Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device, and the display panel comprises a driving substrate which comprises a plurality of pixel regions and spacer regions between the pixel regions; the light-emitting layer is located on one side of the driving substrate and comprises light-emitting units located in a plurality of pixel areas; the light filtering layer is located on the side, away from the driving substrate, of the light emitting layer and comprises light filtering parts located in a plurality of pixel areas, and each light filtering part corresponds to one light emitting unit; the barrier layer and the light filtering layer are arranged on the same layer, the barrier layer is located in the spacer region, and the orthographic projection of the barrier layer on the driving substrate and the orthographic projection of the light filtering part on the driving substrate are not overlapped.

Description

Technical Field

[0001] This invention relates to the field of display technology, and in particular to a display panel and display device. Background Technology

[0002] With the continuous development of display technology, silicon-based OLED (Organic Light Emitting Diode) display products have attracted widespread attention due to their advantages such as high resolution, low power consumption, small size, light weight, and high contrast. They have good application prospects in high-resolution near-eye display industries such as wearable devices, industrial security, and medical devices, and are developing towards high color gamut and high brightness.

[0003] However, current silicon-based OLEDs generally use a white light source plus a color filter (CF) structure to achieve color display. At a normal viewing angle, the CF can effectively filter the white light source below. However, when the angle is deviated, the light from the white light source will enter the CF corresponding area of ​​other colors, causing strong stray light to be emitted last, affecting the display effect of the product. Summary of the Invention

[0004] The purpose of this invention is to provide a display panel and display device to solve the problem of stray light appearing in silicon-based OLED display panels at wide viewing angles, which affects the purity of the image viewed directly from the display panel.

[0005] The specific technical solution is as follows:

[0006] A first aspect of this application provides a display panel, comprising:

[0007] The driving substrate includes multiple pixel areas and spacing areas between the pixel areas;

[0008] A light-emitting layer, located on one side of the driving substrate, includes light-emitting units located in a plurality of pixel regions;

[0009] A filter layer is located on the side of the light-emitting layer away from the driving substrate, and includes filter portions located in a plurality of pixel regions, each filter portion corresponding to a light-emitting unit;

[0010] A blocking layer is disposed in the same layer as the filter layer. The blocking layer is located in the interval area. The orthographic projection of the blocking layer on the driving substrate does not overlap with the orthographic projection of the filter portion on the driving substrate.

[0011] In some embodiments, the filter layer includes a first filter layer, a second filter layer, and a third filter layer, which are disposed sequentially away from the light-emitting layer. Each of the first filter layer, the second filter layer, and the third filter layer extends from its corresponding pixel region to an adjacent gap region. Any two adjacent layers of the first filter layer, the second filter layer, and the third filter layer form the blocking layer in the portion of the gap region projected onto the driving substrate.

[0012] In some embodiments, the filter layer includes a first filter layer, a second filter layer, and a third filter layer, wherein the first filter layer, the second filter layer, and the third filter layer are disposed sequentially away from the light-emitting layer, and the first filter layer, the second filter layer, and the third filter layer all extend from their respective corresponding pixel areas to the spacing area on the same layer. The first filter layer, the second filter layer, and the third filter layer form the blocking layer in the portion of the spacing area projected onto the driving substrate.

[0013] In some embodiments, the filter layer includes a first filter layer, a second filter layer, and a third filter layer disposed in the same layer, and the blocking layer includes a light-shielding layer disposed in the same layer as the first filter layer, the second filter layer, and the third filter layer. The light-shielding layer is located in the interval region and is located between any two adjacent layers of the first filter layer, the second filter layer, and the third filter layer.

[0014] In some embodiments, the filtering portion includes the first filter layer, the second filter layer, and the third filter layer located on the portion of the pixel region projected onto the driving substrate.

[0015] In some embodiments, the first filter layer, the second filter layer, or the third filter layer is any one of a red filter layer, a green filter layer, and a blue filter layer, and the first filter layer, the second filter layer, and the third filter layer are different from each other.

[0016] In some embodiments, the orthographic projection of the light-shielding layer onto the driving substrate does not overlap with the orthographic projection of the light-emitting unit onto the driving substrate.

[0017] In some embodiments, the orthographic projection of the light-emitting unit onto the driving substrate is located within the orthographic projection range of the filter portion onto the driving substrate.

