 16 is the same as the light emitting color of the light emitting element 10 corresponding to the color resistor.
The micro-nano structure 8 is located in the light-transmitting region 17 and on the side of the first encapsulation layer 14 facing away from the substrate 4.
In the embodiment of the invention, the micro-nano structure 8 is arranged at the position of one side of the first packaging layer 14 corresponding to the light-transmitting area 17, and the characteristic dimension of the micro-nano structure 8 is small, for example, smaller than the wavelength of visible light, so that the micro-nano structure 8 has the characteristic of gradual change of the refractive index of the micro-nano structure like a moth eye, therefore, the micro-nano structure 8 can play a role in reducing reflection and increasing reflection of the ambient light entering through the light-transmitting area 17, reduce the reflection degree of the light-transmitting area 17 on the ambient light, further effectively solve the problem that the light-transmitting area 17 and the shielding area 18 have reflection difference due to the fact that the black matrix 15 is not arranged in the light-transmitting area 17, effectively weaken the difference of the reflectivity of the optical component area 3 and the first display area 2, and improve the visual effect.
Moreover, unlike the principle of black matrix light absorption, the micro-nano structure 8 does not absorb ambient light but transmits the ambient light when the micro-nano structure plays a role of antireflection on the ambient light, and the micro-nano structure 8 is generally made of a light-transmitting material, so that the technical scheme provided by the embodiment of the invention not only can weaken the reflectivity difference between the optical component area 3 and the first display area 2, but also can obviously increase the transmittance of the optical component area 3, so that the imaging effect of the display panel is better.
It will be appreciated that referring again to fig. 2, the display panel may further include an array layer 20, the array layer 20 being located between the substrate 4 and the light emitting device layer 5, the array layer 20 including pixel circuits (not illustrated) and various signal lines (not illustrated).
In a possible implementation manner, as shown in fig. 3, fig. 3 is another cross-sectional view of a display panel provided by an embodiment of the present invention, where a height h of a micro-nano structure 8 is less than 200nm, and a distance d between adjacent micro-nano structures 8 in a light-transmitting area 17 is less than 400nm, where the height of the micro-nano structure 8 in the embodiment of the present invention refers to a height of the micro-nano structure 8 in a direction perpendicular to a plane of a substrate 4.
The characteristic dimension of the micro-nano structure 8 under the structural design is obviously smaller than the wavelength of visible light, and the micro-nano structure 8 can play a better role in reflection and reflection reduction for ambient light.
In a possible embodiment, referring to fig. 4 and 5, the display panel further comprises a first film layer 21, the first film layer 21 covering the micro-nano structure 8, i.e. the micro-nano structure 8 is located between the first film layer 21 and the first encapsulation layer 14, the micro-nano structure 8 being in contact with the first film layer 21 and the first encapsulation layer 14, respectively. The refractive index of the micro-nano structure 8 is between the refractive index of the first film layer 21 and the refractive index of the first encapsulation layer 14.
It should be noted that, since the micro-nano structure 8 itself has the characteristic of graded refractive index, the refractive index of the micro-nano structure 8 is understood to be a refractive index range, and the refractive index of the micro-nano structure 8 being between the refractive index of the first film layer 21 and the refractive index of the first encapsulation layer 14 means that the refractive index of the micro-nano structure 8 itself is between the refractive index of the first film layer 21 and the refractive index of the first encapsulation layer 14.
When the refractive index of the micro-nano structure 8 is between the refractive index of the first film layer 21 and the refractive index of the first packaging layer 14, the refractive indexes of the first film layer 21, the micro-nano structure 8 and the first packaging layer 14 can be changed in a gradient from top to bottom. So arranged, the refractive index difference between the first film layer 21 and the micro-nano structure 8 is very small, and the refractive index difference between the micro-nano structure 8 and the first packaging layer 14 is also very small, so that the reflection of ambient light at the interface between the first film layer 21 and the micro-nano structure 8 and the reflection of ambient light at the interface between the micro-nano structure 8 and the first packaging layer 14 can be obviously reduced, and the reflection difference of the optical component area 3 and the first display area 2 on the ambient light can be weakened to a greater extent.
