CN111969032A

CN111969032A - Display panel and display device

Info

Publication number: CN111969032A
Application number: CN202010899794.5A
Authority: CN
Inventors: 冷传利; 安平
Original assignee: Shanghai Tianma Microelectronics Co Ltd
Current assignee: Shanghai Tianma Microelectronics Co Ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2020-11-20
Anticipated expiration: 2040-08-31
Also published as: CN111969032B

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 opening areas and non-opening areas, the color film layer comprises a plurality of color resistance blocks, the sub-pixels comprise first sub-pixels, the color resistance blocks comprise first color resistance blocks, the first color resistance blocks correspond to the first sub-pixels, the first color resistance 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 is at least partially overlapped with the projection of the opening areas of the first sub-pixels on the substrate, the projection of the second light-transmitting parts on the plane of the substrate is at least partially overlapped with the projection of the non-opening areas of the first sub-pixels on the substrate, and the transmittance of the first light-transmitting parts to the light of the first color is larger than the transmittance of the second light-transmitting parts to the light of the first color. The display panel and the display device provided by the invention reduce the reflection of external environment light and increase the light-emitting rate of the display panel.

Description

Display panel and display device

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

At present, in order to reduce the reflection of external light in an organic electroluminescent display panel, a polarizer is generally mounted on the light emitting surface of an OLED device. The transmittance of the polarizer is generally about 45%, and the reflectance at a viewing angle of 60 ° is about 15.5%. The polarizer can reduce the reflection of external ambient light, but also greatly loses the light extraction rate of the OLED device.

Disclosure of Invention

The invention provides a display panel and a display device, which can reduce the reflection of external environment light and increase the light-emitting rate of the display panel.

In a first aspect, an embodiment of the present invention provides a display panel, including:

the display device comprises a substrate base plate, a plurality of sub-pixels and a plurality of pixel units, wherein the sub-pixels are positioned on one side of the substrate base plate and comprise opening areas and non-opening areas;

the color film layer is positioned on one side of the sub-pixels, which is far away from the substrate base plate;

the color film layer comprises a plurality of color blocking blocks, the color blocking blocks are arranged corresponding to the sub-pixels, along a first direction, the projection of the color blocking blocks on the plane of the substrate base plate covers the projection of the corresponding sub-pixels on the substrate base plate, and the first direction is perpendicular to the plane of the substrate base plate;

the sub-pixels comprise first sub-pixels, the first sub-pixels emit light of a first color, the color blocking blocks comprise first color blocking blocks, and the first color blocking blocks correspond to the first sub-pixels; the first color blocking 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 base plate at least partially overlaps with the projection of the opening area of the first sub-pixel on the substrate base plate; along the first direction, the projection of the second light-transmitting part on the plane of the substrate base plate at least partially overlaps with the projection of the non-opening area of the first sub-pixel on the substrate base plate, 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 device, 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 comprises the first light transmission part corresponding to the light emitting area of the first sub-pixel and the second light transmission part corresponding to the non-light emitting area of the first sub-pixel, the light emitting efficiency of the first sub-pixel is ensured to be higher by arranging the first light transmission part to transmit light of the first color, the light transmission efficiency of the second light transmission part to the light of the first color is smaller by arranging the second light transmission part to shield the non-opening area to a certain extent, the external environment light is prevented from being reflected to human eyes by metal wires in the non-opening area to a certain extent, and 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, so that 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 taken along line A-A' of FIG. 1;

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 partial cross-sectional view illustrating a display panel according to another embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view taken along line B-B' of FIG. 1;

FIG. 7 is a schematic partial cross-sectional view of another display panel according to an embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view taken along line C-C' of FIG. 1;

FIG. 9 is a schematic partial cross-sectional view of another display panel according to an embodiment of the present invention;

FIG. 10 is a schematic partial cross-sectional view of another display panel according to an embodiment of the present invention;

FIG. 11 is a schematic partial cross-sectional view of another display panel according to an embodiment 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;

fig. 13 is a schematic structural diagram of a display device according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a cross section of fig. 1 along a direction a-a', as shown in fig. 1 and fig. 2, the display panel according to the embodiment of the present invention includes a substrate 10, a plurality of sub-pixels located on one side of the substrate 10, each sub-pixel includes an open area and a non-open area, a color film layer 11 located on one side of the sub-pixel facing away from the substrate 10, the color film layer 11 includes a plurality of color blocks, the color blocks are arranged corresponding to the sub-pixels, a projection of each color block on a plane where the substrate 10 is located covers a projection of the corresponding sub-pixel on the substrate 10 along a first direction X, and the first direction X is perpendicular to the plane where the substrate 10 is located. The sub-pixel comprises a first sub-pixel 21, the first sub-pixel 21 emits light of a first color, the color blocking block comprises a first color blocking block 31, the first color blocking block 31 corresponds to the first sub-pixel 21, the first color blocking 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 the plane of the substrate base plate 10 at least partially overlaps the projection of the opening area 211 of the first sub-pixel 21 on the substrate base plate 10; along the first direction X, a projection of the second light-transmitting portion 312 on the plane of the base substrate 10 at least partially overlaps a projection of the non-open area 212 of the first sub-pixel 21 on the base substrate 10, and a transmittance of the first light-transmitting portion 311 to light of the first color is greater than a transmittance of the second light-transmitting portion 312 to light of the first color.