[0018] In some embodiments, an encapsulation layer is provided between the light-emitting layer and the filter layer;

[0019] The filter layer has microlenses arranged on the side away from the driving substrate. Each microlens corresponds to a light-emitting unit. The orthogonal projection of any light-emitting unit and the corresponding filter onto the driving substrate is located within the orthogonal projection range of the corresponding microlens onto the driving substrate.

[0020] A second aspect of this application provides a display device including the display panel described in any of the first aspects.

[0021] Beneficial effects of the embodiments of the present invention:

[0022] The display panel and display device provided in this embodiment of the invention increase the distance between adjacent sides of the filter section by adding an interval area and setting a blocking layer in the same layer as the filter layer in the interval area. This effectively prevents the light-emitting unit from emitting light into the adjacent filter layer at a wide viewing angle, and also effectively prevents the light emitted by the light-emitting unit into the corresponding filter section from being deflected by the filter section and emitted into the adjacent pixel area. This reduces stray light, improves the color purity of the display panel at the normal viewing angle, and effectively reduces color shift at a wide viewing angle. Even if light emitted by the light-emitting unit at a wide viewing angle passes through the interval area, the blocking layer effectively blocks the light, effectively preventing it from being emitted through the corresponding area of ​​the adjacent pixel area.

[0023] Of course, implementing any product or method of the present invention does not necessarily require achieving all of the advantages described above at the same time. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings.

[0025] Figure 1 A cross-sectional view of a display panel according to one embodiment;

[0026] Figure 2 This is a cross-sectional view of a display panel with a first filter layer arrangement according to an embodiment of this application;

[0027] Figure 3 This is a cross-sectional view of a display panel with a second filter layer arrangement according to an embodiment of this application;

[0028] Figure 4 This is a cross-sectional view of a display panel with a third filter layer arrangement according to an embodiment of this application;

[0029] Figure 5 This is a cross-sectional view of a display panel with a fourth filter layer arrangement according to an embodiment of this application;

[0030] Figure 6This is another cross-sectional view of a display panel according to an embodiment of this application;

[0031] Figure 7 This is a cross-sectional view of another display panel according to an embodiment of this application.

[0032] The reference numerals in the attached figures are as follows: pixel area A, spacing area B, filter layer 3, light-emitting unit 5, encapsulation layer 6, microlens 7, planarization layer 8, adhesive 9, cover plate 10, first filter layer 31, second filter layer 32, third filter layer 33, light-shielding layer 41, first light-emitting unit 51, second light-emitting unit 52, third light-emitting unit 53. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art based on this application are within the scope of protection of the present invention.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] In this specification, the terms "film" and "layer" may be interchanged. For example, "conductive layer" may sometimes be replaced with "conductive film." Similarly, "insulating film" may sometimes be replaced with "insulating layer."

[0036] In this specification, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they may refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection via an intermediate component, or a connection within two components. Those skilled in the art will understand the meaning of these terms in this disclosure as appropriate.

[0037] refer to Figure 1As shown, the encapsulation layer 6 (Thin Film Encapsulation, TFE) protects the light-emitting unit 5 by isolating it from water and oxygen. The filter layer (3-Color Filter, CF) allows monochromatic light to pass through by absorbing light of specific wavelengths. The planarization layer planarizes the FTE and CF, and the microlens 7 converges the light transmitted through the CF to achieve light emission. At a normal viewing angle, the CF can effectively filter the light emitted by the light-emitting unit. However, at a wide viewing angle, for example, some of the light passing through the red filter layer will be deflected and emitted through the corresponding area of ​​the green filter layer. Correspondingly, the light passing through the green filter layer and the deflected red light will both be emitted from the corresponding area of ​​the green filter layer, forming stray light. This can easily affect the color purity of the corresponding area of ​​the green filter layer at a normal viewing angle. At the same time, the corresponding area of ​​the green filter layer is prone to color shift at wide viewing angles, affecting the display effect of the display panel.

[0038] Based on this, refer to Figure 2 , Figure 6 and Figure 7 As shown, this application embodiment provides a display panel, including: a driving substrate (not shown in the figure), including a plurality of pixel areas A and a spacer area B between the pixel areas A; a light-emitting layer, located on one side of the driving substrate, including light-emitting units 5 located in the plurality of pixel areas A; a light-filtering layer 3, located on the side of the light-emitting layer away from the driving substrate, including light-filtering portions located in the plurality of pixel areas A, each light-filtering portion corresponding to one light-emitting unit 5; and a blocking layer, disposed on the same layer as the light-filtering layer 3, the blocking layer being located in the spacer area B, the orthographic projection of the blocking layer on the driving substrate not overlapping the orthographic projection of the light-filtering portions on the driving substrate.