In a possible implementation manner, as shown in fig. 4, fig. 4 is a further cross-sectional view of a display panel provided by an embodiment of the present invention, the encapsulation layer 6 includes a first inorganic encapsulation layer 23, an organic encapsulation layer 24 and a second inorganic encapsulation layer 25 stacked along a direction away from the substrate 4, the first encapsulation layer 14 includes the second inorganic encapsulation layer 25, where the first film layer 21 includes the glue layer 22, and the refractive index of the micro-nano structure 8 is between the refractive index of the glue layer 22 and the refractive index of the second inorganic encapsulation layer 25.
The micro-nano structure 8 is arranged on the surface of the whole packaging layer 6, which is far away from one side of the substrate 4, at the moment, the micro-nano structure 8 is close to the light-emitting surface of the display panel, when ambient light enters through the light-transmitting area 17, the ambient light is acted by the micro-nano structure 8 when reaching the packaging layer 6, and the reflection of the ambient light on the interface between the adhesive layer 22 and the second inorganic packaging layer 22 is obviously reduced. Moreover, the thickness of the adhesive layer 22 is generally larger, so when the micro-nano structure 8 is disposed on the surface of the second packaging layer 6, the micro-nano structure 8 hardly causes the surface of the adhesive layer 22 to generate undulation, thereby further helping to optimize the flatness of the film layer.
In a possible implementation, as shown in fig. 5, fig. 5 is a further cross-sectional view of a display panel provided by an embodiment of the present invention, where the encapsulation layer 6 includes a first inorganic encapsulation layer 23, an organic encapsulation layer 24, and a second inorganic encapsulation layer 25 stacked in a direction away from the substrate 4, and the first encapsulation layer 14 includes the first inorganic encapsulation layer 23. At this time, the first film layer 21 includes the organic encapsulation layer 24, and the refractive index of the micro-nano structure 8 is between the refractive index of the organic encapsulation layer 24 and the refractive index of the first inorganic encapsulation layer 23.
In this arrangement, the micro-nano structure 8 is disposed on the surface of the first inorganic packaging layer 23, which is far away from the substrate 4, and ambient light is acted on by the micro-nano structure 8 when the ambient light is transmitted from the organic packaging layer 24 to the first inorganic packaging layer 23, so that reflection of the ambient light on the interface between the organic packaging layer 24 and the first inorganic packaging layer 23 can be effectively reduced. Moreover, the thickness of the organic encapsulation layer 24 is generally much greater than that of the inorganic encapsulation layer, so that when the micro-nano structure 8 is disposed on the surface of the second encapsulation layer 6, the micro-nano structure 8 hardly causes undulation on the surface of the organic encapsulation layer 24, thereby also helping to optimize the flatness of the film layer.
Furthermore, in alternative embodiments of the present invention, the micro-nano structure 8 may also be located on the side of the first inorganic encapsulation layer 23 and the second inorganic encapsulation layer 25 facing away from the substrate 4. Specifically, as shown in fig. 6, fig. 6 is a cross-sectional view of a display panel provided by the embodiment of the present invention, the first packaging layer 14 includes a first inorganic packaging layer 23 and a second inorganic packaging layer 25, the micro-nano structure 8 includes a first micro-nano structure 26 and a second micro-nano structure 27, the first micro-nano structure 26 is located on a side of the first inorganic packaging layer 23 facing away from the substrate 4, the second micro-nano structure 27 is located on a side of the second inorganic packaging layer 25 facing away from the substrate 4, the first film layer 21 includes an organic packaging layer 24 and a glue layer 22, wherein a refractive index of the first micro-nano structure 26 may be between a refractive index of the organic packaging layer 24 and a refractive index of the first inorganic packaging layer 23, and a refractive index of the second micro-nano structure 27 may be between a refractive index of the glue layer 22 and a refractive index of the second inorganic packaging layer 25. When the micro-nano structure 8 includes the first micro-nano structure 26 and the second micro-nano structure 27, referring to fig. 6, the arrangement of the second micro-nano structure 27 and the arrangement of the first micro-nano structure 26 may be designed to be identical, that is, the second micro-nano structure 27 coincides with the first micro-nano structure 26 in the direction perpendicular to the plane of the substrate 4, so as to achieve the target effect better.
