CN113241417B

CN113241417B - Display panel and display device

Info

Publication number: CN113241417B
Application number: CN202110485247.7A
Authority: CN
Inventors: 夏兴达; 郭林山
Original assignee: Shanghai Tianma Microelectronics Co Ltd
Current assignee: Shanghai Tianma Microelectronics Co Ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2023-05-16
Anticipated expiration: 2041-04-30
Also published as: CN116390544A; CN116390543A; CN116390542A; CN116390541A; CN113241417A

Abstract

The embodiment of the application provides a display panel and a display device, wherein the display panel comprises a substrate base plate, a light-emitting layer, a color resistance layer and a shading layer; the light emitting layer is arranged on one side of the substrate base plate and comprises a plurality of light emitting devices; the color resistance layer comprises a plurality of color resistance blocks and is arranged on one side of the light emitting device facing the light emitting surface of the display panel along the thickness direction of the display panel; the light shielding layer is positioned on one side of the light emitting layer facing the light emitting surface of the display panel and comprises a plurality of first openings, and a first light shielding part is formed between two adjacent first openings; the projection of the first opening on the color resistance layer covers at least two color resistance blocks, and the colors of the two color resistance blocks covered by the first opening are different. The display panel and the display device provided by the embodiment of the application have higher display brightness and also have higher display brightness under a large viewing angle.

Description

Display panel and display device

[ field of technology ]

The application relates to the technical field of display, in particular to a display panel and a display device.

[ background Art ]

Self-luminous display gradually becomes a popular technology in the display field due to the advantages of low energy consumption, low cost, high response speed and the like, wherein organic diode light-emitting display and micro-diode light-emitting display gradually move to a mainstream display technology.

In the existing self-luminous display field, in order to reduce the brightness reduction caused by the reflection of external light by the light emitting device and to improve the purity of different colors of light of the display device, a light shielding structure and a color resistance layer are generally disposed on one side of the light emitting surface of the light emitting device. However, the existing self-luminous display screen has the problem of low brightness at a large viewing angle.

[ MEANS FOR SOLVING PROBLEMS ]

In view of the above, embodiments of the present application provide a display panel and a display device to solve the above problems.

In a first aspect, an embodiment of the present application provides a display panel, including a substrate, a light emitting layer, a color blocking layer, and a light shielding layer; the light emitting layer is arranged on one side of the substrate base plate and comprises a plurality of light emitting devices; the color resistance layer comprises a plurality of color resistance blocks and is arranged on one side of the light emitting device facing the light emitting surface of the display panel along the thickness direction of the display panel; the light shielding layer is positioned on one side of the light emitting layer facing the light emitting surface of the display panel and comprises a plurality of first openings, and a first light shielding part is formed between two adjacent first openings; the projection of the first opening on the color resistance layer covers at least two color resistance blocks, and the colors of the two color resistance blocks covered by the first opening are different.

In one implementation manner of the first aspect, in two adjacent first openings, the color of at least one color block covered by one first opening is different from the color of at least one color block covered by the other first opening.

In one implementation manner of the first aspect, among at least two color blocks covered by the projection of the first opening on the color blocking layer, two adjacent color blocks partially overlap to form the second light shielding portion.

In an implementation manner of the first aspect, in the projection of two adjacent first openings on the color resist layer, an area of the second light shielding portion covered by the projection of one first opening is different from an area of the second light shielding portion covered by the projection of the other first opening.

In one implementation manner of the first aspect, in a plane parallel to the substrate, a width of the first light shielding portion along the first direction is different from a width of the second light shielding portion along the first direction.

In one implementation manner of the first aspect, the light shielding layer further includes a second opening, and a projection of the second opening on the color blocking layer covers only one color blocking block.

In one implementation manner of the first aspect, the openings of the light shielding layer are distributed in a first repeating unit, and the first repeating unit includes at least two first openings and at least two second openings.

In one implementation manner of the first aspect, the number of second openings around two adjacent first openings is different.

In one implementation manner of the first aspect, the plurality of first openings includes a first sub-opening and a second sub-opening, a number of color blocks covered by a projection of the first sub-opening on the color resist layer is X1, and a number of color blocks covered by a projection of the second sub-opening on the color resist layer is X2, where X1 is not equal to X2.

In one implementation manner of the first aspect, the openings of the light shielding layer are distributed in a second repeating unit, and the second repeating unit includes at least two first sub-openings, at least two second sub-openings, and at least two second openings.