[0039] In an exemplary embodiment, the display panel is a Micro OLED display panel.

[0040] In an exemplary embodiment, the driving substrate uses single-crystal silicon as the substrate and utilizes complementary metal-oxide-semiconductor (CMOS) technology to form the pixel circuits, row and column driving circuits, and other functional circuits required for the micro-OLED display panel.

[0041] In an exemplary embodiment, the light-emitting unit 5 emits white light.

[0042] In an exemplary embodiment, the filter layer 3 may include a red filter layer, a green filter layer, and a blue filter layer.

[0043] In an exemplary embodiment, the barrier layer can be formed of a single layer of material or multiple layers of material.

[0044] In an exemplary embodiment, the driving substrate defines pixel region A and interval region B. Pixel region A and interval region B do not necessarily have a clear boundary. In this embodiment, pixel region A and interval region B can be defined by... Figure 2 and Figure 6 The dashed lines in the diagram are used to delineate the boundaries.

[0045] In this embodiment, by increasing the interval region B and setting a blocking layer in the same layer as the filter layer 3 in the interval region B, the distance between adjacent sides of the filter part 3 is increased, effectively preventing the light emitted by the light-emitting unit 5 from the filter layer 3 adjacent to it at a large viewing angle. For example, the light emitted by the light-emitting unit 5 corresponding to the red filter layer is emitted through the green filter layer. At the same time, it effectively prevents the light emitted by the light-emitting unit 5 from the corresponding filter part from being deflected by the filter part to the adjacent pixel area, reducing stray light and improving the color purity of the display panel at the normal viewing angle. It also effectively reduces color shift at a large viewing angle. Even if the light emitted by the light-emitting unit 5 at a large viewing angle passes through the interval region B, the blocking layer effectively blocks the light, effectively preventing it from being emitted through the corresponding area of ​​the adjacent pixel area.

[0046] In some embodiments, reference Figure 2 As shown, the filter layer 3 includes a first filter layer 31, a second filter layer 32, and a third filter layer 33. The first filter layer 31, the second filter layer 32, and the third filter layer 33 are disposed sequentially away from the light-emitting layer, and each of the first filter layer 31, the second filter layer 32, and the third filter layer 33 extends from its corresponding pixel area A to the adjacent interval area B. Any two adjacent layers of the first filter layer 31, the second filter layer 32, and the third filter layer 33 form a blocking layer in the portion of the interval area B that is projected onto the driving substrate.

[0047] In an exemplary embodiment, the first filter layer 31 can be a red filter layer, a green filter layer, or a blue filter layer; correspondingly, the second filter layer 32 can also be a red filter layer, a green filter layer, or a blue filter layer, and the third filter layer 33 can also be a red filter layer, a green filter layer, or a blue filter layer. It should be noted that if the first filter layer 31 is a red filter layer, then the second filter layer 32 and the third filter layer 33 are not red filter layers. For example, the second filter layer 32 can be a green filter layer, and the third filter layer 33 can be a blue filter layer. If the first filter layer 31 is a green filter layer, then the second filter layer 32 and the third filter layer 33 are not green filter layers.

[0048] It should be noted that, regardless of the color of the first filter layer 31, the second filter layer 32, and the third filter layer 33, they are all arranged sequentially away from the light-emitting layer.

[0049] In this embodiment, the first filter layer 31 is a red filter layer, the second filter layer 32 is a green filter layer, and the third filter layer 33 is a blue filter layer.

[0050] In an exemplary embodiment, the light-emitting unit 5 may include a first light-emitting unit 51, a second light-emitting unit 52 and a third light-emitting unit 53, wherein the first light-emitting unit 51 corresponds to the first filter layer 31, the second light-emitting unit 52 corresponds to the second filter layer 32, and the third light-emitting unit 53 corresponds to the third filter layer 33.

[0051] It should be noted that the first light-emitting unit 51, the second light-emitting unit 52, and the third light-emitting unit 53 all emit white light, and are distinguished accordingly here for ease of description.

