CN111969032B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN111969032B CN111969032B CN202010899794.5A CN202010899794A CN111969032B CN 111969032 B CN111969032 B CN 111969032B CN 202010899794 A CN202010899794 A CN 202010899794A CN 111969032 B CN111969032 B CN 111969032B
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
Abstract
The invention discloses a display panel and a display device. The display panel comprises a substrate, a plurality of sub-pixels and a color film layer, wherein the sub-pixels comprise an opening area and a non-opening area, the color film layer comprises a plurality of color blocks, the sub-pixels comprise first sub-pixels, the color blocks comprise first color blocks, the first color blocks correspond to the first sub-pixels, the first color blocks comprise first light-transmitting parts and second light-transmitting parts, the projection of the first light-transmitting parts on the plane of the substrate and the projection of the opening area of the first sub-pixels on the substrate are at least partially overlapped, the projection of the second light-transmitting parts on the plane of the substrate and the projection of the non-opening area of the first sub-pixels on the substrate are at least partially overlapped, and the transmittance of the first light-transmitting parts to light of the first color is larger than that of the second light-transmitting parts to light of the first color. The display panel and the display device provided by the invention reduce the reflection of external ambient light and increase the light-emitting rate of the display panel.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display panel and a display device.
Background
In order to reduce reflection of external light in an organic electroluminescent display panel, a polarizer is generally mounted on a light emitting surface of an OLED device. The transmittance of the polarizer is generally about 45%, and the reflectance at 60 ° viewing angle is about 15.5%. The polarizer can reduce the reflection of external ambient light, but also greatly loses the light yield of the OLED device.
Disclosure of Invention
The invention provides a display panel and a display device, which are used for reducing reflection of external ambient light and increasing the light-emitting rate of the display panel.
In a first aspect, an embodiment of the present invention provides a display panel, including:
a substrate, a plurality of sub-pixels positioned at one side of the substrate, wherein the sub-pixels comprise an opening area and a non-opening area;
the color film layer is positioned on one side of the sub-pixel, which is away from the substrate;
the color film layer comprises a plurality of color blocks, the color blocks are arranged corresponding to the sub-pixels, the projection of the color blocks on the plane of the substrate is covered by the projection of the corresponding sub-pixels on the substrate along a first direction, and the first direction is perpendicular to the plane of the substrate;
the sub-pixels comprise first sub-pixels which emit light of a first color, the color blocks comprise first color blocks, and the first color blocks correspond to the first sub-pixels; the first color block comprises a first light-transmitting part and a second light-transmitting part, and along the first direction, the projection of the first light-transmitting part on the plane of the substrate is overlapped with the projection of the opening area of the first sub-pixel on the substrate at least partially; along the first direction, the projection of the second light-transmitting part on the plane of the substrate and the projection of the non-opening area of the first sub-pixel on the substrate are overlapped at least partially, and the transmittance of the first light-transmitting part to the light of the first color is larger than that of the second light-transmitting part to the light of the first color.
In a second aspect, an embodiment of the present invention further provides a display apparatus, including any one of the display panels described in the first aspect.
According to the technical scheme provided by the embodiment of the invention, the color film layer is arranged on one side of the sub-pixel, which is far away from the substrate, and the color film layer comprises the first light-transmitting part corresponding to the light-emitting area of the first sub-pixel and the second light-transmitting part corresponding to the non-light-emitting area of the first sub-pixel, the light-emitting efficiency of the first sub-pixel is higher through the arrangement of the first light-transmitting part, the light-emitting efficiency of the first sub-pixel is ensured to be higher, the second light-transmitting part has a certain shielding effect on the non-opening area through the arrangement of the second light-transmitting part, and the reflection of external environment light to human eyes by metal wires in the non-opening area is avoided to a certain extent, so that the reflectivity of a screen is effectively reduced. Compared with the prior art, the color film layer is used for replacing the polaroid in the prior art, the anti-reflection capability of the display panel is improved, the luminous efficiency of the display panel is improved, and the thickness of the display panel is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1 along the direction A-A';
FIG. 3 is a schematic partial cross-sectional view of a display panel according to an embodiment of the invention;
FIG. 4 is a schematic partial cross-sectional view of another display panel according to an embodiment of the invention;
FIG. 5 is a schematic view of a partial cross-sectional structure of a display panel according to another embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of FIG. 1 along the direction B-B';
FIG. 7 is a schematic partial cross-sectional view of a display panel according to another embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view of FIG. 1 along the direction C-C';
FIG. 9 is a schematic partial cross-sectional view of a display panel according to another embodiment of the present invention;
FIG. 10 is a schematic partial cross-sectional view of a display panel according to another embodiment of the present invention;
FIG. 11 is a schematic partial cross-sectional view of a display panel according to another embodiment of the present invention;
FIG. 12 is a schematic partial cross-sectional view of a display panel according to another embodiment of the present invention;
fig. 13 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
Fig. 1 is a schematic structural view of a display panel provided by an embodiment of the present invention, fig. 2 is a schematic structural view of a cross section of fig. 1 along A-A', and as shown in fig. 1 and fig. 2, the display panel provided by the embodiment of the present invention includes a substrate 10, a plurality of sub-pixels located at one side of the substrate 10, the sub-pixels including an opening area and a non-opening area, the display panel further includes a color film layer 11 located at one side of the sub-pixels facing away from the substrate 10, the color film layer 11 includes a plurality of color blocks, the color blocks are disposed corresponding to the sub-pixels, and along a first direction X, a projection of the color blocks on a plane of the substrate 10 covers a projection of the corresponding sub-pixels on the substrate 10, and the first direction X is perpendicular to the plane of the substrate 10. The sub-pixel comprises a first sub-pixel 21, the first sub-pixel 21 emits light of a first color, the color block comprises a first color block 31, the first color block 31 corresponds to the first sub-pixel 21, the first color block 31 comprises a first light-transmitting part 311 and a second light-transmitting part 312, and along a first direction X, the projection of the first light-transmitting part 311 on a plane of the substrate 10 and the projection of an opening area 211 of the first sub-pixel 21 on the substrate 10 at least partially overlap; along the first direction X, the projection of the second light-transmitting portion 312 on the plane of the substrate 10 at least partially overlaps the projection of the non-opening area 212 of the first sub-pixel 21 on the substrate 10, and the transmittance of the first light-transmitting portion 311 for the light of the first color is greater than the transmittance of the second light-transmitting portion 312 for the light of the first color.
Specifically, as shown in fig. 1 and 2, a plurality of sub-pixels are disposed on one side of a substrate 10 of the display panel, the sub-pixels include an opening area and a non-opening area, the opening area is an effective light emitting area of the sub-pixels, and the non-opening area is provided with a metal wire for transmitting signals. The side that sub-pixel deviates from substrate base plate 10 is provided with colored rete 11, and colored rete 11 includes a plurality of color blocks, and the color block corresponds the setting with sub-pixel, and the color block is arranged in filtering rather than the self colour is different in the external environment light, plays the effect of light filtering. Along the first direction X, the projection of the color block on the plane of the substrate 10 covers the projection of the corresponding sub-pixel on the substrate 10, and the color of the color block is the same as the color of the light emitted by the sub-pixel overlapped with the color block, so as to avoid light mixing.