Specifically, as shown in fig. 1 and fig. 2, a plurality of sub-pixels are disposed on one side of a substrate 10 of the display panel, each sub-pixel includes an open area and a non-open area, the open area is an effective light-emitting area of the sub-pixel, and the non-open area is provided with a metal trace for transmitting signals. One side that the sub-pixel deviates from substrate base plate 10 is provided with various rete 11, and various rete 11 includes a plurality of look and hinders the piece, and the look hinders the piece and corresponds the setting with the sub-pixel, and the look hinders the piece and is arranged in filtering the different light of its self colour in to external environment light, plays the effect of filtering. Along a first direction X, the projection of the color resist block on the plane where the substrate base plate 10 is located covers the projection of the corresponding sub-pixel on the substrate base plate 10, the color of the color resist block is the same as the color of the light emitted by the sub-pixel overlapped with the color resist block, so as to avoid the occurrence of mixed light, in other embodiments, the sub-pixel can emit white light, and a person skilled in the art can set the color resist block according to actual requirements, wherein the first direction X is perpendicular to the plane where the substrate base plate 10 is located.

Illustratively, with continuing 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, a projection of the first light-transmitting portion 311 on a plane of the substrate 10 at least partially overlaps a projection of the opening area 211 of the first sub-pixel 21 on the substrate 10, so as to ensure that a part of the light of the first color emitted by the first sub-pixel 21 is emitted through the first light-transmitting portion 311. Along the first direction X, the projection of the second light-transmitting portion 312 on the plane where the substrate 10 is located and the projection of the non-open area 212 of the first sub-pixel 21 on the substrate 10 are at least partially overlapped, so that it is ensured that the external ambient light is emitted through the second light-transmitting portion 312 by the partial light reflected by the film layers such as the metal routing in the non-open area 212. The first light transmission part 312 has a high transmittance to the light of the first color, so that the light extraction efficiency of the first sub-pixel 21 is high; the second light-transmitting part 312 is arranged to have a smaller transmittance to the light of the first color, and the reflected light of the metal wiring in the non-opening area 212 to the external environment light is weakened by the second light-transmitting part 312, so that the second light-transmitting part 312 can shield the non-opening area 212 to a certain degree, the external environment light is prevented from being reflected to human eyes by the metal wiring in the non-opening area 212 to a certain degree, and the reflectivity of the screen is effectively reduced.

According to the display panel provided by the embodiment of the invention, the color film layer is arranged on one side of the sub-pixels, which is far away from the substrate, and comprises the first light transmission part corresponding to the light emitting area of the first sub-pixels and the second light transmission part corresponding to the non-light emitting area of the first sub-pixels, the light emitting efficiency of the first sub-pixels is ensured to be higher by arranging the first light transmission part to transmit light of the first color, the light transmission efficiency of the second light transmission part to the light of the first color is smaller by arranging the second light transmission part to shield the non-opening area to a certain extent, the external environment light is prevented from being reflected to human eyes by metal wires in the non-opening area to a certain extent, and the screen reflectivity is effectively reduced. Compared with the prior art, the color film layer is used for replacing the polaroid in the prior art, so that 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, the second light-transmitting portion 312 is disposed around the first light-transmitting portion 311.

Exemplarily, as shown in fig. 1 and 2, a projection of the first light-transmitting portion 311 on a plane of the substrate 10 overlaps a projection of the opening region 211 of the first sub-pixel 21 on the substrate 10, so that light emitted from the opening region 211 of the first sub-pixel 21 is emitted 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 area 212 disposed around the opening area 211 in the first sub-pixel 21, which is helpful for shielding the metal wires in the non-opening area 212 to a certain extent, preventing the external ambient light from being reflected to the human eye by the metal wires in the non-opening area, and further reducing the screen reflectivity.

With continued reference to fig. 1 and 2, optionally, along the first direction X, a projection of the first light-transmitting portion 311 on a plane of the substrate 10 covers a projection of the opening region 311 of the first sub-pixel 31 on the substrate 10.

For example, as shown in fig. 1 and fig. 2, the projection of the first light-transmitting portion 311 on the plane of the substrate base plate 10 is set to cover the projection of the opening region 311 of the first sub-pixel 31 on the substrate base plate 10, so that the small-angle light emitted from the opening region 311 of the first sub-pixel 31 can be emitted through the first light-transmitting portion 311, the light emitting efficiency of the small-angle light of the display panel is improved, and the display effect of the display panel in the small-angle viewing field is improved.

With continued reference to fig. 2, optionally, along the first direction X, the thickness of the first light-transmitting portion 311 is D1, and the thickness of the second light-transmitting portion 312 is D2, where D1 < D2.

However, as the thickness of the color block is increased, the transmittance is decreased, and as shown in fig. 2, the transmittance of the first light transmission portion 311 is increased more than the transmittance of the second light transmission portion 312 by setting the thickness D1 of the first light transmission portion 311 to be smaller than the thickness D2 of the second light transmission portion 312. For example, the thickness D1 of the first light transmission portion 311 is smaller than the thickness D2 of the second light transmission portion 312, and the first light transmission portion 311 and the second light transmission portion 312 may be made of the same material, thereby reducing the complexity of the manufacturing process.