In one implementation manner of the first aspect, the number of second openings around two adjacent first sub-openings is different and/or the number of second openings around two adjacent second sub-openings is different.

In a second aspect, embodiments of the present application provide a display device including a display panel as provided in the first aspect.

In the display panel and the display device provided by the embodiment of the application, the color block blocks of at least two colors are exposed through the first opening, so that the light emitting area of the sub-pixel can be increased, the display brightness of the display panel and the display device is improved, and the display panel and the display device are guaranteed to have higher display brightness under a large visual angle.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a cross-sectional view of a display panel according to an embodiment of the present disclosure;

FIG. 2 is a cross-sectional view of another display panel according to an embodiment of the present disclosure;

FIG. 3 is a plan view of a light emitting layer and a color resist layer in a display panel according to an embodiment of the present disclosure;

FIG. 4 is a plan view of a light emitting layer and a color resist layer in another display panel according to an embodiment of the present disclosure;

FIG. 5 is a plan view of a light emitting layer and a color resist layer in a display panel according to another embodiment of the present disclosure;

FIG. 6 is a plan view of a circuit layer and a light-emitting layer in a display panel according to an embodiment of the present disclosure;

FIG. 7 is a plan view of a light emitting layer and a light shielding layer in another display panel according to an embodiment of the present disclosure;

fig. 8 is a schematic diagram of a display device according to an embodiment of the present application.

[ detailed description ] of the invention

For a better understanding of the technical solutions of the present application, embodiments of the present application are described in detail below with reference to the accompanying drawings.

It should be understood that the described embodiments are merely some, but not all, of the embodiments of the present application. All other embodiments, based on the embodiments herein, which would be apparent to one of ordinary skill in the art without making any inventive effort, are intended to be within the scope of the present application.

The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the description of the present specification, it is to be understood that the terms "substantially," "approximately," "about," "approximately," "substantially," and the like as used in the claims and examples herein refer to values that are generally agreed upon, rather than exact, within reasonable process operating ranges or tolerances.

It should be understood that although the terms first, second, third, etc. may be used in embodiments of the present application to describe light emitting devices, pixel circuits, etc., these light emitting devices, pixel circuits, etc. should not be limited to these terms. These terms are only used to distinguish the light emitting device, the pixel circuit, and the like from each other. For example, a first light emitting device may also be referred to as a second light emitting device, and similarly, a second light emitting device may also be referred to as a first light emitting device, without departing from the scope of embodiments of the present application.

The applicant has provided a solution to the problems existing in the prior art by intensive studies.

Fig. 1 is a cross-sectional view of a display panel according to an embodiment of the present application, fig. 2 is a cross-sectional view of another display panel according to an embodiment of the present application, fig. 3 is a plane projection view of a light emitting layer and a color blocking layer in a display panel according to an embodiment of the present application, and fig. 4 is a plane projection view of a light emitting layer and a color blocking layer in another display panel according to an embodiment of the present application.

As shown in fig. 1 and 2, the display panel 01 provided in the embodiment of the present application includes a substrate 10, a light emitting layer, a color blocking layer, a light shielding layer, a circuit layer, a first insulating layer 100, a touch layer, and the like disposed on one side of the substrate 10.

The circuit layer includes a plurality of pixel circuits 20, which are in one-to-one correspondence with the sub-pixels of the display panel 01, for providing driving voltages or driving currents required for the sub-pixels to emit light. It should be noted that fig. 1 only schematically illustrates that the display panel 01 includes the pixel circuit 20, and the actual pixel circuit may include at least two transistors, and may further include other electrical components, such as a resistor, a capacitor, and the like.

The light emitting layer includes a plurality of light emitting devices 30, and the plurality of light emitting devices 30 may include a plurality of first light emitting devices 31, a plurality of second light emitting devices 32, and a plurality of third light emitting devices 33, respectively, and the first light emitting devices 31, the second light emitting devices 32, and the third light emitting devices 33 correspond to different sub-pixels one by one. The pixel circuits 20 are electrically connected to the light emitting devices 30 in a one-to-one correspondence, and the driving voltage or driving current required by the pixel circuits 20 to provide the sub-pixel light emission is actually the driving voltage or driving current required for the light emitting devices 30 to emit light. Specifically, the plurality of pixel circuits 20 includes a first pixel circuit 21, a second pixel circuit 22, and a third pixel circuit 23, wherein the first pixel circuit 21 is electrically connected to the first light emitting device 31, the second pixel circuit 22 is electrically connected to the second light emitting device 32, and the third pixel circuit 23 is electrically connected to the third light emitting device 33.