In a possible implementation manner, as shown in fig. 7 to 9, fig. 7 is another top view of a display panel provided by an embodiment of the present invention, fig. 8 is yet another cross-sectional view of a display panel provided by an embodiment of the present invention, and fig. 9 is yet another cross-sectional view of a display panel provided by an embodiment of the present invention, where the color resists 16 include a first color resist 28, a second color resist 29 and a third color resist 30, the first color resist 28 is used for transmitting the first color light, the second color resist 29 is used for transmitting the second color light, and the third color resist 30 is used for transmitting the third color light.
The light-transmitting region 17 includes a first light-transmitting region 31, one side of the first light-transmitting region 31 being adjacent to the first color resist 28, and the other side of the first light-transmitting region 31 being adjacent to the second color resist 29 or the third color resist 30.
The first light-transmitting region 31 comprises a first sub-region 32 and a second sub-region 33, the first sub-region 32 being adjacent to the first color resist 28, wherein the spacing between adjacent micro-nano structures 8 in the first sub-region 32 is smaller than the spacing between adjacent micro-nano structures 8 in the second sub-region 33, and/or the height of the micro-nano structures 8 in the first sub-region 32 is larger than the height of the micro-nano structures 8 in the second sub-region 33.
It will be appreciated that the smaller the spacing between adjacent micro-nano structures 8, the denser the arrangement of micro-nano structures 8, and the greater the degree to which micro-nano structures 8 are reflective to ambient light. The greater the height of the micro-nano structure 8, the greater the degree to which the micro-nano structure 8 is reflective to ambient light. In the embodiment of the invention, the hue of the reflected ambient light can be adjusted by adjusting the distance and the height of the micro-nano structures 8 in different areas.
Specifically, the ambient light is converted into the first color ambient light after being injected through the first color resistor 28, part of the first color ambient light is obliquely incident into the adjacent first sub-region 32, and based on the arrangement and the size design of the microstructures 8 in the first sub-region 32, the micro-nano structures 8 perform greater reflection reduction on the injected first color ambient light, so that only a small amount of the first color ambient light can be reflected, and the component of the first color ambient light in the reflected ambient light can be reduced, thereby adjusting the hue of the reflected ambient light.
Based on such design concept, in the embodiment of the present invention, the components of different colors of reflected ambient light may be tested in advance based on the conventional display panel, and the first color may be set by determining whether the reflected ambient light is red, green or blue.
For example, when the red component in the reflected ambient light is pre-tested to be more red based on the conventional display panel, the first color may be set to red, that is, the first color resistor 28 is the red color resistor 16, one of the second color resistor 29 and the third color resistor 30 is the blue color resistor 16, and the other is the green color resistor 16. In this way, the micro-nano structure 8 in the first partition 32 can be used to significantly reduce the reflection of red light, so as to reduce the red light component in the reflected ambient light, and balance the red light component, the green light component and the blue light component in the reflected ambient light, and at this time, the reflected ambient light tends to be white light, which is helpful for improving the display consistency of the optical component area 3 and the first display area 2.
When the green component in the reflected ambient light is more abundant based on the conventional display panel, the first color may be set to be green, that is, the first color resistor 28 is the green resistor 16, one of the second color resistor 29 and the third color resistor 30 is the blue resistor 16, and the other is the red resistor 16. This allows the micro-nano structures 8 in the first partition 32 to significantly reduce the reflection of green light, thereby reducing the green light component of the reflected ambient light and balancing the red, green and blue light components of the reflected ambient light.