[0052] In an exemplary embodiment, in the interval region, the first filter layer 31 and the second filter layer 32 overlap to form a blocking layer, the second filter layer 32 and the third filter layer 33 overlap to form a blocking layer, and the third filter layer 33 and the first filter layer 31 overlap to form a blocking layer (not shown in the figure).

[0053] It is understood that the first filter layer 31 extends from the pixel area A corresponding to the first light-emitting unit 51 to the adjacent interval area B, the second filter layer 32 extends from the pixel area A corresponding to the second light-emitting unit 52 to the adjacent interval area B, and the third filter layer 33 extends from the pixel area A corresponding to the third light-emitting unit 53 to the adjacent interval area B.

[0054] In this embodiment, reference Figure 2As shown, the light emitted by the first light-emitting unit 51 forms light of corresponding colors through the first light-filtering layer 31 and exits. When the light with a large viewing angle from the first light-emitting unit 51 passes through the part of the first light-filtering layer 31 in the spacer region B, for example, when the light emitted by the first light-emitting unit 51 towards the left large viewing angle forms stray light after passing through the first light-filtering layer 31 and then hits the third light-filtering layer 33, it is absorbed by the third light-filtering layer 33, effectively preventing this part of the light with a large viewing angle from forming stray light and exiting through the region where the third light-emitting unit 53 is located. When the light emitted by the first light-emitting unit 51 towards the right large viewing angle forms stray light after passing through the first light-filtering layer 31 in the spacer region and hits the second light-filtering layer 32, it is absorbed. Similarly, this part of the light with a large viewing angle is effectively prevented from forming stray light and exiting through the region where the second light-emitting unit 52 is located. Similarly, the stray light with a large viewing angle emitted by the second light-emitting unit 52 and the third light-emitting unit 53 is also absorbed by the first light-filtering layer 31 and the third light-filtering layer 33. Obviously, in the spacer region, any two adjacent layers among the first light-filtering layer 31, the second light-filtering layer 32, and the third light-filtering layer 33 overlap and cooperate in the spacer region to form a blocking layer to absorb the stray light at a large viewing angle. At the same time, the light at the front viewing angle of the light-emitting unit 5 passes through the light-filtering parts of the first light-filtering layer 31, the second light-filtering layer 32, and the third light-filtering layer 33 respectively, forming light of corresponding colors and exiting, improving the color purity at the front viewing angle of the display panel and effectively reducing the color deviation at a large viewing angle. Even if the light emitted by the light-emitting unit 5 at a large viewing angle passes through the spacer region, the blocking layer effectively blocks this light, effectively preventing it from exiting through the corresponding region of the adjacent pixel region.

[0055] At the same time, in this embodiment, by designing the first light-filtering layer 31, the second light-filtering layer 32, and the third light-filtering layer 33 to be successively away from the light-emitting layer, it is beneficial to make two of the first light-filtering layer 31, the second light-filtering layer 32, and the third light-filtering layer 33 overlap in the spacer region to form a blocking layer.

[0056] In some alternative embodiments, the first light-filtering layer 31, the second light-filtering layer 32, and the third light-filtering layer 33 can be arranged in a shape similar to a "pin" character as shown in Figure 2 , or can be arranged in a shape similar to an "inverted pin" character as shown in Figure 3 , or can be arranged in a "stepped" shape as shown in Figure 4 , or can be arranged in an "inverted stepped" shape as shown in Figure 5 . All of them can achieve the absorption of stray light at a large viewing angle, effectively improving the color purity at the front viewing angle of the display panel and effectively reducing the color deviation at a large viewing angle.

[0057] In some embodiments, referring to Figure 6As shown, the filter layer 3 includes a first filter layer 31, a second filter layer 32, and a third filter layer 33. The first filter layer 31, the second filter layer 32, and the third filter layer 33 are disposed sequentially away from the light-emitting layer, and the first filter layer 31, the second filter layer 32, and the third filter layer 33 all extend from their respective corresponding pixel areas A to the spacer area B on the same layer. The first filter layer 31, the second filter layer 32, and the third filter layer 33 form a blocking layer in the portion of the spacer area B that is projected onto the driving substrate.