The first insulating layer 100 is disposed between the circuit layer and the light emitting layer, and the first insulating layer 100 includes a plurality of via holes H0, and the pixel circuits 20 and the corresponding light emitting devices 30 are electrically connected through the via holes H0. The plurality of vias H0 include a first via H1, a second via H2, and a third via H3, the first light emitting device 31 may be electrically connected to the first pixel circuit 21 through the first via H1, the second light emitting device 32 may be electrically connected to the second pixel circuit 22 through the second via H2, and the third light emitting device 33 may be electrically connected to the second pixel circuit 23 through the third via H3.

The touch layer may include a plurality of touch electrodes 40, which may be transparent conductive electrodes insulated from each other or metal grid electrodes insulated from each other; the electrodes may be self-capacitance electrodes or mutual capacitance electrodes.

The color blocking layer comprises a plurality of color blocking blocks 50, and the color blocking blocks 50 are arranged in one-to-one correspondence with the light emitting devices 30. The color block 50 is disposed on a side of the light emitting device 30 facing the light emitting surface of the display panel 01 in the thickness direction Z of the display panel. The plurality of color blocks 50 may include a first color block 51, a second color block 52, and a third color block 53, where the first color block 51, the second color block 52, and the third color block 53 are color blocks 50 of different colors. The first color block 51 is disposed on the light emitting surface side of the first light emitting device 31 facing the display panel 01, the second color block 52 is disposed on the light emitting surface side of the second light emitting device 32 facing the display panel 01, and the third color block 53 is disposed on the light emitting surface side of the third light emitting device 33 facing the display panel 01.

Wherein the color of the light passing through the color block 50 may be filtered to be the same as the color of the color block 50. For example, the plurality of light emitting devices 30 emit white light, the white light emitted from the first light emitting device 31 passes through the first color block 51 and becomes first color light, the white light emitted from the second light emitting device 32 passes through the second color block 52 and becomes second color light, and the white light emitted from the third light emitting device 33 passes through the third color block 53 and becomes third color light. For example, the light emitting devices 30 may emit light of different colors, the first color light emitted by the first light emitting device 31 may be changed into a first color light having a purer chromaticity after passing through the first color blocking piece 51, the second color light emitted by the second light emitting device 32 may be changed into a second color light having a purer chromaticity after passing through the second color blocking piece 52, and the third color light emitted by the third light emitting device 33 may be changed into a third color light having a purer chromaticity after passing through the third color blocking piece 53.

Referring to fig. 1, 2, 3 and 4, the light shielding layer 60 is located at a side of the light emitting layer facing the light emitting surface of the display panel 01, and the light shielding layer 60 includes a plurality of first openings 61, and a first light shielding portion 610 is formed between two adjacent first openings 61. A first light shielding portion 610 is formed between two adjacent first openings 61. Along the thickness direction Z of the display panel, the projection of the first opening 61 on the color resist layer covers at least two color resist blocks 50, and the colors of the two color resist blocks 50 covered by the first opening 50 are different. For example, the projection of the first opening 61 on the color resist layer covers at least two color resist blocks 50 of the two color resist blocks 50, which are the first color resist block 51 and the second color resist block 52, respectively. That is, the first opening 61 provided on the light shielding layer 60 exposes at least the first color resist block 51 and the second color resist block 52 at the same time.

According to the embodiment of the application, the color resistance blocks of at least two colors are simultaneously exposed through the first opening 61, so that the light emitting area of the sub-pixel can be increased, the display brightness of the display panel 01 is improved, and the display panel 01 is ensured to have higher display brightness under a large viewing angle.

In one embodiment of the present application, as shown in fig. 3 and 4, of the two adjacent first openings 61, at least one color block 50 covered by one first opening 61 is different from at least one color block 50 covered by the other first opening 61.

In the display panel, the light emitted from the light emitting device 30 is diffracted due to the light shielding portion during the emission to the light emitting surface, thereby causing dispersion. In the embodiment of the present application, at least two color blocks 50 with different colors are respectively located in different first openings 61 in the color blocks 50 respectively covered by two adjacent first openings 61, and because the diffraction conditions near the adjacent first openings 61 are substantially the same, sub-pixels with different colors, which are close to each other, are substantially uniformly dispersed at the positions where the diffraction conditions are substantially the same, so as to ensure the uniformity of display.