Optionally, D2 ≦ 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 region 311 of the first sub-pixel 31 is greatly attenuated by passing through the second light-transmitting portion 312, so that the light-emitting efficiency of the large-viewing-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 not more than 2 × D1, the transmittance of the second light transmission part 312 is prevented from being too small, and the attenuation of the second light transmission part 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 transmission portion 311 and the thickness D2 of the second light transmission portion 312 may be set according to actual needs, so as to adjust the transmittance of the first light transmission portion 311 and the second light transmission portion 312 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 according to 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-pixel away from the substrate 10, and is used for performing water and oxygen protection on the sub-pixel. The encapsulation layer 12 may be a thin film encapsulation layer, and the thin film encapsulation layer may include an inorganic layer/organic layer/inorganic layer three-layer structure, so as to isolate water vapor, and have the advantages of being light, thin, flexible, and the like. Illustratively, as shown in fig. 2, after the package layer 12 is planarized, the color film layer 11 is prepared on the side of the package 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 realize that the transmittance of the first light-transmitting portion 311 is greater than that of the second light-transmitting portion 312.

Fig. 3 is a partial cross-sectional view of a display panel according to an embodiment of the 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 set to 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 light-transmitting portion 311 is smaller than the thickness D2 of the second light-transmitting portion 312, and at the same time, the surface flatness of the color block is ensured, and the surface flatness of the display panel is improved.

Fig. 4 is a partial cross-sectional view of another display panel according to an embodiment of the present invention, as shown in fig. 4, optionally, the first light-transmitting portion 311 is made of a first light-transmitting material, and the second light-transmitting portion 312 is made of a second light-transmitting material, where a transmittance of the first light-transmitting material to light of the first color is greater than a transmittance of the second light-transmitting material to light of the first color.

The first light transmission part 311 is made of a first light transmission material with high transmittance for the first color light, and the second light transmission part 312 is made of a second light transmission material with low transmittance for the first color light, so that the transmittance of the first light transmission part 311 for the first color light is higher than that of the second light transmission part 312 for the first color light. For example, as shown in fig. 4, by using different materials to realize that the transmittance of the first light transmission portion 311 for the first color light is greater than that of the second light transmission portion 312 for the first color light, the thickness D1 of the first light transmission portion 311 may be set to be equal to the thickness D2 of the second light transmission portion 312, so as to improve the surface flatness of the display panel, wherein the first light transmission material and the second light transmission material may be selected according to the requirement on the light transmittance of the first light transmission portion 311 and the second light transmission portion 312.

Optionally, the pigment doping concentration in the first light-transmitting material is less than the pigment doping concentration in the second light-transmitting material.

Illustratively, the first light-transmitting material and the second light-transmitting material may be formed by mixing resin, pigment and the like, the transmittance of the first light-transmitting material and the second light-transmitting material is determined by the concentration of the pigment, the higher the concentration of the pigment is, the lower the transmittance is, and by adjusting the doping concentration of the pigment in the first light-transmitting material to be less than the doping concentration of the pigment in the second light-transmitting material, the transmittance of the first light-transmitting portion 311 to the light of the first color is greater than the transmittance of the second light-transmitting portion 312 to the light of the first color. 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 for the light transmittance of the first light-transmitting portion 311 and the second light-transmitting portion 312.

With continued reference to fig. 2-4, optionally, the outgoing light beam of the display panel includes a first outgoing light beam, which is a light beam of a first color that exits through the first color block 31. The first exit beam includes a first exit beam 41 and a first second exit beam 42, the first exit beam 41 is a first color light beam that exits through the first light-transmitting portion 311 of the first color block 31, and the first second exit beam 42 is a first color light beam that exits through the second light-transmitting portion 312 of the first color block 31. The first emergent light beam 41 has a first visual angle range, and the first second emergent light beam 42 has a second visual angle range, wherein the first visual angle range is 0-theta 1, the second visual angle range is theta 1-90 degrees, and theta 1 is more than or equal to 30 degrees and less than or equal to 60 degrees.

Specifically, as shown in fig. 2 to 4, the first outgoing beam emitted 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 emitted through the first light-transmitting portion 311, and since the first light-transmitting portion 311 has a large transmittance for the light of the first color, the attenuation of the first outgoing beam 41 is small; the first second emergent light beam 42 is emitted through the second light transmission part 312, and because the second light transmission part 312 has a small transmittance to the light of the first color, the attenuation of the first second emergent light beam 42 is large, the first visual angle range of the first emergent light beam 41 is set to be 0-theta 1, the second visual angle range of the first second emergent light beam 42 is theta 1-90 degrees, and theta 1 is more than or equal to 30 degrees and less than or equal to 60 degrees, so that the light emitting efficiency of the display panel in a certain angular view field is improved. For example, when θ 1 is 30 °, the light extraction efficiency of the display panel is high at a viewing angle within 30 °, and the display effect of the display panel at a viewing angle within 30 ° is ensured.

Fig. 5 is a schematic partial cross-sectional view of another display panel according to an embodiment of the present invention, and 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 encapsulation layer 12 is a thin film encapsulation layer, and the thin film encapsulation layer may include an inorganic layer/organic layer/inorganic layer three-layer structure, so as to isolate water vapor and have the advantages of being light, thin, flexible, and the like. In this embodiment, taking the package layer 12 including the first inorganic layer 121, the organic layer 122 and the second inorganic layer 123 as an example, since the refractive indexes of each layer and the color layer 11 in the package layer 12 are different, the light emitted from the sub-pixel may be deflected in the process of exiting to the air, for example, as shown in fig. 5, along the second direction Y, the lateral distance of the light emitted from the first sub-pixel 21 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 layer 11 is d, and finally the light exits at an angle θ 1. For example, table 1 lists the thickness, refractive index, and lateral distance of light deflected in each film layer when θ 1 is 10 ° for each film layer in the encapsulation layer 12 and the color film layer 11.