For example, with continued reference to fig. 1 and 2, the sub-pixel includes a first sub-pixel 21, the first sub-pixel 21 emits light of a first color, the color block includes a first color block 31, the first color block 31 corresponds to the first sub-pixel 21, and the first color block 31 is configured to filter light different from the light of the first color. The first color block 31 includes a first light-transmitting portion 311 and a second light-transmitting portion 312, and along the first direction X, the projection of the first light-transmitting portion 311 on the plane of the substrate 10 and the projection of the opening region 211 of the first sub-pixel 21 on the substrate 10 overlap at least partially, so as to ensure that part of the light of the first color emitted by the first sub-pixel 21 exits through the first light-transmitting portion 311. Along the first direction X, the projection of the second light-transmitting portion 312 on the plane of the substrate 10 and the projection of the non-opening area 212 of the first sub-pixel 21 on the substrate 10 at least partially overlap, so as to ensure that part of light reflected by the film layers such as the metal wires in the non-opening area 212 is emitted through the second light-transmitting portion 312. By providing the first light transmitting portion 312 with a larger transmittance for light of the first color, higher light emitting efficiency of the first sub-pixel 21 is ensured; the second light-transmitting portion 312 is arranged to have smaller transmittance for the light of the first color, and the reflected light of the metal wires in the non-opening area 212 to the external environment light can be weakened by the second light-transmitting portion 312, so that the second light-transmitting portion 312 plays a certain shielding role on the non-opening area 212, the external environment light is prevented from being reflected to human eyes by the metal wires in the non-opening area 212 to a certain extent, and the screen reflectivity is effectively reduced.
According to the display panel provided by the embodiment of the invention, the color film layer is arranged on the side, away from the substrate, of the sub-pixel, the color film layer comprises the first light-transmitting part corresponding to the light-emitting area of the first sub-pixel and the second light-transmitting part corresponding to the non-light-emitting area of the first sub-pixel, the light-emitting efficiency of the first sub-pixel is higher through the arrangement of the first light-transmitting part, the light-emitting efficiency of the first sub-pixel is ensured to be higher, the second light-transmitting part has a certain shielding effect on the non-opening area through the arrangement of the second light-transmitting part, and the reflection of external environment light to human eyes through metal wiring in the non-opening area is avoided to a certain extent, so that the reflectivity of a screen is effectively reduced. Compared with the prior art, the color film layer is used for replacing the polaroid in the prior art, the anti-reflection capability of the display panel is improved, the luminous efficiency of the display panel is improved, and the thickness of the display panel is reduced.
With continued reference to fig. 1 and 2, optionally, a second light transmissive portion 312 is disposed around the first light transmissive portion 311.
As shown in fig. 1 and 2, the projection of the first light-transmitting portion 311 on the plane of the substrate 10 overlaps the projection of the opening region 211 of the first sub-pixel 21 on the substrate 10, so that the light emitted from the opening region 211 of the first sub-pixel 21 exits through the first light-transmitting portion 311, thereby improving the light-emitting efficiency of the display panel. The second light-transmitting portion 312 is disposed around the first light-transmitting portion 311, so that the second light-transmitting portion 312 corresponds to the non-opening region 212 of the first sub-pixel 21 disposed around the opening region 211, and is helpful to play a certain role in shielding the metal wires in the non-opening region 212, so as to prevent the external ambient light from being reflected to the human eyes by the metal wires in the non-opening region, and further reduce the reflectivity of the screen.
With continued reference to fig. 1 and 2, optionally, along the first direction X, the projection of the first light-transmitting portion 311 on the plane of the substrate 10 covers the projection of the opening region 311 of the first sub-pixel 31 on the substrate 10.
As shown in fig. 1 and fig. 2, the projection of the first light-transmitting portion 311 on the plane of the substrate 10 covers the projection of the opening area 311 of the first sub-pixel 31 on the substrate 10, so that the light rays with small angles emitted by the opening area 311 of the first sub-pixel 31 can be emitted through the first light-transmitting portion 311, the light emitting efficiency of the light rays with small angles of the display panel is improved, and the display effect of the display panel in the field of view with small angles is improved.
With continued reference to fig. 2, optionally, along the first direction X, the first light-transmitting portion 311 has a thickness D1 and the second light-transmitting portion 312 has a thickness D2, where D1 < D2.
As shown in fig. 2, the thicker the color block is, the lower the transmittance is, and by providing the thickness D1 of the first light-transmitting portion 311 smaller than the thickness D2 of the second light-transmitting portion 312, the transmittance of the first light-transmitting portion 311 is made larger than the transmittance of the second light-transmitting portion 312. Illustratively, the thickness D1 of the first light-transmitting portion 311 is set to be smaller than the thickness D2 of the second light-transmitting portion 312, and the first light-transmitting portion 311 and the second light-transmitting portion 312 may be made of the same material, thereby reducing complexity of the manufacturing process.
Optionally, d2 is less than or equal to 2×d1.
If the thickness D2 of the second light-transmitting portion 312 is too large, the transmittance of the second light-transmitting portion 312 is too small, and the large-angle light emitted from the opening area 311 of the first sub-pixel 31 is greatly weakened through the second light-transmitting portion 312, so that the light-emitting efficiency of the large-angle light of the display panel is reduced, and the display effect of the display panel at a large viewing angle is affected. By setting D2 to be equal to or less than 2×d1, the transmissivity of the second light-transmitting portion 312 is prevented from being too small, and the attenuation of the second light-transmitting portion 312 to the light with a large viewing angle is reduced, so that the display effect of the display panel at a large viewing angle is ensured.
The present invention is not limited to the relationship between D1 and D2 provided in the above embodiments, and in other embodiments, the thickness D1 of the first light-transmitting portion 311 and the thickness D2 of the second light-transmitting portion 312 may be set according to actual needs, so that the transmittance of the first light-transmitting portion 311 and the second light-transmitting portion 312 is adjusted to balance the light-emitting efficiency of the display panel and the reflectance of the external ambient light.
With continued reference to fig. 2, the display panel provided in the embodiment of the present invention further includes an encapsulation layer 12, where the encapsulation layer 12 is located on a side of the sub-pixels away from the substrate 10, for protecting the sub-pixels from water and oxygen. The packaging layer 12 may be a thin film packaging layer, and the thin film packaging layer may include an inorganic layer/organic layer/inorganic layer three-layer structure, which has advantages of light weight, thin profile, flexibility, etc., while isolating water vapor, which is not limited in the embodiment of the present invention. For example, as shown in fig. 2, after the encapsulation layer 12 is planarized, the color film layer 11 is prepared on the side of the encapsulation layer 12 away from the substrate 10, and the thickness D1 of the first light-transmitting portion 311 is smaller than the thickness D2 of the second light-transmitting portion 312, so as to achieve that the transmittance of the first light-transmitting portion 311 is greater than the transmittance of the second light-transmitting portion 312.