In one implementation of the present embodiment, as shown in fig. 3, the light shielding layer 60 includes a plurality of second openings 62 in addition to the first openings 61. The projection of the first opening 61 onto the color resist layer covers two color resist blocks 50 and the projection of the second opening 62 onto the color resist layer covers only one color resist block 50. In the projection of the adjacent first openings 61 on the color blocking layer, two color blocking blocks 50 covered by one first opening 61 are the first color blocking block 51 and the second color blocking block 52 respectively, and two color blocking blocks 50 covered by the other first opening 61 are the first color blocking block 51 and the third color blocking block 53 respectively, and the projection of the second opening 62 of the third color blocking block 53 on the color blocking layer is the third color blocking block 53.

In another implementation of the present embodiment, as shown in fig. 4, the light shielding layer 60 includes a plurality of second openings 62 in addition to the first openings 61. Part of the first openings 61 are first sub-openings 61a, and the projection of the first sub-openings 61a on the color resistance layer covers two color resistance blocks 50 with different colors; the other part of the first openings 61 is a second sub-opening 61b, and the projection of the second sub-opening on the color resistance layer covers three color resistance blocks 50; the projection of the second opening 62 onto the color resist layer covers a color resist block. Specifically, the two color blocks 50 covered by the projection of the first sub-opening 61a on the color resist layer are the first color block 51 and the second color block 52 respectively; the three color blocks 50 covered by the projection of the second sub-opening 61b on the color resist layer are the first color block 51, the second color block 52 and the third color block 53, respectively.

In this embodiment, the second opening 62 exposes the third color block 53 that is not exposed by the first opening 61, so that the problem of the third color light when the display panel 01 displays can be improved to a certain extent, and the problem of the third color light when the display panel 01 displays can be effectively solved. In the embodiment, by flexibly setting the density of the second openings 62, the display brightness and the large visual character bias problem of the display panel 01 can be effectively improved. Further, the first color block 51 may be a red color block, the second color block 52 may be a green color block, and the third color block 53 may be a blue color block. In this embodiment, the light shielding portions are disposed around part of the blue blocks, and the other part of the blue blocks, the adjacent red blocks and the adjacent green blocks are simultaneously exposed by the first opening 61, so that the display brightness and the blue-shift problem of the large viewing angle of the display panel 01 can be effectively improved.

In one embodiment corresponding to this implementation, as shown in fig. 3 and 4, the openings of the light shielding layer 60 are distributed in a first repeating unit C1, and the first repeating unit C1 includes at least two first openings 61 and at least two second openings 62. That is, in the present embodiment, at least two first openings 61 and at least two second openings 62 form a first repeating unit C1, and the first repeating units C1 are repeatedly arranged, so that the first openings 61 and the second openings 62 are arranged in a specific rule.

In one technical solution corresponding to this implementation manner, the number of second openings 62 around two adjacent first openings 61 is different. In a preferred embodiment, the first openings 61 and the second openings 62 are arranged irregularly. Therefore, the arrangement rule of the openings can be broken, and the diffraction condition is weakened.

In one technical solution corresponding to the present embodiment, as shown in fig. 1 to 4, in at least two color blocks 50 covered by the projection of the first opening 61 on the color block layer, two adjacent color blocks 50 partially overlap to form the second light shielding portion 500. That is, among the color blocks 50 exposed by the first opening 61, there is an overlap between adjacent color blocks 50 to form the second light shielding portion 500. The color mixing problem in the area where adjacent sub-pixels are close to each other can be avoided.

As shown in fig. 3 and 4, when the first opening 61 exposes the two color blocks 50, the two color blocks 50 overlap to form the second light shielding portion 500 in the area where the two color blocks are close to each other; when the first opening 62 exposes three color blocks 50, there is also overlap of the three color blocks 50 in areas that are close to each other. In addition, the positions where the color blocks 50 overlap may be two colors of color blocks 50 overlapping, or three colors of color blocks 50 overlapping.

Further, when the first color block 51 is a red color block, the second color block 52 is a green color block, and the third color block 53 is a blue color block, the overlapping width of the third color block 53 and the adjacent first color block 51 and/or second color block 52 is larger than the overlapping width of the first color block 51 and the second color block 52 in the first color block 51, the second color block 52, and the third color block 53 which are simultaneously covered by the same first opening 61. Therefore, the light emitting areas of the sub-pixels corresponding to the first color block 51 and the second color block 52 can be increased, and the light emitting area of the third color block 53 is smaller, so that the blue color of the display panel 01 under a large viewing angle can be relieved.