TABLE 1

	Thickness (μm)	Refractive index	Transverse distance (mum)
				Color film layer	2	1.5	0.2
Second inorganic layer	1	1.8	0.1
				Organic layer	10	1.47	1.2
A first inorganic layer	1	1.76	0.1

As shown in fig. 5 and table 1, the distance H that the light rays at each viewing angle move in the second direction Y in the encapsulation layer 12 and the color film layer 11 can be calculated according to the refractive indexes and thicknesses of the film layers in the encapsulation layer 12 and the color film layer 11, for example, in this embodiment, the distance H that the light rays at the viewing angle of 10 ° move in 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 according to the value of θ 1.

For example, when θ 1 is 30 °, the distance H that the light rays with the viewing angle of 30 ° move in the second direction Y in the package layer 12 and the color layer 11 is calculated according to the refractive indexes and thicknesses of the respective layers in the package layer 12 and the color layer 11, the position where the light rays with the viewing angle of 30 ° exit from the display panel is determined, and the boundary position between the first light transmitting portion 311 and the second light transmitting portion 312 is further determined, so that the light rays with the viewing angle of 30 ° or less of the display panel exit through the first light transmitting portion 311, and the light rays with the viewing angle of 30 ° to 90 ° of the display panel exit through the second light transmitting portion 312, thereby ensuring the display effect of the display panel with the viewing angle of 30 ° or less.

Fig. 6 is a schematic cross-sectional structure view along the direction B-B' in fig. 1, as shown in fig. 1 and fig. 6, optionally, 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, and the second color block 32 corresponds to the second sub-pixel 22. The second color block 32 comprises 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 where the substrate 10 is located at least partially overlaps a projection of the opening area 211 of the second sub-pixel 22 on the substrate 10. Along the first direction X, a projection of the fourth light-transmitting portion 322 on the plane of the substrate 10 at least partially overlaps a projection of the non-open area 212 of the second sub-pixel 22 on the substrate 10, 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. 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 resist block 31 is a first boundary line 51, and the boundary between the third light-transmitting portion 321 and the fourth light-transmitting portion 322 in the second color resist block 32 is a second boundary line 52. The shortest distance between the edge of the opening area 211 of the first sub-pixel 21 and the first boundary line 51 in the second direction Y is d1, and the shortest distance between the edge of the opening area 211 of the second sub-pixel 22 and the second boundary line 52 in 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 blocking block 32 comprises 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 area 211 of the second sub-pixel 22 on the substrate 10, so as to ensure that a part of light of the second color emitted by the second sub-pixel 22 is emitted through the third light-transmitting portion 321. Along the first direction X, a projection of the fourth light-transmitting portion 322 on the plane where the substrate 10 is located and a projection of the non-open area 212 of the second sub-pixel 22 on the substrate 10 are at least partially overlapped, so that it is ensured that a part of light reflected by the film layers such as the metal routing in the non-open area 212 of the external ambient light is emitted through the fourth light-transmitting portion 322. The third light transmission part 321 has a higher transmittance for the light of the second color, so that the light emitting efficiency of the second sub-pixel 22 is ensured to be higher; the fourth light-transmitting part 322 is arranged to have a smaller transmittance to light of the second color, and the reflected light of the metal wiring in the non-opening area 212 to the external environment light is weakened by the fourth light-transmitting part 322, so that the fourth light-transmitting part 322 plays a certain shielding role to the metal wiring in the non-opening area 212, the external environment light is prevented from being reflected to human eyes by the metal wiring in the non-opening area 212 to a certain extent, and the reflectivity of the screen is effectively reduced.

The light emitted by the display panel has an attenuation phenomenon under the condition of a large viewing angle, and the attenuation degrees of different colored lights are different due to different wavelengths of the colored lights with different colors, so that the color cast phenomenon is easily generated under the condition of the large viewing angle, and the display effect is influenced. For example, 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 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 line 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 line 52, more light of the second color with a large viewing angle is emitted through the third light-transmitting portion 321 under the condition of a large viewing angle, the light-emitting efficiency of the light of the second color under the condition of a large viewing angle is improved because the transmittance of the third light-transmitting portion 321 for the light of the second color is large, the light component of the second color with a large viewing angle is increased, and the color shift problem of the display panel under the condition of a large viewing angle is improved.