Fig. 3 is a schematic partial cross-sectional view of a display panel according to an embodiment of the present invention, as shown in fig. 3, in other embodiments, the thickness of the encapsulation layer 12 in the opening region 211 of the first sub-pixel 21 may be greater than the thickness of the non-opening region 212 of the first sub-pixel 21, so that the thickness D1 of the first transparent portion 311 is smaller than the thickness D2 of the second transparent portion 312, and the surface flatness of the color block is ensured and the surface flatness of the display panel is improved.
Fig. 4 is a schematic partial cross-sectional view of another display panel according to an embodiment of the invention, as shown in fig. 4, optionally, the first light-transmitting portion 311 is made of a first light-transmitting material, the second light-transmitting portion 312 is made of a second light-transmitting material, and the transmittance of the first light-transmitting material to light of the first color is greater than the transmittance of the second light-transmitting material to light of the first color.
Wherein, the first light transmitting portion 311 is made of a first light transmitting material having a larger transmittance for the light of the first color, and the second light transmitting portion 312 is made of a second light transmitting material having a smaller transmittance for the light of the first color, so that the transmittance of the first light transmitting portion 311 for the light of the first color is larger than the transmittance of the second light transmitting portion 312 for the light of the first color. For example, as shown in fig. 4, by implementing that the transmittance of the first light-transmitting portion 311 for the light of the first color is greater than the transmittance of the second light-transmitting portion 312 for the light of the first color by using different materials, the thickness D1 of the first light-transmitting portion 311 may be set to be equal to the thickness D2 of the second light-transmitting portion 312, so as to improve the surface flatness of the display panel, wherein the first light-transmitting material and the second light-transmitting material may be selected according to the requirement for the light transmittance of the first light-transmitting portion 311 and the second light-transmitting portion 312.
Optionally, the pigment doping concentration in the first light transmissive material is less than the pigment doping concentration in the second light transmissive material.
The first light-transmitting material and the second light-transmitting material may be formed by mixing resin, pigment, etc., and the transmittance of the first light-transmitting material and the second light-transmitting material is determined by the concentration of the pigment, and the higher the pigment concentration is, the lower the transmittance is, and by adjusting the pigment doping concentration in the first light-transmitting material to be smaller than the pigment doping concentration in the second light-transmitting material, the transmittance of the first light-transmitting portion 311 for the light of the first color is higher than the transmittance of the second light-transmitting portion 312 for the light of the first color, so that the preparation method is simple and easy to be implemented. Wherein the pigment doping concentration in the first light-transmitting material and the pigment doping concentration in the second light-transmitting material may be set according to the requirement of the light transmittance of the first light-transmitting portion 311 and the second light-transmitting portion 312.
With continued reference to fig. 2-4, the outgoing light beam of the display panel may optionally include a first outgoing light beam, where the first outgoing light beam is a light beam of the first color that exits through the first color block 31. The first outgoing light beam includes a first outgoing light beam 41 and a first second outgoing light beam 42, where the first outgoing light beam 41 is a light beam of the first color that is outgoing through the first light-transmitting portion 311 of the first color block 31, and the first second outgoing light beam 42 is a light beam of the first color that is outgoing through the second light-transmitting portion 312 of the first color block 31. The first outgoing light beam 41 has a first viewing angle range, and the first outgoing light beam 42 has a second viewing angle range, wherein the first viewing angle range is 0 DEG to theta 1, and the second viewing angle range is theta 1 to 90 DEG, and theta 1 is more than or equal to 30 DEG and less than or equal to 60 deg.
Specifically, as shown in fig. 2-4, the first outgoing beam outgoing through the first color block 31 includes a first outgoing beam 41 and a first second outgoing beam 42, the first outgoing beam 41 is outgoing through the first light-transmitting portion 311, and the attenuation of the first outgoing beam 41 is smaller because the transmittance of the first light-transmitting portion 311 to the light of the first color is larger; the first second outgoing beam 42 is outgoing through the second light-transmitting portion 312, and since the transmittance of the second light-transmitting portion 312 to the light of the first color is smaller, the attenuation of the first second outgoing beam 42 is larger, and by setting the first viewing angle range of the first outgoing beam 41 to be 0 ° to θ1, the second viewing angle range of the first second outgoing beam 42 to be θ1 to 90 °, and 30 ° to θ1 to be 60 °, the light outgoing efficiency of the display panel within a certain angle field of view is improved. For example, if θ1 is 30 °, the light output efficiency of the display panel is high within 30 °, so that the display effect of the display panel within 30 ° is ensured.
Fig. 5 is a schematic diagram of a partial cross-sectional structure of another display panel according to an embodiment of the present invention, as shown in fig. 5, an encapsulation layer 12 is disposed on a side of the sub-pixel away from the substrate 10, for protecting the sub-pixel from water and oxygen. The packaging layer 12 is a thin film packaging layer, and the thin film packaging layer may include an inorganic layer/organic layer/inorganic layer three-layer structure, and has advantages of light, thin, flexible, etc. while isolating water vapor. In this embodiment, taking the case that the encapsulation layer 12 includes the first inorganic layer 121, the organic layer 122 and the second inorganic layer 123 as an example, since the refractive indexes of the film layers in the encapsulation layer 12 and the color film layer 11 are different, deflection occurs in the process that the light emitted by the sub-pixel exits to the air, for example, as shown in fig. 5, the lateral distance of the light emitted by the first sub-pixel 21 along the second direction Y deflected by the first inorganic layer 121 is a, the lateral distance deflected by the organic layer 122 is b, the lateral distance deflected by the second inorganic layer 123 is c, the lateral distance deflected by the color film layer 11 is d, and finally the light exits at an angle θ1. For example, table 1 lists the thicknesses, refractive indices, and lateral distances of light rays deflected in each film layer when θ1=10° of each film layer in the encapsulation layer 12 and the color film layer 11.
TABLE 1
| Thickness (μm) | Refractive index | Lateral distance (μm) | |
| Color film layer | 2 | 1.5 | 0.2 |
| Second inorganic layer | 1 | 1.8 | 0.1 |
| Organic layer | 10 | 1.47 | 1.2 |
| First inorganic layer | 1 | 1.76 | 0.1 |
As shown in fig. 5 and table 1, according to the refractive index and thickness of each film layer in the encapsulation layer 12 and the color film layer 11, the distance H of the light beam at each viewing angle moving along the second direction Y in the encapsulation layer 12 and the color film layer 11 can be calculated, for example, in this embodiment, the distance H of the light beam at the viewing angle moving along the second direction Y in the encapsulation layer 12 and the color film layer 11 is 1.6 μm, so that the boundary position of the first light-transmitting portion 311 and the second light-transmitting portion 312 can be determined by the value of θ1.