[0058] In an exemplary embodiment, the first filter layer 31 can be a red filter layer, a green filter layer, or a blue filter layer; correspondingly, the second filter layer 32 can also be a red filter layer, a green filter layer, or a blue filter layer, and the third filter layer 33 can also be a red filter layer, a green filter layer, or a blue filter layer. It should be noted that if the first filter layer 31 is a red filter layer, then the second filter layer 32 and the third filter layer 33 are not red filter layers. For example, the second filter layer 32 can be a green filter layer, and the third filter layer 33 can be a blue filter layer. If the first filter layer 31 is a green filter layer, then the second filter layer 32 and the third filter layer 33 are not green filter layers.

[0059] It should be noted that, regardless of the color of the first filter layer 31, the second filter layer 32, and the third filter layer 33, they are all arranged sequentially away from the light-emitting layer.

[0060] In this embodiment, the first filter layer 31 is a red filter layer, the second filter layer 32 is a green filter layer, and the third filter layer 33 is a blue filter layer.

[0061] In an exemplary embodiment, the light-emitting unit 5 may include a first light-emitting unit 51, a second light-emitting unit 52 and a third light-emitting unit 53, wherein the first light-emitting unit 51 corresponds to the first filter layer 31, the second light-emitting unit 52 corresponds to the second filter layer 32, and the third light-emitting unit 53 corresponds to the third filter layer 33.

[0062] It should be noted that the first light-emitting unit 51, the second light-emitting unit 52, and the third light-emitting unit 53 all emit white light, and are distinguished accordingly here for ease of description.

[0063] In an exemplary embodiment, in the interval region B, the first filter layer 31, the second filter layer 32, and the third filter layer 33 overlap to form a blocking layer.

[0064] It can be understood that the first light filtering layer 31 extends from the pixel region A corresponding to the first light emitting unit 51 to the spacer region B, that is, the first light filtering layer 31 provided in the same layer as the pixel region A is provided in all spacer regions B; similarly, the second light filtering layer 32 extends from the pixel region A corresponding to the second light emitting unit 52 to the spacer region B, that is, the second light filtering layer 32 provided in the same layer as the pixel region A is provided in all spacer regions B; the third light filtering layer 33 extends from the pixel region A corresponding to the third light emitting unit 53 to the spacer region B, that is, the third light filtering layer 33 provided in the same layer as the pixel region A is provided in all spacer regions B.

[0065] In this embodiment, referring to Figure 6 As shown, the light emitted by the first light emitting unit 51 forms light of corresponding colors through the first light filtering layer 31 and exits. When the light with a large viewing angle of the first light emitting unit 51 passes through the part of the first light filtering layer 31 located in the spacer region, for example, the light emitted by the first light emitting unit 51 towards the large viewing angle on the left side passes through the first light filtering layer 31 located in the spacer region and forms stray light that is absorbed when it hits the second light filtering layer 32 and the third light filtering layer 33, effectively preventing this part of the light with a large viewing angle from forming stray light and exiting through the region corresponding to the third light emitting unit 53. The stray light formed by the light emitted by the first light emitting unit 51 towards the large viewing angle on the right side passing through the first light filtering layer 31 located in the spacer region is absorbed when it hits the second light filtering layer 32 and the third light filtering layer 33, also effectively preventing this part of the light with a large viewing angle from forming stray light and exiting through the region corresponding to the second light emitting unit 52. The light with a large viewing angle emitted by the second light emitting unit 52 first forms stray light after passing through the first light filtering layer 31 located in the spacer region and is also absorbed when it hits the second light filtering layer 32 and the third light filtering layer 33. Similarly, the light with a large viewing angle emitted by the third light emitting unit 53 is also absorbed by the second light filtering layer 32 and the third light filtering layer 33. Obviously, in the spacer region B, the first light filtering layer 31, the second light filtering layer 32, and the third light filtering layer 33 overlap and cooperate to form a blocking layer to absorb the stray light at a large viewing angle. At the same time, the light in the front viewing angle of the light emitting unit 5 passes through the light filtering parts of the first light filtering layer 31, the second light filtering layer 32, and the third light filtering layer 33 respectively, forming light of corresponding colors and exiting, improving the color purity of the front viewing angle of the display panel and effectively reducing the color deviation at a large viewing angle. Even if the light emitted by the light emitting unit 5 at a large viewing angle passes through the spacer region, the blocking layer effectively blocks this light, effectively preventing it from exiting through the corresponding region of the adjacent pixel region.