With continued reference to fig. 6, the sub-pixel further includes a second sub-pixel 22, the second sub-pixel 22 emitting light of a second color, the color block further includes a second color block 32, and 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 area 211 of the second sub-pixel 22 on the substrate 10. Along the first direction X, a projection of the fourth light-transmitting portion 322 on the plane of the substrate 10 at least partially overlaps a projection of the non-open area 212 of the second sub-pixel 22 on the substrate 10, 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 smaller than a wavelength of the second color. The outgoing light beam of the display panel includes a first outgoing light beam and a second outgoing light beam, the first outgoing light beam is a light beam of a first color and is emitted through the first color block 31, and the second outgoing light beam is a light beam of a second color and is emitted through the second color block 32. The first exit beam includes a first exit beam 41 and a first second exit beam 42, the second exit beam includes a second first exit beam 43 and a second exit beam 44, the first exit beam 41 is a first color light beam exiting through the first light transmitting portion 311 of the first color block 31, the first second exit beam 42 is a first color light beam exiting through the second light transmitting portion 312 of the first color block 31, the second first exit beam 43 is a second color light beam exiting through the third light transmitting portion 321 of the second color block 32, and the second exit beam 44 is a second color light beam exiting through the fourth light transmitting portion 322 of the second color block 32. The first emergent light beam 41 has a first visual angle range, the first second emergent light beam 42 has a second visual angle range, the second emergent light beam 43 has a third visual angle range, and the second emergent light beam 44 has a fourth visual angle range, wherein the first visual angle range is 0-theta 1, the second visual angle range is theta 1-90 degrees, the third visual angle range is 0-theta 2 degrees, the fourth visual angle range is theta 2-90 degrees, and theta 1 is smaller than theta 2 degrees.

Specifically, as shown in fig. 6, the first outgoing beam emitted 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 emitted through the first light-transmitting portion 311, and the first second outgoing beam 42 is emitted through the second light-transmitting portion 312; the second outgoing beam emitted through the second color block 32 includes a second outgoing beam 43 and a second outgoing beam 44, the second outgoing beam 43 is emitted through the third light transmission portion 321, and the second outgoing beam 44 is emitted through the fourth light transmission portion 322. Since the first light transmission section 311 has a large transmittance for light of the first color, the first light transmission section 41 has a small attenuation, the second light transmission section 312 has a small transmittance for light of the first color, the first second light transmission section 42 has a large attenuation, the third light transmission section 321 has a large transmittance for light of the second color, the second first light transmission section 43 has a small attenuation, the fourth light transmission section 322 has a small transmittance for light of the second color, the second light transmission section 44 has a large attenuation, the first light transmission section 41 has a first viewing angle range of 0 ° - θ 1, the first second light transmission section 42 has a second viewing angle range of θ 1-90 °, the second first light transmission section 43 has a third viewing angle range of 0 ° - θ 2, the fourth light transmission section 44 has a fourth viewing angle range of θ 2-90 °, and θ 1 < θ 2, the viewing angle range of the second light transmission section 43 is large, and the light extraction efficiency of light of the second color in a large viewing angle is improved, the light component of the second color with large viewing angle is increased, thereby improving the color shift problem of the display panel under the condition of large viewing angle.

Fig. 7 is a partial cross-sectional view of another display panel according to an 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, the color block further includes a second color block 32, and 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 area 211 of the second sub-pixel 22 on the substrate 10. Along the first direction X, a projection of the fourth light-transmitting portion 322 on the plane of the substrate 10 at least partially overlaps a projection of the non-open area 212 of the second sub-pixel 22 on the substrate 10, 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 smaller than a wavelength of the second color. The transmittance ratio n1 of the first color block 31 to the light of the first color is T1/T2, the transmittance ratio n2 of the second color block 32 to the light of the second color is T3/T4, where n1 is less than n2, T1 is the transmittance of the second light transmission portion 312 of the first color block 31 to the light of the first color, T2 is the transmittance of the first light transmission portion 311 of the first color block 31 to the light of the first color, T3 is the transmittance of the fourth light transmission portion 322 of the second color block 32 to the light of the second color, and T4 is the transmittance of the third light transmission portion 321 of the second color block 32 to the light of the second color.

Specifically, as shown in fig. 7, the transmittance ratio n1 of the first color resist block 31 to the light of the first color is T1/T2, the transmittance ratio n2 of the second color resist block 32 to the light of the second color is T3/T4, and n1 < n2 is provided, so that the transmittance of the fourth light transmission portion 322 to the light of the second color in the second color resist block 32 is relatively high, and the light of the second color with a large viewing angle is emitted through the fourth light transmission portion 322, so that the light extraction 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, optionally, the color film layer 11 further includes a black matrix 60 disposed between two adjacent color blocks, and the outgoing light beam of the display panel includes a first outgoing light beam, where the first outgoing light beam is a light beam of a first color that is outgoing through the first color block 31. The black matrix 60 is used for shielding part of the outgoing light beam so that the first outgoing light beam has a fifth viewing angle range, wherein the fifth viewing angle range is 0-theta 5, and theta 5 is greater than or equal to 30 degrees and less than or equal to 60 degrees.

Specifically, as shown in fig. 1 to 4, a black matrix 60 is disposed between two adjacent color blocking blocks, wherein the black matrix 60 can shield the metal wires located in the non-opening region 212, so as to prevent external ambient light from being reflected to human eyes by the metal wires and reduce the reflectivity of the display panel; meanwhile, the black matrix 60 can also shield oblique light rays emitted from the sub-pixels, so that a color mixing phenomenon caused by the fact that the oblique light rays are emitted from color resistance blocks corresponding to adjacent sub-pixels is avoided. By setting the range of the black matrix 60, the first emergent light beam has a fifth visual angle range of 0-theta 5, theta 5 is more than or equal to 30 degrees and less than or equal to 60 degrees, and the light extraction efficiency of the light of the display panel at the visual angle within theta 5 is ensured, so that the display panel can display at the visual angle within theta 5. It should be noted that θ 5 is larger than θ 1, so as to ensure that a part of the light of the first color emitted from the first sub-pixel 21 can exit through the second light-transmitting portion 312.