For example, when θ1 is 30 °, the distance H of the light beam with 30 ° viewing angle moving along the second direction Y in the encapsulation layer 12 and the color film layer 11 is calculated according to the refractive index and the thickness of each film layer and the color film layer 11 in the encapsulation layer 12, the position of the light beam with 30 ° viewing angle exiting from the display panel is determined, and the boundary position of the first light transmitting portion 311 and the second light transmitting portion 312 is further determined, so that the light beam with the viewing angle within 30 ° of the display panel exits through the first light transmitting portion 311, and the light beam with the viewing angle within 30 ° to 90 ° of the display panel exits through the second light transmitting portion 312, thereby ensuring the display effect of the display panel within 30 ° of the viewing angle.
Fig. 6 is a schematic cross-sectional view of fig. 1 along direction B-B', and as shown in fig. 1 and 6, the optional sub-pixel further includes a second sub-pixel 22, the second sub-pixel 22 emits light of a second color, and the color block further includes a second color block 32, where the second color block 32 corresponds to the second sub-pixel 22. The second color block 32 includes a third light-transmitting portion 321 and a fourth light-transmitting portion 322, and along the first direction X, a projection of the third light-transmitting portion 321 on a plane of the substrate 10 at least partially overlaps a projection of the opening region 211 of the second sub-pixel 22 on the substrate 10. Along the first direction X, the projection of the fourth light-transmitting portion 322 on the plane of the substrate 10 and the projection of the non-opening area 212 of the second sub-pixel 22 on the substrate 10 at least partially overlap, and the transmittance of the third light-transmitting portion 321 for the light of the second color is greater than the transmittance of the fourth light-transmitting portion 322 for the light of the second color. The wavelength of the light of the first color is smaller than that of the light of the second color, the boundary between the first light transmitting portion 311 and the second light transmitting portion 312 in the first color block 31 is the first boundary 51, and the boundary between the third light transmitting portion 321 and the fourth light transmitting portion 322 in the second color block 32 is the second boundary 52. The shortest distance between the edge of the opening 211 of the first sub-pixel 21 and the first boundary line 51 along the second direction Y is d1, and the shortest distance between the edge of the opening 211 of the second sub-pixel 22 and the second boundary line 52 along the second direction Y is d2, wherein d1 < d2, and the second direction Y is perpendicular to the first direction X.
Specifically, as shown in fig. 1 and 6, the sub-pixel further includes a second sub-pixel 22, the second sub-pixel 22 emits light of a second color, the color block further includes a second color block 32, the second color block 32 is disposed corresponding to the second sub-pixel 22, and the second color block 32 is configured to filter light different from the light of the second color. The second color block 32 includes a third light-transmitting portion 321 and a fourth light-transmitting portion 322, and along the first direction X, the projection of the third light-transmitting portion 321 on the plane of the substrate 10 and the projection of the opening region 211 of the second sub-pixel 22 on the substrate 10 at least partially overlap, so as to ensure that part of the light of the second color emitted by the second sub-pixel 22 exits through the third light-transmitting portion 321. Along the first direction X, the projection of the fourth light-transmitting portion 322 on the plane of the substrate 10 and the projection of the non-opening area 212 of the second sub-pixel 22 on the substrate 10 overlap at least partially, so as to ensure that part of light reflected by the film layers such as the metal wires in the non-opening area 212 is emitted through the fourth light-transmitting portion 322. By providing the third light transmitting portion 321 with a larger transmittance for light of the second color, higher light emitting efficiency of the second sub-pixel 22 is ensured; the transmittance of the fourth light-transmitting portion 322 to the light of the second color is smaller, and the reflected light of the metal wires in the non-opening area 212 to the external environment light can be weakened by the fourth light-transmitting portion 322, so that the fourth light-transmitting portion 322 plays a certain shielding role on the metal wires in the non-opening area 212, the external environment light is prevented from being reflected to human eyes by the metal wires in the non-opening area 212 to a certain extent, and the reflectivity of a screen is effectively reduced.
Under the condition of large visual angle, the light emitted by the display panel has attenuation phenomenon, and the attenuation degree of different color lights is different due to different wavelengths of the color lights of different colors, so that the color cast phenomenon is easy to generate under the condition of large visual angle, and the display effect is influenced. For example, the wavelength of light of the first color is smaller than that of light of the second color, and the attenuation of light of the second color is large in the case of a large viewing angle, so that the display panel may generate a color shift phenomenon in the case of a large viewing angle. Therefore, as shown in fig. 6, by setting the shortest distance d1 between the edge of the opening area 211 of the first sub-pixel 21 and the first boundary 51 to be smaller than the shortest distance d2 between the edge of the opening area 211 of the second sub-pixel 22 and the second boundary 52, more light of the second color with a large viewing angle is emitted through the third light-transmitting portion 321 in the case of a large viewing angle, and since the transmittance of the light of the second color by the third light-transmitting portion 321 is larger, the light-emitting efficiency of the light of the second color in the case of a large viewing angle is improved, and the light component of the light of the second color with a large viewing angle is increased, thereby improving the color cast problem of the display panel in the case of a large viewing angle.
With continued reference to fig. 6, the sub-pixel further includes a second sub-pixel 22, the second sub-pixel 22 emits light of a second color, and the color block further includes a second color block 32, the second color block 32 corresponding to the second sub-pixel 22. The second color block 32 includes a third light-transmitting portion 321 and a fourth light-transmitting portion 322, and along the first direction X, a projection of the third light-transmitting portion 321 on a plane of the substrate 10 at least partially overlaps a projection of the opening region 211 of the second sub-pixel 22 on the substrate 10. Along the first direction X, the projection of the fourth light-transmitting portion 322 on the plane of the substrate 10 and the projection of the non-opening area 212 of the second sub-pixel 22 on the substrate 10 at least partially overlap, and the transmittance of the third light-transmitting portion 321 for the light of the second color is greater than the transmittance of the fourth light-transmitting portion 322 for the light of the second color, and the wavelength of the first color is smaller than the wavelength of the second color. The outgoing beam of the display panel includes a first outgoing beam and a second outgoing beam, the first outgoing beam is a beam of light of a first color outgoing through the first color block 31, and the second outgoing beam is a beam of light of a second color outgoing through the second color block 32. The first outgoing light beam includes a first outgoing light beam 41 and a first second outgoing light beam 42, the second outgoing light beam includes a second first outgoing light beam 43 and a second outgoing light beam 44, the first outgoing light beam 41 is a light beam of the first color emitted through the first light-transmitting portion 311 of the first color block 31, the first second outgoing light beam 42 is a light beam of the first color emitted through the second light-transmitting portion 312 of the first color block 31, the second first outgoing light beam 43 is a light beam of the second color emitted through the third light-transmitting portion 321 of the second color block 32, and the second outgoing light beam 44 is a light beam of the second color emitted through the fourth light-transmitting portion 322 of the second color block 32. The first outgoing light beam 41 has a first viewing angle range, the first second outgoing light beam 42 has a second viewing angle range, the second outgoing light beam 43 has a third viewing angle range, and the second outgoing light beam 44 has a fourth viewing angle range, wherein the first viewing angle range is 0 DEG to theta 1, the second viewing angle range is 0 DEG to theta 90 DEG, the third viewing angle range is 0 DEG to theta 2, and the fourth viewing angle range is theta 2 to 90 DEG, and theta 1 < theta 2.