[0066] In some optional embodiments, the first light filtering part, the second light filtering part, and the third light filtering part may also be arranged in a similar "pin" shape as Figure 2 shown, or may be arranged in a similar "inverted pin" shape as Figure 3 shown, or may be arranged in a "step" shape as Figure 4 shown, or may be arranged as Figure 5The "inverted stepped" arrangement shown can absorb stray light at wide viewing angles, effectively improving the color purity of the display panel at the normal viewing angle, while also effectively reducing color shift at wide viewing angles. No specific limitations are made here.

[0067] In some embodiments, reference Figure 7 As shown, the filter layer 3 includes a first filter layer 31, a second filter layer 32, and a third filter layer 33 disposed in the same layer. The blocking layer includes a light-shielding layer 41 disposed in the same layer as the first filter layer 31, the second filter layer 32, and the third filter layer 33. The light-shielding layer 41 is located in the interval region B and is located between the first filter layer 31, the second filter layer 32, and the third filter layer 33.

[0068] In an exemplary embodiment, similar to the above embodiments, the first filter layer 31 can be a red filter layer, a green filter layer, or a blue filter layer; correspondingly, the second filter layer 32 can also be a red filter layer, a green filter layer, or a blue filter layer, and the third filter layer 33 can also be a red filter layer, a green filter layer, or a blue filter layer. It should be noted that if the first filter layer 31 is a red filter layer, then the second filter layer 32 and the third filter layer 33 are not red filter layers. For example, the second filter layer 32 can be a green filter layer, and the third filter layer 33 can be a blue filter layer. If the first filter layer 31 is a green filter layer, then the second filter layer 32 and the third filter layer 33 are not green filter layers.

[0069] In an exemplary embodiment, the light-emitting unit 5 may include a first light-emitting unit 51, a second light-emitting unit 52 and a third light-emitting unit 53, wherein the first light-emitting unit 51 corresponds to the first filter layer 31, the second light-emitting unit 52 corresponds to the second filter layer 32, and the third light-emitting unit 53 corresponds to the third filter layer 33.

[0070] It should be noted that the first light-emitting unit 51, the second light-emitting unit 52, and the third light-emitting unit 53 all emit white light, and are distinguished accordingly here for ease of description.

[0071] In an exemplary embodiment, the light-shielding layer 41 may be a resin or ink containing carbon black.

[0072] In this embodiment, the light emitted by the first light-emitting unit 51, the second light-emitting unit 52, and the third light-emitting unit 53 passes through the first filter layer 31, the second filter layer 32, and the third filter layer 33 respectively to form light of corresponding colors. When the light emitted by the first light-emitting unit 51 at a large angle passes through the light-shielding layer 41 located in the interval region, it is blocked by the light-shielding layer 41. For example, the light emitted by the first light-emitting unit 51 at a large angle to the left is blocked by the light-shielding layer 41 between the first filter layer 31 and the third filter layer 32, effectively preventing this large-angle light from forming stray light and exiting through the area where the third light-emitting unit 53 is located. Similarly, the light emitted by the first light-emitting unit 51 at a large angle to the right is blocked by the light-shielding layer 41 between the first filter layer 31 and the second filter layer 32. This effectively prevents stray light from being emitted through the area where the second light-emitting unit 52 is located. Similarly, stray light emitted from the second light-emitting unit 52 and the third light-emitting unit 53 at a wide viewing angle will also be blocked by the light-shielding layer 41. Obviously, in the interval area B, the light-shielding layer 41 acts as a blocking layer to block stray light at a wide viewing angle. At the same time, light at the positive viewing angle of the light-emitting unit 5 passes through the first filter layer 31, the second filter layer 32 and the third filter layer 33 respectively, forming light of the corresponding color to be emitted, which improves the color purity of the display panel at the positive viewing angle and effectively reduces color shift at a wide viewing angle. Even if light emitted from the light-emitting unit at a wide viewing angle passes through the interval area, the blocking layer effectively blocks the light, effectively preventing it from being emitted through the corresponding area of ​​the adjacent pixel area.

[0073] In some embodiments, the filter portion includes a first filter layer 31, a second filter layer 32, and a third filter layer 33 located in the portion of pixel region A projected onto the driving substrate.

[0074] In an exemplary embodiment, the filter section may consist only of the portion of the first filter layer 31, the second filter layer 32, and the third filter layer 33 located in the pixel region A projected onto the driving substrate, or it may be slightly larger than the portion of the first filter layer 31, the second filter layer 32, and the third filter layer 33 located in the pixel region A projected onto the driving substrate, that is, it may extend slightly from the pixel region A to the adjacent spacing region B.