In one implementation of the present disclosure, the width of the first light shielding portion 600 is different from the width of the second light shielding portion 500 in a plane parallel to the substrate 10. In a preferred embodiment, the width of the first light shielding part 600 may be greater than the width of the second light shielding part 500.

In one implementation manner of the present disclosure, in the projection of two adjacent first openings 61 on the color resist layer, the area of the second light shielding portion 500 covered by the projection of one first opening 61 is different from the area of the second light shielding portion 500 covered by the projection of the other first opening 61. In a preferred embodiment, in the projection of two adjacent first openings 61 onto the color resist layer, the width of the second light shielding portion 500 covered by the projection of one first opening 61 is different from the width of the second light shielding portion 500 covered by the projection of the other first opening 61.

For example, as shown in fig. 3, when projections of all the first openings 61 in the light shielding layer 60 cover two color blocks 50 and there is overlap between the two color blocks 50 to form the second light shielding portion 500, the second light shielding portion 500 covered by one first opening 61 of the two adjacent first openings 61 is specifically the second light shielding portion 500a, and the second light shielding portion 500 covered by the other first opening 61 is specifically the second light shielding portion 500b. The areas of the second

light shielding portions

500a and 500b are different, and specifically, the widths of the second

light shielding portions

500a and 500b are different.

For example, as shown in fig. 4, when a part of the first openings 61 is a first sub-opening 61a covering two color blocks 50 of different colors and another part of the first openings 61 is a second sub-opening 61b covering three color blocks 50, two first openings adjacent to the second sub-opening 61b and also adjacent therebetween are specifically a first sub-opening 61a, the second light shielding portions 500 covered by the two first sub-openings 61a are respectively a second light shielding portion 500a and a second light shielding portion 500b, and the second light shielding portion 500 covered by the second sub-opening 61b is specifically a second light shielding portion 500c. The areas of the second

light shielding portions

500a, 500b, and 500c are different from each other, and specifically, the widths of the second

light shielding portions

500a, 500b, and 500c are different from each other. The design can reduce the regularity of the shading part in a certain area, thereby reducing diffraction phenomenon.

Fig. 5 is a plan view of a light emitting layer and a color resist layer in a display panel according to another embodiment of the present disclosure.

In one embodiment of the present application, as shown in fig. 4 and 5, the plurality of first openings 61 includes a first sub-opening 61a and a second sub-opening 61b, the number of color blocks 50 covered by the projection of the first sub-opening 61a on the color resist layer is X1, and the number of color blocks 50 covered by the projection of the second sub-opening 61b on the color resist layer is X2, where X1 is not equal to X2. That is, the projection of the first sub-opening 61a onto the color resist layer is different from the projection of the second sub-opening 61b onto the color resist layer by the number of color resist blocks 50. For example, as shown in fig. 4 and 5, x1=2 and x2=3, that is, the projection of the first sub-opening 61a on the color resist layer covers two color resist blocks 50, and the projection of the second sub-opening 61b on the color resist layer covers three color resist blocks 50. The design can further reduce the regularity of the shading part within a certain area, thereby further reducing diffraction phenomenon.

In one implementation of the present embodiment, as shown in fig. 4, three color blocks 50 covered by the second sub-opening 61b are arranged in a straight line along the first direction X, and two color blocks 50 covered by the first sub-opening 61a are also arranged along the first direction X. For example, as shown in fig. 4, the second sub-openings 61b extend along the first direction X and the exposed first color blocks 51, second color blocks 52 and third color blocks 53 are arranged along the first direction X; the first sub-openings 61a extend along the first direction X while the exposed first color resist blocks 51 and second color resist blocks 52 are arranged along the first direction X.

In another implementation of the present embodiment, as shown in fig. 5, three color blocks 50 covered by the second sub-opening 61b are arranged in a "delta" shape, and two color blocks 50 covered by the first sub-opening 61a are arranged in a straight line along the first direction X. For example, as shown in fig. 5, among the first color block 51, the second color block 52 and the third color block 53 exposed by the second sub-opening 61b, the first color block 51 and the second color block 52 are arranged along the first direction X, and the third color block 53 and the first color block 51 and the second color block 52 are arranged along the second direction Y; the first sub-openings 61a extend along the first direction X and the exposed first color blocks 51 and second color blocks 52 are arranged along the first direction X.