Specifically, as shown in fig. 6, the first outgoing beam outgoing through the first color block 31 includes a first outgoing beam 41 and a first second outgoing beam 42, the first outgoing beam 41 outgoing through the first light-transmitting portion 311, and the first second outgoing beam 42 outgoing through the second light-transmitting portion 312; the second outgoing beam emitted through the second color block 32 includes a second first outgoing beam 43 and a second outgoing beam 44, the second first outgoing beam 43 is emitted through the third light-transmitting portion 321, and the second outgoing beam 44 is emitted through the fourth light-transmitting portion 322. Since the first light-transmitting portion 311 has a larger transmittance for the light of the first color, the attenuation of the first light-emitting beam 41 is smaller, the transmittance of the second light-transmitting portion 312 for the light of the first color is smaller, the attenuation of the first second light-emitting beam 42 is larger, the transmittance of the third light-transmitting portion 321 for the light of the second color is larger, the attenuation of the second first light-emitting beam 43 is smaller, the transmittance of the fourth light-transmitting portion 322 for the light of the second color is smaller, the attenuation of the second light-emitting beam 44 is larger, the first viewing angle range of the first light-emitting beam 41 is 0 ° to θ1, the second viewing angle range of the first second light-emitting beam 42 is θ1 to 90 °, the third viewing angle range of the second light-emitting beam 43 is 0 ° to θ2, and the fourth viewing angle range of the second light-emitting beam 44 is θ2 to 90 °, so that the viewing angle range of the second light-emitting beam 43 is larger, the light-emitting efficiency of the second color at a large viewing angle is increased, and the large viewing angle light-emitting panel becomes a multi-color display panel under a large viewing angle condition is improved.
Fig. 7 is a schematic partial cross-sectional view of a display panel according to another embodiment of the invention, as shown in fig. 7, optionally, the sub-pixel further includes a second sub-pixel 22, the second sub-pixel 22 emits light of a second color, and the color block further includes a second color block 32, where the second color block 32 corresponds to the second sub-pixel 22. The second color block 32 includes a third light-transmitting portion 321 and a fourth light-transmitting portion 322, and along the first direction X, a projection of the third light-transmitting portion 321 on a plane of the substrate 10 at least partially overlaps a projection of the opening region 211 of the second sub-pixel 22 on the substrate 10. Along the first direction X, the projection of the fourth light-transmitting portion 322 on the plane of the substrate 10 and the projection of the non-opening area 212 of the second sub-pixel 22 on the substrate 10 at least partially overlap, and the transmittance of the third light-transmitting portion 321 for the light of the second color is greater than the transmittance of the fourth light-transmitting portion 322 for the light of the second color, and the wavelength of the first color is smaller than the wavelength of the second color. The transmittance ratio n1=t1/T2 of the first color block 31 to the light of the first color, the transmittance ratio n2=t3/T4 of the second color block 32 to the light of the second color, where n1 < n2, T1 is the transmittance of the second light transmitting portion 312 in the first color block 31 to the light of the first color, T2 is the transmittance of the first light transmitting portion 311 in the first color block 31 to the light of the first color, T3 is the transmittance of the fourth light transmitting portion 322 in the second color block 32 to the light of the second color, and T4 is the transmittance of the third light transmitting portion 321 in the second color block 32 to the light of the second color.
Specifically, as shown in fig. 7, the transmittance ratio n1=t1/T2 of the first color block 31 to the light of the first color, and the transmittance ratio n2=t3/T4 of the second color block 32 to the light of the second color are set such that n1 < n2, the transmittance of the fourth light transmitting portion 322 in the second color block 32 to the light of the second color is larger, and since the light of the second color with a large viewing angle is emitted through the fourth light transmitting portion 322, the light emitting efficiency of the light of the second color with a large viewing angle is improved, and the color shift problem of the display panel under the condition of a large viewing angle is improved.
With continued reference to fig. 1-4, the color film layer 11 may further include a black matrix 60 disposed between two adjacent color blocks, and the outgoing beam of the display panel includes a first outgoing beam, where the first outgoing beam is a beam of light of the first color that exits through the first color block 31. The black matrix 60 is used to block part of the outgoing light beams so that the first outgoing light beam has a fifth viewing angle range of 0 DEG to theta 5, 30 DEG to theta 5 to 60 deg.
Specifically, as shown in fig. 1-4, a black matrix 60 is disposed between two adjacent color blocks, where the black matrix 60 can shield the metal wires located in the non-opening area 212, so as to prevent external ambient light from being reflected to human eyes by the metal wires, and reduce reflectivity of the display panel; meanwhile, the black matrix 60 can also shield oblique light rays emitted by the sub-pixels, so as to avoid color mixing caused by the fact that the oblique light rays are emitted through the color resistance blocks corresponding to the adjacent sub-pixels. By setting the range of the black matrix 60, the first outgoing light beam has a fifth viewing angle range of 0 DEG to theta 5, and 30 DEG is more than or equal to theta 5 and less than or equal to 60 DEG, so that the light extraction efficiency of the light rays of the display panel within the viewing angle of theta 5 is ensured, and the display of the display panel within the viewing angle of theta 5 is ensured. Note that θ5 needs to be greater than θ1, so as to ensure that part of the light of the first color emitted by the first subpixel 21 can exit through the second light-transmitting portion 312.
With continued reference to fig. 6, optionally, the color film layer 11 further includes a black matrix 60 disposed between two adjacent color blocks, the sub-pixel further includes a second sub-pixel 22, the second sub-pixel 22 emits light of a second color, the color block further includes a second color block 32, the second color block 32 corresponds to the second sub-pixel 22, the second color block 32 includes a third light-transmitting portion 321 and a fourth light-transmitting portion 322, along the first direction X, a projection of the third light-transmitting portion 321 on a plane of the substrate 10 and a projection of the opening region 211 of the second sub-pixel 22 on the substrate 10 overlap at least partially, along the first direction X, a projection of the fourth light-transmitting portion 322 on a plane of the substrate 10 and a projection of the non-opening region 212 of the second sub-pixel 22 on the substrate 10 overlap at least partially, and a transmittance of the third light-transmitting portion 321 for light of the second color is greater than a transmittance of the fourth light-transmitting portion 322 for light of the second color, and a wavelength of the first color is less than a wavelength of the second color. Along the second direction Y, the shortest distance between the edge of the opening area 211 of the first sub-pixel 21 and the black matrix 60 is d3; along the second direction Y, the shortest distance between the edge of the opening area 211 of the second sub-pixel 22 and the black matrix 60 is d4; wherein d3 < d4; the second direction Y is perpendicular to the first direction X.