When the blue component in the reflected ambient light is more than the blue component, the first color may be set to blue, i.e. the first color resistor 28 is the blue resistor 16, one of the second color resistor 29 and the third color resistor 30 is the green resistor 16, and the other is the red resistor 16. Thus, the micro-nano structure 8 in the first partition 32 can be used to significantly reduce the reflection of blue light, so as to reduce the blue light component in the reflected ambient light, and balance the red light, green light and blue light components in the reflected ambient light.
Further, referring again to fig. 8, when the spacing between adjacent micro-nano structures 8 in the first sub-region 32 is larger than the spacing between adjacent micro-nano structures 8 in the second sub-region 33, in order to simplify the arrangement design of the micro-nano structures 8 in the different sub-regions, the spacing between adjacent micro-nano structures 8 in the first sub-region 32 may be set to be equal, and the spacing between adjacent micro-nano structures 8 in the second sub-region 33 may be set to be equal. That is, the micro-nano structure 8 in the first sub-region 32 has a first duty cycle, and the micro-nano structure 8 in the second sub-region 33 has a second duty cycle, the first duty cycle being greater than the second duty cycle.
And/or, referring again to fig. 9, when the height of the micro-nano structure 8 in the first sub-region 32 is greater than the height of the micro-nano structure 8 in the second sub-region 33, the heights of the micro-nano structures 8 in the first sub-region 32 and the heights of the micro-nano structures 8 in the second sub-region 33 may be set equal in order to simplify the sizing of the micro-nano structures 8 in the different sub-regions.
Alternatively, as shown in fig. 10 to 12, fig. 10 is a top view of a display panel according to an embodiment of the present invention, fig. 11 is a cross-sectional view of a display panel according to an embodiment of the present invention, and fig. 12 is a cross-sectional view of a display panel according to an embodiment of the present invention, in which, in the first light-transmitting region 31, the distance between micro-nano structures 8 increases and/or the height of the micro-nano structures 8 decreases along the direction in which the adjacent first color resist 28 points to the adjacent second color resist 29 or third color resist 30.
Taking the first color as red as an example, when the red light component in the reflected ambient light is tested to be more based on the traditional display panel, the green light component and/or the blue light component is correspondingly less, when the micro-nano structure 8 in the first light transmission area 31 adopts a space gradual change and/or height gradual change design, the micro-nano structure 8 is utilized to play a role in reducing the reflection of the red light to a greater degree, meanwhile, the green light component and/or the blue light component can be reflected to a slightly greater degree, the green light component and/or the blue light component in the reflected ambient light component is increased, and the red light component, the green light component and the blue light component can be balanced more easily.
In a possible implementation, as shown in fig. 13 and 14 in conjunction with fig. 7, fig. 13 is a further cross-sectional view of a display panel provided by an embodiment of the present invention, and fig. 14 is a further cross-sectional view of a display panel provided by an embodiment of the present invention, where the color resists 16 include a first color resist 28, a second color resist 29, and a third color resist 30.
The light-transmitting region 17 comprises a second light-transmitting region 34 and a third light-transmitting region 35, both sides of the second light-transmitting region 34 are adjacent to the first color resist 28, the third light-transmitting region 35 is not adjacent to the first color resist 28, wherein the spacing between adjacent micro-nano structures 8 in the second light-transmitting region 34 is smaller than the spacing between adjacent micro-nano structures 8 in the third light-transmitting region 35, and/or the height of the micro-nano structures 8 in the second light-transmitting region 34 is larger than the height of the micro-nano structures 8 in the third light-transmitting region 35.
Similar to the above analysis, after the pitch and the height of the micro-nano structures 8 in the second light-transmitting region 34 are adjusted, the reflection of the ambient light with the first color can be reduced to a greater extent, so as to reduce the component of the ambient light with the first color in the reflected ambient light, and further realize the adjustment of the hue of the reflected ambient light.
In a possible embodiment, the micro-nano structure 8 has a first cross section 36 perpendicular to the substrate 4, the width of the first cross section 36 of at least part of the micro-nano structure 8 decreases in the direction of the substrate 4 towards the filter layer 7, and/or the width of the first cross section 36 of at least part of the micro-nano structure 8 is equal.