With reference to fig. 6, optionally, the color film layer 11 further includes a black matrix 60 disposed between two adjacent color-blocking blocks, each sub-pixel further includes a second sub-pixel 22, each second sub-pixel 22 emits light of a second color, each color-blocking block further includes a second color-blocking 32, each second color-blocking 32 corresponds to a corresponding second sub-pixel 22, each second color-blocking 32 includes a third light-transmitting portion 321 and a fourth light-transmitting portion 322, a projection of the third light-transmitting portion 321 on a plane where the substrate 10 is located and a projection of an opening area 211 of the second sub-pixel 22 on the substrate 10 at least partially overlap each other along the first direction X, a projection of the fourth light-transmitting portion 322 on a plane where the substrate 10 is located and a projection of a non-opening area 212 of the second sub-pixel 22 on the substrate 10 at least partially overlap each other along the first direction X, 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, the wavelength of the first color is less than the wavelength of the second color. The shortest distance between the edge of the opening area 211 of the first sub-pixel 21 and the black matrix 60 in the second direction Y is d 3; the shortest distance between the edge of the opening area 211 of the second sub-pixel 22 and the black matrix 60 in the second direction Y is d 4; wherein d3 is less than d 4; 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 condition of a large viewing angle, and since the third light-transmitting portion 321 has a relatively large transmittance for the light of the second color, the light-emitting efficiency of the light of the second color under the condition of a large viewing angle is improved, and the light component of the second color with a large viewing angle is increased, thereby improving the color cast problem of the display panel under the condition of a large viewing angle.

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 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 portion 321 and a fourth light-transmitting portion 322, a projection of the third light-transmitting portion 321 on a plane where the substrate 10 is located at least partially overlaps a projection of the open area 211 of the second sub-pixel 22 on the substrate 10 along the first direction X, a projection of the fourth light-transmitting portion 322 on a plane where the substrate 10 is located at least partially overlaps a projection of the non-open area 212 of the second sub-pixel 22 on the substrate 10 along the first direction X, a transmittance of the third light-transmitting portion 321 for the light of the second color is greater than a transmittance of the fourth light-transmitting portion 322 for the light of the second color, and a wavelength of the first color is smaller than a wavelength of the second color. The outgoing light beam of the display panel includes a first outgoing light beam and a second outgoing light beam, the first outgoing light beam is a light beam of a first color and is emitted through the first color block 31, and the second outgoing light beam is a light beam of a second color and is emitted 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 smaller than theta 6.

Specifically, as shown in fig. 6, the first outgoing beam emitted through the first color block 31 has a fifth viewing angle range of 0 to θ 5, the second outgoing beam emitted through the second color block 32 includes a sixth viewing angle range of 0 to θ 6, and by setting θ 5 < θ 6, the viewing angle range of the second outgoing beam is larger, the light extraction efficiency of the second color light at a large viewing angle is improved, the light component of the second color at a large viewing angle is increased, and thus the color shift problem of the display panel at a large viewing angle is improved.

Optionally, the first color is green or blue, and the second color is red.

With continuing 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, the attenuation of red light is larger in the case of a large viewing angle, and therefore, the image displayed by the display panel in the case of a large viewing angle is blue. Therefore, by improving the light extraction efficiency of red light at a large viewing angle, the red light component at the large viewing angle becomes larger, and the color shift problem of the display panel at the large viewing angle can be improved.

Fig. 8 is a schematic cross-sectional view along the direction C-C' of 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 in the case of a large viewing angle, and therefore, an image displayed by the display panel in the case of a large viewing angle is shifted to green. Therefore, by improving the light extraction efficiency of red light at a large viewing angle, the red light component at the large viewing angle becomes larger, and the color shift problem of the display panel at the large viewing angle can be improved.

Further, the display panel can include red sub-pixel, green sub-pixel and blue sub-pixel simultaneously to realize the colour display, because the wavelength of green light and blue light all is less than the wavelength of red light, under the condition of large viewing angle, the decay of red light is great, the image that the display panel shows under the condition of large viewing angle can be to bluish green. Therefore, the luminous efficiency of the green light and the blue light under the condition of large visual angle is set to be the same, the red light component with large visual angle can be increased, the luminous efficiency of the red light is improved, and the color cast problem of the display panel under the condition of large visual angle can be improved.

Fig. 9 is a partial cross-sectional schematic view of another display panel according to an embodiment of the present invention, as shown in fig. 9, optionally, the first color block 31 further includes a first transitional light-transmitting portion 313, the first transitional light-transmitting portion 313 is located between the first light-transmitting portion 311 and the second light-transmitting portion 312, a transmittance of the first transitional light-transmitting portion 313 to light of the first color is smaller than a transmittance of the first light-transmitting portion 311 to light of the first color, and a transmittance of the first transitional light-transmitting portion 313 to light of the first color is larger than a transmittance of the second light-transmitting portion 312 to light of the first color.

Specifically, as shown in fig. 9, a first transitional light-transmitting portion 313 is disposed between the first light-transmitting portion 311 and the second light-transmitting portion 312, and the transmittance of the first transitional light-transmitting portion 313 for the light of the first color is smaller than the transmittance of the first light-transmitting portion 311 for the light of the first color and larger than the transmittance of the second light-transmitting 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 is gradually changed from the first light-transmitting portion 311 to the second light-transmitting portion 312, that is, the transmittance for the light of the first color is gradually reduced from the first light-transmitting portion 311 to the second light-transmitting portion 312, thereby making the display luminance of the display panel transition from a small viewing angle to a large viewing angle uniform, and improving the user experience.