[0075] In this embodiment, the filter section located in the orthographic projection portion of pixel area A shapes the white light emitted by the light-emitting unit 5 into light rays of corresponding colors for emission, thereby improving the color purity of the display panel at the orthographic viewing angle. Simultaneously, it effectively prevents the light emitted by the light-emitting unit 5 from forming light of corresponding colors at a wide viewing angle from emitting into the corresponding areas of adjacent light-emitting units 5. Furthermore, the presence of a blocking layer between the filter sections effectively prevents stray light from the light emitted by the light-emitting unit 5 at a wide viewing angle, reducing color shift at large viewing angles.

[0076] In some embodiments, the first filter layer 31, the second filter layer 32, or the third filter layer 33 is any one of a red filter layer, a green filter layer, and a blue filter layer, and the first filter layer 31, the second filter layer 32, and the third filter layer 33 are different from each other.

[0077] In an exemplary embodiment, the first filter layer 31 can be a red filter layer, a green filter layer, or a blue filter layer; correspondingly, the second filter layer 32 can also be a red filter layer, a green filter layer, or a blue filter layer, and the third filter layer 33 can also be a red filter layer, a green filter layer, or a blue filter layer. It should be noted that if the first filter layer 31 is a red filter layer, then the second filter layer 32 and the third filter layer 33 are not red filter layers. For example, the second filter layer 32 can be a green filter layer, and the third filter layer 33 can be a blue filter layer. If the first filter layer 31 is a green filter layer, then the second filter layer 32 and the third filter layer 33 are not green filter layers.

[0078] In this embodiment, the first filter layer 31, the second filter layer 32, and the third filter layer 33 are located in the filter section of pixel area A. After the light-emitting unit 5 emits light, the filter section can effectively form light of the corresponding color so that the display panel can display effectively. At the same time, even if the positions of the first filter layer 31, the second filter layer 32, and the third filter layer 33 change, it will not affect the effective display of the display panel.

[0079] For example, the first filter layer 31 is a red filter layer, the second filter layer 32 is a green filter layer, and the third filter layer 33 is a blue filter layer. Red light is formed in the pixel area A corresponding to the first filter layer 31, green light is formed in the pixel area A corresponding to the second filter layer 32, and blue light is formed in the pixel area A corresponding to the third filter layer 33.

[0080] In some embodiments, the projection of the light-shielding layer 41 onto the driving substrate does not overlap with the projection of the light-emitting unit 5 onto the driving substrate.

[0081] In an exemplary embodiment, the orthogonal projection of the light-shielding layer 41 onto the driving substrate can contact the orthogonal projection of the light-emitting unit 5 onto the driving substrate, and the orthogonal projection of the light-shielding layer 41 onto the driving substrate can also have a gap with the orthogonal projection of the light-emitting unit 5 onto the driving substrate.

[0082] In this embodiment, by ensuring that the projection of the light-shielding layer 41 onto the driving substrate does not overlap with the projection of the light-emitting unit 5 onto the driving substrate, the light-shielding layer effectively blocks the light emitted by the light-emitting unit 5 from a wide viewing angle, while ensuring that the light emitted from the light-emitting unit 5 at a normal viewing angle is effectively emitted. At the same time, at a slightly larger viewing angle than the normal viewing angle, the light emitted into the area corresponding to the adjacent light-emitting unit 5 is reduced, which helps to improve the display brightness of the display panel and further improve the display effect of the display panel.

[0083] In some embodiments, the orthogonal projection of the light-emitting unit 5 onto the driving substrate is located within the orthogonal projection range of the filter portion onto the driving substrate.

[0084] In an exemplary embodiment, the orthogonal projection of the light-emitting unit 5 onto the driving substrate may overlap with the orthogonal projection of the filter portion onto the driving substrate, and the orthogonal projection of the light-emitting unit 5 onto the driving substrate may be smaller than the orthogonal projection of the filter portion onto the driving substrate.