As the width of the first section 36 decreases in the micro-nano structure 8, in one arrangement, referring again to fig. 4 and 5, the first section 36 may be triangular, in which case the micro-nano structure 8 is a cone structure. Alternatively, in another arrangement, as shown in fig. 15 and 16, fig. 15 is a further cross-sectional view of the display panel provided by the embodiment of the present invention, and fig. 16 is a further cross-sectional view of the display panel provided by the embodiment of the present invention, where the first cross-section 36 may be a trapezoid, and the micro-nano structure 8 is a trapezoid structure. In still another arrangement, as shown in fig. 17 and fig. 18, fig. 17 is a further cross-sectional view of a display panel provided by an embodiment of the present invention, and fig. 18 is a further cross-sectional view of a display panel provided by an embodiment of the present invention, where the first cross-section 36 may also be semi-elliptical.
When the widths of the first sections 36 in the micro-nano structure 8 are equal, in one arrangement, as shown in fig. 19 and fig. 20, fig. 19 is a further cross-sectional view of the display panel provided by the embodiment of the present invention, and fig. 20 is a further cross-sectional view of the display panel provided by the embodiment of the present invention, where the first sections 36 may be square, and the micro-nano structure 8 is a cylindrical structure.
The micro-nano structures 8 with the structure have better reflection reducing and reflection increasing effects on the ambient light, and all contribute to reducing the reflection of the ambient light in the optical component area 3.
Based on the same inventive concept, an embodiment of the present invention further provides a display device, as shown in fig. 21, and fig. 21 is a schematic structural diagram of the display device provided in the embodiment of the present invention, where the display device includes the display panel 100 described above. The specific structure of the display panel 100 is described in detail in the above embodiments, and will not be described here again. Of course, the display device shown in fig. 21 is only a schematic illustration, and the display device may be any electronic apparatus having a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the invention.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (11)
1. A display panel, comprising:
a display region including a first display region and an optical component region;
a substrate;
a light emitting device layer located on one side of the substrate;
the packaging layer is positioned on one side of the light-emitting device layer, which is opposite to the substrate, and comprises a first packaging layer;
the optical filter layer is positioned on one side of the packaging layer, which is opposite to the substrate, and comprises a black matrix and a color resistor, wherein the black matrix is used for limiting a light transmission area, a shielding area and a light emergent area, the light emergent area is positioned in the first display area and the optical component area, the shielding area is positioned in the first display area and the optical component area, the light transmission area is positioned in the optical component area, and the color resistor is at least positioned in the light emergent area;
the micro-nano structure is positioned in the light transmission area and on one side of the first packaging layer, which is away from the substrate.
2. The display panel of claim 1, wherein the display panel comprises,
the height of the micro-nano structure is smaller than 200nm, and the distance between adjacent micro-nano structures in the light transmission area is smaller than 400nm.
3. The display panel of claim 1, wherein the display panel comprises,
the display panel further comprises a first film layer, the first film layer covers the micro-nano structure, and the refractive index of the micro-nano structure is between the refractive index of the first film layer and the refractive index of the first packaging layer.
4. The display panel of claim 1, wherein the display panel comprises,
the packaging layer comprises a first inorganic packaging layer, an organic packaging layer and a second inorganic packaging layer which are stacked along a direction far away from the substrate, and the first packaging layer comprises the second inorganic packaging layer.
5. The display panel of claim 1, wherein the display panel comprises,
the packaging layer comprises a first inorganic packaging layer, an organic packaging layer and a second inorganic packaging layer which are stacked along a direction far away from the substrate, and the first packaging layer comprises the first inorganic packaging layer.