In this embodiment, further, the light shielding layer further includes a second opening 62, and a projection of the second opening 62 on the color block layer covers only one color block 50.

In one implementation of the present embodiment, as shown in fig. 4, when three color blocks 50 covered by the second sub-openings 61b are arranged in a straight line along the first direction X, and two color blocks 50 covered by the first sub-openings 61a are also arranged along the first direction X, one color block 50 covered by the second openings 62 is arranged along the first direction X with two adjacent color blocks 50 covered by the first type openings 61 a. That is, as shown in fig. 4, the first sub-openings 61a extend along the first direction X while the exposed first color blocks 51 and second color blocks 52 are arranged along the first direction X, and the third color blocks 53 exposed by the adjacent second openings 62 are arranged along the first direction X with the first color blocks 51 and second color blocks 52.

In another implementation manner of the present embodiment, as shown in fig. 5, when the three color blocks 50 covered by the second sub-openings 61b are arranged in a "delta" shape and the two color blocks 50 covered by the first sub-openings 61a are also arranged along the first direction X, the two color blocks covered by the first sub-openings 61a and the one color block 50 covered by the adjacent one of the second openings 62 are arranged in a "delta" shape. That is, the first sub-openings 61a extend along the first direction X while the exposed first color blocks 51 and second color blocks 52 are arranged along the first direction X, and the third color blocks 53 exposed by the adjacent second openings 62 are arranged along the second direction Y with the first color blocks 51 and second color blocks 52.

In one embodiment corresponding to the present implementation, as shown in fig. 4 and 5, the openings of the light shielding layer 60 are distributed in a second repeating unit distribution C2, and the second repeating unit C2 includes at least two first sub-openings 61a, at least two second sub-openings 61b, and at least two second openings 62. That is, in the present embodiment, at least two first sub-openings 61a, at least two second sub-openings 61b and at least two second openings 62 form a second repeating unit C2, and the second repeating units C2 are repeatedly arranged, so that the first sub-openings 61a, the second sub-openings 61b and the second openings 62 are arranged in a specific rule.

In one technical solution corresponding to this implementation manner, the number of second openings 62 around two adjacent first sub-openings 61a is different and/or the number of second openings 62 around two adjacent second sub-openings 61b is different. In a preferred embodiment, the first sub-openings 61a, the second sub-openings 61b and the second openings 62 are arranged irregularly.

Fig. 6 is a plane projection view of a circuit layer and a light emitting layer in a display panel according to an embodiment of the present application, and fig. 7 is a plane projection view of a light emitting layer and a light shielding layer in another display panel according to an embodiment of the present application.

In the embodiment of the present application, the light emitting device 30 may be an organic light emitting device, and the light emitting device 30 includes an anode, a cathode, and an organic light emitting layer disposed between the anode and the cathode. Specifically, the first light emitting device 31 may include a first anode 311, a first cathode 312, and a first organic light emitting layer 313 disposed between the first anode 311 and the first cathode 312; the second light emitting device 32 may include a second anode 321, a second cathode 322, and a second organic light emitting layer 323 disposed between the second anode 321 and the second cathode 322; the third light emitting device 33 may include a third anode 331, a third cathode 332, and a third organic light emitting layer 333 disposed between the third anode 331 and the third cathode 332. The first cathode 312, the second cathode 322, and the third cathode 332 may be electrically connected to form a transparent conductive electrode, and the first anode 311, the second anode 323, and the third anode 333 may be metal electrodes.

In one embodiment of the present application, the plurality of light emitting devices 30 includes a first type of light emitting device, the plurality of pixel circuits 20 includes a first type of pixel circuit, and the plurality of vias H0 includes a first type of via, wherein the first type of light emitting device is electrically connected to the first type of pixel circuit through the first type of via. In a plane perpendicular to the thickness direction Z of the display panel 01, the first type light emitting devices are separated from the corresponding first type vias; the first light shielding portion 600 of the light shielding layer 60 covers the first type of via holes in the thickness direction Z of the display panel 01.