Fig. 10 is a schematic partial cross-sectional view of another display panel according to an embodiment of the present invention, as shown in fig. 10, optionally, the first transitional light-transmitting portion 313 includes at least one first sub transitional light-transmitting portion, exemplarily, as shown in fig. 10, the first sub transitional light-transmitting portion includes a first transitional light-transmitting portion 33 and a first second transitional light-transmitting portion 34, and a transmittance of the first transitional light-transmitting portion 33 for light of the first color is smaller than a transmittance of the first light-transmitting portion 311 for light of the first color and is greater than a transmittance of the first second transitional light-transmitting portion 34 for light of the first color; the transmittance of the first second 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 of the display panel from a small viewing angle to a large viewing angle is more uniform, and the use experience of a user is further improved. The number, transmittance, width range, and the like of the first sub-transitional light-transmitting portions 313 in the first transitional light-transmitting portion may be set according to actual requirements, which is not limited in the embodiment of the present invention.

Fig. 11 is a partial cross-sectional schematic view of another display panel according to an embodiment of the present invention, as shown in fig. 11, optionally, the second color blocking block 32 further includes a second transitional light-transmitting portion 323, the second transitional light-transmitting portion 323 is located between the third light-transmitting portion 321 and the fourth light-transmitting portion 322, a transmittance of the third light-transmitting portion 321 for light of the second color is smaller than a transmittance of the fourth light-transmitting portion 322 for light of the second color, and a transmittance of the second transitional light-transmitting portion 323 for light of the second color is larger than a transmittance of the fourth light-transmitting portion 322 for light of the second color. According to the technical scheme, the transmittance of the second color light from the third light transmission part 321 to the fourth light transmission part 322 of the second color blocking block 32 is gradually changed, that is, the transmittance of the second color light from the third light transmission part 321 to the fourth light transmission part 322 is gradually reduced, so that the display brightness of the display panel from a small viewing angle to a large viewing angle is uniform, and the use experience of a user is improved.

With continued reference to fig. 11, optionally, the second transitional light-transmitting portion 323 includes at least one second sub transitional light-transmitting portion, and exemplarily, as shown in fig. 11, the second sub transitional light-transmitting portion includes a second transitional light-transmitting portion 35 and a second diethyl transitional light-transmitting portion 36, and a transmittance of the second transitional light-transmitting portion 35 for the light of the second color is smaller than a transmittance of the third light-transmitting portion 321 for the light of the second color and is larger than a transmittance of the second diethyl transitional light-transmitting portion 36 for the light of the second color; the transmittance of the second right transition light-transmitting portion 36 for the light of the second color is greater than that of the fourth light-transmitting portion 322 for the light of the second color, so that the display brightness transition of the display panel from a small viewing angle to a large viewing angle is more uniform, and the use experience of a user is further improved. The number, transmittance, width range, and the like of the second sub-transitional light-transmitting portions in the second transitional 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 a person skilled in the art may set other functional film layers in the display panel according to actual requirements, which is not limited in the embodiments of the present invention.

Exemplarily, fig. 12 is a schematic partial cross-sectional view of another display panel provided in an embodiment of the present invention, and as shown in fig. 12, taking an OLED display panel as an example, the display panel provided in the 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 allowing the organic light emitting layer 83 to emit visible light, and the "open region 211" refers to a region where the organic light emitting layer 83 is located.

Based on the same inventive concept, an embodiment of the present invention further provides a display device, fig. 13 is a schematic structural diagram of the display device provided in the embodiment of the present invention, and as shown in fig. 13, 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 solutions in any embodiment, and explanations of structures and terms that are the same as or corresponding to the embodiments are not repeated herein. The display device 90 provided in the embodiment of the present invention may be a mobile phone shown in fig. 13, and may also be any electronic product with a display function, including but not limited to the following categories: the touch screen display system comprises a television, a notebook computer, a desktop display, a tablet computer, a digital camera, an intelligent bracelet, intelligent glasses, a vehicle-mounted display, medical equipment, industrial control equipment, a touch interaction terminal and the like, and the embodiment of the invention is not particularly limited in this respect.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. 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, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, comprising:

2. The display panel according to claim 1, wherein the second light-transmitting portion is provided around the first light-transmitting portion.

3. The display panel according to claim 1, wherein along the first direction, a projection of the first light-transmitting portion on a plane of the substrate covers a projection of an 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 of D1 and the second light-transmitting portion has a thickness of D2 along the first direction, wherein D1 < D2.

5. The display panel of claim 4, wherein D2 is ≦ 2 × D1.

6. The display panel according to claim 1, wherein the first light-transmitting portion is made of a first light-transmitting material, and the second light-transmitting portion is made of a second light-transmitting material, and wherein a transmittance of the first light-transmitting material for the light of the first color is larger than a transmittance of the second light-transmitting material for the light of the first color.

7. The display panel according to claim 6, wherein a pigment doping concentration in the first light-transmitting material is smaller than a pigment doping concentration in the second light-transmitting material.