The wavelength of the light of the first color is smaller than that of the light of the second color, and the attenuation of the light of the second color is larger under the condition of a large viewing angle, so that the display panel can generate a color cast phenomenon under the condition of the large viewing angle. As shown in fig. 6, by setting the shortest distance d3 between the edge of the opening area 211 of the first sub-pixel 21 and the black matrix 60 to be smaller than the shortest distance d4 between the edge of the opening area 211 of the second sub-pixel 22 and the black matrix 60, more light of the second color with a large viewing angle is emitted through the third light transmitting portion 321 under the large viewing angle condition, and since the transmittance of the third light transmitting portion 321 to the light of the second color is larger, the light emitting efficiency of the light of the second color under the large viewing angle condition is improved, and the light component of the light of the second color with the large viewing angle is increased, thereby improving the color cast problem of the display panel under the large viewing angle condition.
With continued reference to fig. 6, the color film layer 11 may optionally further include a black matrix 60 disposed between two adjacent color blocks. The sub-pixel further comprises a second sub-pixel 22, the second sub-pixel 22 emits light of a second color, the color block further comprises a second color block 32, the second color block 32 corresponds to the second sub-pixel 22, the second color block 32 comprises a third light-transmitting part 321 and a fourth light-transmitting part 322, along a first direction X, the projection of the third light-transmitting part 321 on the plane of the substrate 10 and the projection of the opening area 211 of the second sub-pixel 22 on the substrate 10 at least partially overlap, along the first direction X, the projection of the fourth light-transmitting part 322 on the plane of the substrate 10 and the projection of the non-opening area 212 of the second sub-pixel 22 on the substrate 10 at least partially overlap, and the transmittance of the third light-transmitting part 321 to the light of the second color is greater than the transmittance of the fourth light-transmitting part 322 to the light of the second color, and the wavelength of the first color is smaller than the wavelength of the second color. The outgoing beam of the display panel includes a first outgoing beam and a second outgoing beam, the first outgoing beam is a beam of light of a first color outgoing through the first color block 31, and the second outgoing beam is a beam of light of a second color outgoing through the second color block 32. The black matrix is used for shielding part of the emergent light beams so that the first emergent light beam has a fifth visual angle range and the second emergent light beam has a sixth visual angle range, wherein the fifth visual angle range is 0-theta 5, the sixth visual angle range is 0-theta 6, and theta 5 is less than theta 6.
Specifically, as shown in fig. 6, the first outgoing beam outgoing from the first color block 31 has a fifth viewing angle range from 0 ° to θ5, the second outgoing beam outgoing from the second color block 32 includes a sixth viewing angle range from 0 ° to θ6, and by setting θ5 < θ6, the viewing angle range of the second outgoing beam is larger, so that the light outgoing efficiency of the light of the second color at a large viewing angle is improved, and the light component of the light of the second color at a large viewing angle is increased, thereby improving the color cast problem of the display panel under the condition of a large viewing angle.
Alternatively, the first color is green or blue and the second color is red.
With continued reference to fig. 1 and 6, taking the first color as blue and the second color as red as an example, since the wavelength of blue light is smaller than that of red light, attenuation of red light is greater in the case of a large viewing angle, and thus an image displayed on the display panel is bluish in the case of a large viewing angle. Therefore, by improving the light-emitting efficiency of the red light in the case of a large viewing angle, the red light component of the large viewing angle becomes large, and the color shift problem of the display panel in the case of a large viewing angle can be improved.
Fig. 8 is a schematic cross-sectional structure along the direction of C-C' in fig. 1, and as shown in fig. 1 and 8, taking the first color as green and the second color as red as an example, since the wavelength of green light is smaller than that of red light, the attenuation of red light is larger under the condition of large viewing angle, and therefore, the image displayed on the display panel is greenish under the condition of large viewing angle. Therefore, by improving the light-emitting efficiency of the red light in the case of a large viewing angle, the red light component of the large viewing angle becomes large, and the color shift problem of the display panel in the case of a large viewing angle can be improved.
Further, the display panel may include red sub-pixels, green sub-pixels and blue sub-pixels at the same time, so as to implement color display, and since the wavelengths of green light and blue light are smaller than those of red light, attenuation of red light is larger under the condition of large viewing angle, and an image displayed by the display panel is bluish green under the condition of large viewing angle. Therefore, the light-emitting efficiency of the green light and the blue light is the same under the condition of setting a large viewing angle, the red light component of the large viewing angle is increased, the light-emitting efficiency of the red light is improved, and the color cast problem of the display panel under the condition of the large viewing angle can be improved.
Fig. 9 is a schematic partial cross-sectional view of a display panel according to another embodiment of the present invention, as shown in fig. 9, optionally, the first color block 31 further includes a first transitional transparent portion 313, the first transitional transparent portion 313 is located between the first transparent portion 311 and the second transparent portion 312, the transmittance of the first transitional transparent portion 313 for light of the first color is smaller than the transmittance of the first transparent portion 311 for light of the first color, and the transmittance of the first transitional transparent portion 313 for light of the first color is greater than the transmittance of the second transparent portion 312 for light of the first color.
Specifically, as shown in fig. 9, a first transitional transparent portion 313 is disposed between the first transparent portion 311 and the second transparent portion 312, and the transmittance of the first transitional transparent portion 313 for the light of the first color is smaller than the transmittance of the first transparent portion 311 for the light of the first color and is greater than the transmittance of the second transparent portion 312 for the light of the first color, so that the transmittance of the first color block 31 for the light of the first color from the first transparent portion 311 to the second transparent portion 312 is gradually changed, that is, the transmittance for the light of the first color from the first transparent portion 311 to the second transparent portion 312 gradually becomes lower, so that the display brightness of the display panel from a small viewing angle to a large viewing angle is transited uniformly, and the use experience of a user is improved.
Fig. 10 is a schematic partial cross-sectional view of still another display panel according to an embodiment of the present invention, as shown in fig. 10, optionally, the first transition light-transmitting portion 313 includes at least one first sub-transition light-transmitting portion, and as shown in fig. 10, by way of example, the first sub-transition light-transmitting portion includes a first transition light-transmitting portion 33 and a first second transition light-transmitting portion 34, where the transmittance of the first transition light-transmitting portion 33 for light of the first color is smaller than the transmittance of the first light-transmitting portion 311 for light of the first color, and is greater than the transmittance of the first second transition light-transmitting portion 34 for light of the first color; the transmittance of the first transition light-transmitting portion 34 to the light of the first color is greater than that of the second light-transmitting portion 312 to the light of the first color, so that the display brightness transition from the small viewing angle to the large viewing angle of the display panel is more uniform, and the use experience of the user is further improved. The number, transmittance, width range, etc. of the first sub-transition light-transmitting portions in the first transition light-transmitting portion 313 may be set according to actual requirements, which is not limited in the embodiment of the present invention.
Fig. 11 is a schematic partial cross-sectional view of a display panel according to another embodiment of the present invention, as shown in fig. 11, optionally, the second color block 32 further includes a second transitional transparent portion 323, the second transitional transparent portion 323 is located between the third transparent portion 321 and the fourth transparent portion 322, the transmittance of the third transparent portion 321 for light of the second color is smaller than the transmittance of the fourth transparent portion 322 for light of the second color, and the transmittance of the second transitional transparent portion 323 for light of the second color is greater than the transmittance of the fourth transparent portion 322 for light of the second color. According to the technical scheme, the transmittance of the second color block 32 to the light of the second color from the third light-transmitting portion 321 to the fourth light-transmitting portion 322 is gradually changed, namely, the transmittance of the second color from the third light-transmitting portion 321 to the fourth light-transmitting portion 322 is gradually reduced, so that the display brightness of the display panel from a small visual angle to a large visual angle is uniform in transition, and the use experience of a user is improved.