As shown in fig. 6, in the display panel 01 provided by the embodiment of the present application, a plurality of pixel circuits 20 included in a circuit layer are arranged in a matrix along a first direction X and a second direction Y, so as to facilitate arrangement of signal lines and improve space utilization of the pixel circuits 20; the plurality of light emitting devices 30 in the light emitting layer are arranged in the first direction X to form a light emitting device column, and the light emitting devices in adjacent light emitting device columns are arranged in a staggered manner so as to perform rendering and improve white balance effects. Referring to fig. 6, a portion of the light emitting devices 30 (i.e., the first type of light emitting devices) are separated from the corresponding via holes (i.e., the first type of via holes), and the portion of the light emitting devices 30 (i.e., the first type of light emitting devices) are electrically connected to the corresponding pixel circuits 20 (i.e., the first type of pixel circuits) through the connection electrodes 200 extending to the areas where the corresponding via holes (i.e., the first type of via holes) are located.

Referring to fig. 6 and 7, the light emitting devices (i.e., the first type light emitting devices) separated from the corresponding via holes (i.e., the first type via holes) are covered by the first light shielding portion 600 of the light shielding layer 60.

For example, as shown in fig. 6, the third light emitting device 33 is a first type light emitting device, the third via H3 is a first type via, and the third pixel circuit 23 is a first type pixel circuit, and then the third light emitting device 33 is separated from the corresponding third via H3. The third anode 331 of the third light emitting device 33 is electrically connected to the corresponding third pixel circuit 23 after extending to the third via hole H3 through the connection electrode 200. Referring to fig. 6 and 7, the third via H3 is not covered by the third anode 331, but the third via H3 is covered by the first light shielding portion 600 of the light shielding layer 60.

Since the first type via is separated from the corresponding first type light emitting device, the first type via is not covered by the anode of the first type light emitting device. In this embodiment of the present application, by covering the first light shielding portion 600 of the light shielding layer 60 with the first type of via hole, reflection of the connection electrode 200 in the first type of via hole to the external environment light can be avoided, so as to solve the problem of chromatic dispersion of the sub-pixels around the first type of via hole.

Further, the first light shielding portion 600 of the light shielding layer 60 also covers the connection electrode.

In the embodiment of the present application, please continue to refer to fig. 6, the plurality of light emitting devices 30 may further include a second type light emitting device, the plurality of pixel circuits 20 includes a second type pixel circuit, and the plurality of vias H0 includes a second type via, wherein the second type light emitting device is electrically connected to the second type pixel circuit through the second type via. The second type light emitting device covers the second type via hole corresponding to the second type light emitting device along the thickness direction Z of the display panel 01, and the first light shielding portion 600 of the light shielding layer 60 is separated from the second type via hole in a plane perpendicular to the thickness direction Z of the display panel 01. That is, in the display panel 01, the anode of the second type light emitting device covers the second type via corresponding to the second type light emitting device, and the first light shielding portion 600 of the light shielding layer 60 does not need to cover the second type via.

For example, as shown in fig. 6, the second light emitting device 32 is a second type light emitting device, the second via H2 is a second type via, and the second pixel circuit 22 is a second type pixel circuit, and the second light emitting device 32 covers the corresponding second via H2. The second anode 321 of the second light emitting device 32 is electrically connected to the corresponding second pixel circuit 22 directly through the second via H2 thereunder. Referring to fig. 6 and 7, the second via H2 is covered by the second anode 321, but is not covered by the first light shielding portion 600 of the light shielding layer 60.

In the embodiment of the application, since the second type via hole is covered by the corresponding second type light emitting device, and the light shielding part of the light shielding layer at the light emitting surface side of the second type light emitting device does not cover the area where the second type via hole is located, the light emitting rate of the sub-pixel corresponding to the second type light emitting device can be increased.

In the embodiment of the present application, please continue to refer to fig. 6, a third type of light emitting device may be further included in the plurality of light emitting devices 30, a third type of pixel circuit is included in the plurality of pixel circuits 20, and a third type of via hole is included in the plurality of via holes H0, wherein the third type of light emitting device and the third type of pixel circuit are electrically connected through the third type of via hole. Along the thickness direction Z of the display panel 01, the third type light emitting device covers a partial area of the third type via corresponding to the third type light emitting device; in a plane perpendicular to the thickness direction Z of the display panel 01, the third type light emitting device is separated from another portion of the third type via hole corresponding to the third type light emitting device. In the thickness direction Z of the display panel 01, a portion of the third-type via hole not covered by the third-type light emitting device is covered by the first light shielding portion 600 of the light shielding layer 60. That is, in the display panel 01, the anode of the third type light emitting device covers only a partial region of the third type via corresponding to the third type light emitting device, and the first light shielding portion 600 of the light shielding layer 60 covers a region of the third type via not covered by the third type light emitting device. Further, the first light shielding portion 600 of the light shielding layer 60 may be separated from the region covered by the third type light emitting device in the third type via hole.