8. The display panel according to claim 1, wherein the outgoing light beam of the display panel comprises a first outgoing light beam, and the first outgoing light beam is a light beam of the first color that is outgoing through the first color block;

the first emergent light beam comprises a first emergent light beam and a first emergent light beam, the first emergent light beam is a light beam of the first color and emitted through the first light transmission part of the first color block, and the first emergent light beam is a light beam of the first color and emitted through the second light transmission part of the first color block;

the first outgoing light beam has a first visual angle range, and the first second outgoing light beam has a second visual angle range, wherein the first visual angle range is 0-theta 1, the second visual angle range is theta 1-90 degrees, and theta 1 is more than or equal to 30 degrees and less than or equal to 60 degrees.

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 also comprises a second color block, and the second color block corresponds to the second sub-pixel; the second color blocking 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 at least partially overlaps with the projection of the opening area of the second sub-pixel on the substrate; along the first direction, the projection of the fourth light-transmitting part on the plane of the substrate base plate at least partially overlaps with the projection of the non-opening area of the second sub-pixel on the substrate base plate, 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 first color of light is less than the wavelength of the second color of light;

the boundary of the first light-transmitting part and the second light-transmitting part in the first color block is a first boundary line, and the boundary of the third light-transmitting part and the fourth light-transmitting part in the second color block is a second boundary line;

a shortest distance between an edge of an opening area of the first sub-pixel and the first boundary line in the second direction is d 1; a shortest distance between an edge of an opening area of the second sub-pixel and the second boundary line in the second direction is d 2; wherein d1 is less than d 2; 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 also comprises a second color block, and the second color block corresponds to the second sub-pixel; the second color blocking 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 at least partially overlaps with the projection of the opening area of the second sub-pixel on the substrate; along the first direction, the projection of the fourth light-transmitting part on the plane of the substrate base plate at least partially overlaps with the projection of the non-opening area of the second sub-pixel on the substrate base plate, 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 emergent light beams of the display panel comprise a first emergent light beam and a second emergent light beam, the first emergent light beam is a light beam of the first color and is emergent through the first color block, and the second emergent light beam is a light beam of the second color and is emergent through the second color block;

the first emergent beam comprises a first emergent beam and a first emergent beam, the second emergent beam comprises a second emergent beam and a second emergent beam, the first emergent beam is a beam of the first color which is emergent through a first light transmission part of the first color block, the first emergent beam is a beam of the first color which is emergent through a second light transmission part of the first color block, the second emergent beam is a beam of the second color which is emergent through a third light transmission part of the second color block, and the second emergent beam is a beam of the second color which is emergent through a fourth light transmission part of the second color block;

the first emergent light beam has a first visual angle range, the first second emergent light beam has a second visual angle range, the second emergent light beam has a third visual angle range, and the second emergent light beam has a fourth visual angle range, wherein the first visual angle range is 0-theta 1, the second visual angle range is theta 1-90 degrees, the third visual angle range is 0-theta 2, the fourth visual angle range is theta 2-90 degrees, and theta 1 is smaller 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 also comprises a second color block, and the second color block corresponds to the second sub-pixel; the second color blocking 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 at least partially overlaps with the projection of the opening area of the second sub-pixel on the substrate; along the first direction, the projection of the fourth light-transmitting part on the plane of the substrate base plate at least partially overlaps with the projection of the non-opening area of the second sub-pixel on the substrate base plate, 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 transmittance ratio n1 of the first color resist block to the light of the first color is T1/T2, the transmittance ratio n2 of the second color resist block to the light of the second color is T3/T4, wherein n1 is less than n2,

t1 is the transmittance of the first color light through the second light-transmitting portion in the first color block, T2 is the transmittance of the first color light through the first light-transmitting portion in the first color block, T3 is the transmittance of the second color light through the fourth light-transmitting portion in the second color block, and T4 is the transmittance of the second color light through the third light-transmitting portion in the second color block.

12. The display panel of claim 1, wherein the color film layer further comprises a black matrix disposed between two adjacent color blocks;

the emergent light beam of the display panel comprises a first emergent light beam, and the first emergent light beam is a light beam of the first color and emergent through the first color block;

the black matrix is used for shielding part of the emergent light beam so that the first emergent light beam has 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 comprise a second sub-pixel emitting light of a second color; the color block also comprises a second color block, and the second color block corresponds to the second sub-pixel; the second color blocking 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 at least partially overlaps with the projection of the opening area of the second sub-pixel on the substrate; along the first direction, the projection of the fourth light-transmitting part on the plane of the substrate base plate at least partially overlaps with the projection of the non-opening area of the second sub-pixel on the substrate base plate, 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;

a shortest distance between an edge of an opening area of the first sub-pixel and the black matrix in the second direction is d 3; a shortest distance between an edge of an opening area of the second sub-pixel and the black matrix along the second direction is d 4; wherein d3 is less than d 4; 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 black matrix is used for shielding part of the emergent light beam 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 smaller than theta 6.

15. A display panel as claimed in any one of claims 9-11, 13 and 14 wherein the first colour is green or blue and the second colour is red.

16. The display panel of claim 1, wherein the first color block further comprises a first transitional light transmitting portion between the first light transmitting portion and the second light transmitting portion, wherein the first transitional light transmitting portion has a lower transmittance for light of the first color than the first light transmitting portion, and wherein the first transitional light transmitting portion has a higher transmittance for light of the first color than the second light transmitting portion.

17. A display device characterized by comprising the display panel according to any one of claims 1 to 16.