With continued reference to fig. 11, optionally, the second transition light-transmitting portion 323 includes at least one second sub-transition light-transmitting portion, and illustratively, as shown in fig. 11, the second sub-transition light-transmitting portion includes a second first transition light-transmitting portion 35 and a second transition light-transmitting portion 36, the transmittance of the second first transition light-transmitting portion 35 for light of the second color being less than the transmittance of the third light-transmitting portion 321 for light of the second color and being greater than the transmittance of the second transition light-transmitting portion 36 for light of the second color; the transmittance of the second transition light transmitting portion 36 to the light of the second color is greater than that of the fourth light transmitting portion 322 to the light of the second color, so that the display brightness transition from the small viewing angle to the large viewing angle of the display panel is more uniform, and the use experience of the user is further improved. The number, transmittance, width range, etc. of the second sub-transition light-transmitting portions in the second transition light-transmitting portion 323 can be set according to actual requirements, which is not limited in the embodiment of the present invention.
In other embodiments, the display panel may be any type of display panel, and those skilled in the art may set other functional film layers in the display panel according to actual needs, which is not limited in the embodiments of the present invention.
Fig. 12 is a schematic partial cross-sectional view of another display panel according to an embodiment of the present invention, and as shown in fig. 12, taking an OLED display panel as an example, the display panel according to an embodiment of the present invention further includes a pixel circuit layer located on one side of the substrate 10, where the pixel circuit layer includes an active layer 71, a gate insulating layer 72, a gate layer 73, an interlayer insulating layer 74, and a source/drain electrode layer 75 stacked on one side of the substrate 10. The sub-pixel includes an anode 81, a pixel defining layer 82, an organic light emitting layer 83, and a cathode layer 84, which are stacked, and electrons and holes are injected from the cathode layer 84 and the anode 81 to the organic light emitting layer 83, respectively, to form excitons in the organic light emitting layer 83 and excite light emitting molecules, thereby causing the organic light emitting layer 83 to emit visible light, and the "opening region 211" refers to a region where the organic light emitting layer 83 is located.
Based on the same inventive concept, the embodiment of the present invention further provides a display device, and fig. 13 is a schematic structural diagram of the display device provided in the embodiment of the present invention, as shown in fig. 13, where the display device 90 includes a display panel 91 according to any embodiment of the present invention, so that the display device 90 provided in the embodiment of the present invention has the technical effects of the technical solution in any embodiment, and the same or corresponding structure and explanation of terms as those of the embodiment are not repeated herein. The display device 90 provided in the embodiment of the present invention may be a mobile phone as shown in fig. 13, or any electronic product with a display function, including but not limited to the following categories: television, notebook computer, desktop display, tablet computer, digital camera, smart bracelet, smart glasses, vehicle-mounted display, medical equipment, industrial control equipment, touch interactive terminal, etc., which are not particularly limited in this embodiment of the invention.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (17)
1. A display panel, comprising:
a substrate, a plurality of sub-pixels positioned at one side of the substrate, wherein the sub-pixels comprise an opening area and a non-opening area;
the color film layer is positioned on one side of the sub-pixel, which is away from the substrate;
the color film layer comprises a plurality of color blocks, the color blocks are arranged corresponding to the sub-pixels, the projection of the color blocks on the plane of the substrate is covered by the projection of the corresponding sub-pixels on the substrate along a first direction, and the first direction is perpendicular to the plane of the substrate;
The sub-pixels comprise first sub-pixels which emit light of a first color, the color blocks comprise first color blocks, and the first color blocks correspond to the first sub-pixels; the first color block comprises a first light-transmitting part and a second light-transmitting part, and along the first direction, the projection of the first light-transmitting part on the plane of the substrate is overlapped with the projection of the opening area of the first sub-pixel on the substrate at least partially; along the first direction, the projection of the second light-transmitting part on the plane of the substrate and the projection of the non-opening area of the first sub-pixel on the substrate are overlapped at least partially, and the transmittance of the first light-transmitting part to the light of the first color is larger than that of the second light-transmitting part to the light of the first color;
the color of the first color block is the same as the color of the light of the first color;
the emergent light beam of the display panel comprises a first emergent light beam, wherein the first emergent light beam is a light beam of the first color emergent light through the first color block;
the first emergent light beam comprises a first emergent light beam and a first second emergent light beam, the first emergent light beam is a light beam of the first color emitted by the first light-transmitting part of the first color block, and the first second emergent light beam is a light beam of the first color emitted by the second light-transmitting part of the first color block.
2. The display panel according to claim 1, wherein the second light-transmitting portion is disposed around the first light-transmitting portion.
3. The display panel according to claim 1, wherein a projection of the first light transmitting portion on a plane of the substrate in the first direction covers a projection of the opening area of the first sub-pixel on the substrate.
4. The display panel of claim 1, wherein the first light-transmitting portion has a thickness D1 and the second light-transmitting portion has a thickness D2 along the first direction, wherein D1 < D2.
5. The display panel of claim 4, wherein d2 is less than or equal to 2 x D1.
6. The display panel according to claim 1, wherein the first light-transmitting portion is made of a first light-transmitting material, the second light-transmitting portion is made of a second light-transmitting material, and a transmittance of the first light-transmitting material to the light of the first color is larger than a transmittance of the second light-transmitting material to the light of the first color.
7. The display panel of claim 6, wherein a pigment doping concentration in the first light transmissive material is less than a pigment doping concentration in the second light transmissive material.
8. The display panel of claim 1, wherein the first outgoing light beam has a first viewing angle range and the first second outgoing light beam has a second viewing angle range, wherein the first viewing angle range is 0 ° to θ1, and the second viewing angle range is θ1 to 90 °,30 ° Σ 1 is Σ 60 °.
9. The display panel of claim 1, wherein the sub-pixel further comprises a second sub-pixel that emits light of a second color; the color block further comprises a second color block, and the second color block corresponds to the second sub-pixel; the second color block comprises a third light-transmitting part and a fourth light-transmitting part, and along the first direction, the projection of the third light-transmitting part on the plane of the substrate is overlapped with the projection of the opening area of the second sub-pixel on the substrate at least partially; along the first direction, the projection of the fourth light-transmitting part on the plane of the substrate and the projection of the non-opening area of the second sub-pixel on the substrate are overlapped at least partially, and the transmittance of the third light-transmitting part to the light of the second color is larger than that of the fourth light-transmitting part to the light of the second color;
The wavelength of the light of the first color is less than the wavelength of the light of the second color;
the boundary between the first light-transmitting part and the second light-transmitting part in the first color block is a first boundary, and the boundary between the third light-transmitting part and the fourth light-transmitting part in the second color block is a second boundary;
along a second direction, the shortest distance between the edge of the opening area of the first sub-pixel and the first boundary line is d1; along the second direction, a shortest distance between an edge of the opening area of the second sub-pixel and the second boundary line is d2; wherein d1 is less than d2; the second direction is perpendicular to the first direction.