6. The display panel of claim 1, wherein the display panel comprises,
the color resistances comprise a first color resistance, a second color resistance and a third color resistance;
the light-transmitting area comprises a first light-transmitting area, one side of the first light-transmitting area is adjacent to the first color resistor, and the other side of the first light-transmitting area is adjacent to the second color resistor or the third color resistor;
the first light-transmitting region comprises a first sub-region and a second sub-region, the first sub-region is adjacent to the first color resistance, wherein the distance between adjacent micro-nano structures in the first sub-region is smaller than the distance between adjacent micro-nano structures in the second sub-region, and/or the height of the micro-nano structures in the first sub-region is larger than the height of the micro-nano structures in the second sub-region.
7. The display panel of claim 6, wherein the display panel comprises,
the distance between adjacent micro-nano structures in the first sub-region is equal, and the distance between adjacent micro-nano structures in the second sub-region is equal;
and/or the heights of the micro-nano structures in the first subarea are equal, and the heights of the micro-nano structures in the second subarea are equal.
8. The display panel of claim 6, wherein the display panel comprises,
in the first light-transmitting region, the distance between the micro-nano structures is increased gradually along the direction that the first color resistance adjacent to the first light-transmitting region points to the second color resistance or the third color resistance adjacent to the first color resistance, and/or the height of the micro-nano structures is decreased gradually.
9. The display panel of claim 1, wherein the display panel comprises,
the color resistances comprise a first color resistance, a second color resistance and a third color resistance;
the light-transmitting area comprises a second light-transmitting area and a third light-transmitting area, both sides of the second light-transmitting area are adjacent to the first color resistor, the third light-transmitting area is not adjacent to the first color resistor, the distance between adjacent micro-nano structures in the second light-transmitting area is smaller than the distance between adjacent micro-nano structures in the third light-transmitting area, and/or the height of the micro-nano structures in the second light-transmitting area is larger than the height of the micro-nano structures in the third light-transmitting area.
10. The display panel of claim 1, wherein the display panel comprises,
the micro-nano structure has a first section perpendicular to the substrate, the width of the first section of at least part of the micro-nano structure decreases along the direction of the substrate pointing to the filter layer, and/or the width of the first section of at least part of the micro-nano structure is equal.
11. A display device comprising the display panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310897046.7A CN116744748A (en) | 2023-07-20 | 2023-07-20 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310897046.7A CN116744748A (en) | 2023-07-20 | 2023-07-20 | Display panel and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116744748A true CN116744748A (en) | 2023-09-12 |
Family
ID=87901311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310897046.7A Pending CN116744748A (en) | 2023-07-20 | 2023-07-20 | Display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116744748A (en) |
-
2023
- 2023-07-20 CN CN202310897046.7A patent/CN116744748A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112447931B (en) | Display panel and display device | |
| CN110286514B (en) | Display panel and display device | |
| CN113629208B (en) | Display panel and display device | |
| CN113394351B (en) | Display panel and display device | |
| CN113725385A (en) | Display panel and display device | |
| KR20050099467A (en) | Liquid crystal display device | |
| WO2020220513A1 (en) | Display panel and display device | |
| US10073274B2 (en) | Grating, manufacturing method thereof and display device | |
| CN113467123A (en) | Display module and display device | |
| CN108333832B (en) | Color film substrate, liquid crystal display panel and display device | |
| CN211180476U (en) | Liquid crystal display device having a plurality of pixel electrodes | |
| CN111725264A (en) | Display device | |
| KR20080038778A (en) | Visibility enhancement film, display filter and display apparatus using the same | |
| CN114068843A (en) | Display panel and display device | |
| CN112086489A (en) | Display panel and display device | |
| US20240062715A1 (en) | Display panel and display apparatus | |
| WO2021057670A1 (en) | Display screen, under-screen camera device and mobile terminal | |
| CN111384064B (en) | Display panel and terminal device thereof | |
| CN112216210B (en) | Color film substrate, display panel and display device | |
| CN213844089U (en) | Display module and electronic device | |
| CN114864847B (en) | Display panel and display terminal | |
| CN116744748A (en) | Display panel and display device | |
| CN113287212A (en) | Electronic device, display device and pixel structure | |
| TW200411231A (en) | Light guide plate and back light system with the same | |
| US20230076282A1 (en) | Display panel and display apparatus |
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 |