For example, as shown in fig. 6, the first light emitting device 31 is a third type light emitting device, the first via H1 is a third type via, and the first pixel circuit 21 is a third type pixel circuit, and then the first light emitting device 31 covers a partial area of the corresponding first via H1 and is separated from another partial area of the first via H1. The first anode 311 of the first light emitting device 31 is electrically connected to the corresponding first pixel circuit 21 directly through the first via H1 thereunder. Referring to fig. 6 and 7, the region of the first via H1 that is covered by the first anode 311 is not covered by the first light shielding portion 600 of the light shielding layer 60, and the region of the first via H1 that is not covered by the first anode 311 is covered by the first light shielding portion 600 of the light shielding layer 60.

That is, the first via H1 is covered with either the first anode 311 or the first light shielding portion 600 of the light shielding layer 60. The dispersion problem caused by the reflection of external light can be avoided while the sub-pixel corresponding to the third type of light emitting device is ensured to have the maximum light emitting area.

Fig. 8 is a schematic diagram of a display device provided in an embodiment of the present application, and as shown in fig. 8, the display device provided in the embodiment of the present application may be a mobile phone, and in addition, the display device provided in the embodiment of the present application may also be a display device of a computer, a television, or the like. The display device provided by the embodiment of the application includes the display panel 01 provided by any one of the embodiments.

In the display device provided by the embodiment of the application, the light emitting areas of at least two color sub-pixels are increased, and the display brightness of the display device is improved, namely, the display brightness of the display device under a large viewing angle is also improved.

The foregoing description of the preferred embodiments of the present invention is not intended to limit the invention to the precise form disclosed, and any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A display panel, comprising:

a substrate base;

a light emitting layer disposed on one side of the substrate base plate, the light emitting layer including a plurality of light emitting devices;

the color resistance layer comprises a plurality of color resistance blocks, and the color resistance blocks are arranged on one side of the light emitting device facing the light emitting surface of the display panel along the thickness direction of the display panel;

the light shielding layer is positioned on one side of the light emitting layer facing the light emitting surface of the display panel and comprises a plurality of first openings, and a first light shielding part is formed between two adjacent first openings; the projection of the first opening on the color resistance layer at least covers two color resistance blocks, and the colors of the two color resistance blocks covered by the first opening are different;

and in at least two color blocks covered by the projection of the first opening on the color block layer, two adjacent color blocks are partially overlapped to form a second shading part.

2. The display panel of claim 1, wherein, of the two adjacent first openings, at least one of the color blocks covered by one of the first openings is different from the color of at least one of the color blocks covered by the other of the first openings.

3. The display panel according to claim 1, wherein in the projection of two adjacent first openings onto the color resist layer, an area of the second light shielding portion covered by the projection of one of the first openings is different from an area of the second light shielding portion covered by the projection of the other of the first openings.

4. The display panel according to claim 1, wherein a width of the first light shielding portion is different from a width of the second light shielding portion in a plane parallel to the substrate.

5. The display panel of claim 2, wherein the light shielding layer further comprises a second opening, a projection of the second opening onto the color block layer covering only one of the color blocks.

6. The display panel of claim 5, wherein the openings of the light shielding layer are distributed in first repeating units, the first repeating units including at least two first openings and at least two second openings.

7. The display panel according to claim 5, wherein two adjacent first opening circumferences DD210073I

The number of second openings is different.

8. The display panel of claim 1, wherein the plurality of first openings comprises a first sub-opening and a second sub-opening, the first sub-opening having a projected coverage of X1 for a number of color blocks on the color resist layer, the second sub-opening having a projected coverage of X2 for a number of color blocks on the color resist layer, wherein X1 is not equal to X2.

9. The display panel of claim 8, wherein the light shielding layer further comprises a second opening, a projection of the second opening onto the color block layer covering only one of the color blocks.

10. The display panel of claim 9, wherein the openings of the light shielding layer are distributed in a second repeating unit comprising at least two first sub-openings, at least two second sub-openings, and at least two second openings.

11. The display panel according to claim 9, wherein the number of second openings around two adjacent first sub-openings is different and/or the number of second openings around two adjacent second sub-openings is different.

12. A display device comprising a display panel according to any one of claims 1-11.