10. The display panel of claim 1, wherein the sub-pixel further comprises a second sub-pixel that emits light of a second color; the color block further comprises a second color block, and the second color block corresponds to the second sub-pixel; the second color block comprises a third light-transmitting part and a fourth light-transmitting part, and along the first direction, the projection of the third light-transmitting part on the plane of the substrate is overlapped with the projection of the opening area of the second sub-pixel on the substrate at least partially; along the first direction, the projection of the fourth light-transmitting part on the plane of the substrate and the projection of the non-opening area of the second sub-pixel on the substrate are overlapped at least partially, and the transmittance of the third light-transmitting part to the light of the second color is larger than that of the fourth light-transmitting part to the light of the second color;
The wavelength of the light of the first color is less than the wavelength of the light of the second color;
the emergent light beam of the display panel also comprises a second emergent light beam, wherein the second emergent light beam is the light beam of the second color emergent from the second color block;
the second emergent beam comprises a second first emergent beam and a second emergent beam, the second first emergent beam is a beam of the light of the second color emergent through a third light-transmitting part of the second color block, and the second emergent beam is a beam of the light of the second color emergent through a fourth light-transmitting part of the second color block;
the first emergent beam has a first view angle range, the first second emergent beam has a second view angle range, the second first emergent beam has a third view angle range, and the second emergent beam has a fourth view angle range, wherein the first view angle range is 0-theta 1, the second view angle range is theta 1-90 degrees, the third view angle range is 0-theta 2, and the fourth view angle range is theta 2-90 degrees, and theta 1 is less than theta 2.
11. The display panel of claim 1, wherein the sub-pixel further comprises a second sub-pixel that emits light of a second color; the color block further comprises a second color block, and the second color block corresponds to the second sub-pixel; the second color block comprises a third light-transmitting part and a fourth light-transmitting part, and along the first direction, the projection of the third light-transmitting part on the plane of the substrate is overlapped with the projection of the opening area of the second sub-pixel on the substrate at least partially; along the first direction, the projection of the fourth light-transmitting part on the plane of the substrate and the projection of the non-opening area of the second sub-pixel on the substrate are overlapped at least partially, and the transmittance of the third light-transmitting part to the light of the second color is larger than that of the fourth light-transmitting part to the light of the second color;
The wavelength of the light of the first color is less than the wavelength of the light of the second color;
the first color block has a transmittance ratio n1=t1/T2 for the light of the first color, the second color block has a transmittance ratio n2=t3/T4 for the light of the second color, where n1 < n2,
t1 is the transmittance of the second light transmitting portion in the first color block to the light of the first color, T2 is the transmittance of the first light transmitting portion in the first color block to the light of the first color, T3 is the transmittance of the fourth light transmitting portion in the second color block to the light of the second color, and T4 is the transmittance of the third light transmitting portion in the second color block to the light of the second color.
12. The display panel of claim 1, wherein the color film layer further comprises a black matrix disposed between two adjacent color blocks;
the black matrix is used for shielding part of the emergent light beams so that the first emergent light beams have a fifth visual angle range, wherein the fifth visual angle range is 0-theta 5, and theta 5 is more than or equal to 30 degrees and less than or equal to 60 degrees.
13. The display panel of claim 1, wherein the color film layer further comprises a black matrix disposed between two adjacent color blocks;
The sub-pixels further include a second sub-pixel that emits light of a second color; the color block further comprises a second color block, and the second color block corresponds to the second sub-pixel; the second color block comprises a third light-transmitting part and a fourth light-transmitting part, and along the first direction, the projection of the third light-transmitting part on the plane of the substrate is overlapped with the projection of the opening area of the second sub-pixel on the substrate at least partially; along the first direction, the projection of the fourth light-transmitting part on the plane of the substrate and the projection of the non-opening area of the second sub-pixel on the substrate are overlapped at least partially, and the transmittance of the third light-transmitting part to the light of the second color is larger than that of the fourth light-transmitting part to the light of the second color;
the wavelength of the light of the first color is less than the wavelength of the light of the second color;
along a second direction, the shortest distance between the edge of the opening area of the first sub-pixel and the black matrix is d3; along the second direction, the shortest distance between the edge of the opening area of the second sub-pixel and the black matrix is d4; wherein d3 < d4; the second direction is perpendicular to the first direction.
14. The display panel of claim 1, wherein the color film layer further comprises a black matrix disposed between two adjacent color blocks;
the sub-pixels further include a second sub-pixel that emits light of a second color; the color block further comprises a second color block, and the second color block corresponds to the second sub-pixel; the second color block comprises a third light-transmitting part and a fourth light-transmitting part, and along the first direction, the projection of the third light-transmitting part on the plane of the substrate is overlapped with the projection of the opening area of the second sub-pixel on the substrate at least partially; along the first direction, the projection of the fourth light-transmitting part on the plane of the substrate and the projection of the non-opening area of the second sub-pixel on the substrate are overlapped at least partially, and the transmittance of the third light-transmitting part to the light of the second color is larger than that of the fourth light-transmitting part to the light of the second color;
the wavelength of the light of the first color is less than the wavelength of the light of the second color;
the emergent light beam of the display panel also comprises a second emergent light beam, wherein the second emergent light beam is the light beam of the second color emergent from the second color block;
The black matrix is used for shielding part of the emergent light beams so that the first emergent light beams have a fifth visual angle range and the second emergent light beams have a sixth visual angle range, wherein the fifth visual angle range is 0-theta 5, and the sixth visual angle range is 0-theta 6, and theta 5 is less than theta 6.
15. The display panel of any one of claims 9-11, 13, 14, wherein the first color is green or blue and the second color is red.
16. The display panel of claim 1, wherein the first color block further comprises a first transitional light transmission portion between the first light transmission portion and the second light transmission portion, wherein the first transitional light transmission portion has a smaller transmittance for light of a first color than the first light transmission portion, and wherein the first transitional light transmission portion has a larger transmittance for light of the first color than the second light transmission portion.
17. A display device comprising the display panel of any one of claims 1-16.
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| CN113130616B (en) * | 2021-04-20 | 2022-08-23 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
| CN116390542A (en) * | 2021-04-30 | 2023-07-04 | 上海天马微电子有限公司 | Display panel and display device |
| CN113328055B (en) * | 2021-05-31 | 2022-08-19 | 武汉天马微电子有限公司 | Display panel and display device |
| CN113328047B (en) * | 2021-06-02 | 2022-06-10 | 武汉天马微电子有限公司 | Display panel, manufacturing method thereof and display device |
| CN113471269B (en) * | 2021-06-30 | 2023-09-15 | 昆山国显光电有限公司 | Display panel, preparation method of display panel and display device |
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