[0085] In this embodiment, since the orthogonal projection of the light-emitting unit 5 on the driving substrate is located within the orthogonal projection range of the filter on the driving substrate, when the orthogonal projection of the light-emitting unit 5 on the driving substrate overlaps with the orthogonal projection of the filter on the driving substrate, stray light is prevented from being emitted by the light-emitting unit 5 to the corresponding area of ​​the adjacent light-emitting unit 5, thereby improving the color purity of the display panel at the orthogonal viewing angle and reducing color shift at a large viewing angle. When the orthogonal projection of the light-emitting unit 5 on the driving substrate is smaller than the orthogonal projection of the filter on the driving substrate, that is, when the filter extends a portion from the pixel area A to the adjacent interval area B, the blocking layer effectively blocks stray light from being emitted to the corresponding area of ​​the adjacent light-emitting unit 5, while the light at a slightly larger viewing angle than the orthogonal viewing angle can effectively improve the brightness of the display panel, further improving the display effect of the display panel.

[0086] In some embodiments, reference Figures 2 to 6 As shown, an encapsulation layer 6 is provided between the light-emitting layer and the filter layer 3; microlenses 7 are arrayed on the side of the filter layer 3 away from the driving substrate, and the microlenses 7 correspond to the light-emitting units 5. The orthogonal projection of any light-emitting unit 5 and the corresponding filter part on the driving substrate is located within the orthogonal projection range of the corresponding microlens 7 on the driving substrate.

[0087] In an exemplary embodiment, the encapsulation layer 6 employs thin film encapsulation (TFE) to effectively protect the light-emitting unit 5 and the pixel circuits, row and column driving circuits, and other functional circuits integrated on the driving substrate, thereby isolating them from water and oxygen.

[0088] In an exemplary embodiment, a planarization layer 8 is provided between the filter layer 3 and the microlens 7.

[0089] In an exemplary embodiment, when the first filter layer 31, the second filter layer 32, and the third filter layer 33 are sequentially disposed away from the light-emitting layer, the first filter layer 31 is disposed corresponding to the first light-emitting unit 51 and extends from the pixel area A corresponding to the first light-emitting unit 51 to the adjacent interval area B. In the areas corresponding to the second light-emitting unit 52 and the third light-emitting unit 53, a planarization layer is provided on the same layer as the first filter layer 31. Similarly, the second filter layer 32 is disposed corresponding to the second light-emitting unit 52 and a planarization layer is provided on the same layer as the second filter layer 32 in the areas corresponding to the first light-emitting unit 51 and the third light-emitting unit 53. The third filter layer 33 is disposed corresponding to the third light-emitting unit 53 and a planarization layer is provided on the same layer as the third filter layer 33 in the areas corresponding to the first light-emitting unit 51 and the second light-emitting unit 52.

[0090] In an exemplary embodiment, a cover plate 10 is provided on the side of the microlens 7 away from the driving substrate via adhesive 9.

[0091] In an exemplary embodiment, the cover plate 10 is made of a transparent material.

[0092] In an exemplary embodiment, the orthographic projection of any light-emitting unit 5 and its corresponding filter onto the driving substrate can coincide with the orthographic projection of the corresponding microlens 7 onto the driving substrate. The orthographic projection of any light-emitting unit 5 and its corresponding filter onto the driving substrate can be smaller than the orthographic projection of the corresponding microlens 7 onto the driving substrate, that is, the microlens 7 can extend from the pixel area A to the adjacent spacing area B.

[0093] In this embodiment, the light from the light-emitting unit 5 is effectively blocked by the blocking layer from a wide viewing angle, reducing stray light and improving the color purity of the display panel from the front viewing angle. Since the front projection of the light-emitting unit 5 and the corresponding filter on the driving substrate is located within the front projection range of the corresponding microlens 7 on the driving substrate, the light emitted from the filter from the front viewing angle is converged by the microlens 7, further improving the color purity of the display panel from the front viewing angle, while effectively reducing color shift at a wide viewing angle.

[0094] Based on the same inventive concept, this application provides a display device including the display panel described in any of the above embodiments. In some examples, the display device may be any product or component with display function, such as an augmented reality (AR) display, a virtual reality (VR) display, a mixed reality (MR) display, a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital camera, or a navigator. This embodiment does not specifically limit this.

[0095] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. A display panel, characterized in that, include: The driving substrate includes multiple pixel areas and spacing areas between the pixel areas; A light-emitting layer, located on one side of the driving substrate, includes light-emitting units located in a plurality of pixel regions; A filter layer is located on the side of the light-emitting layer away from the driving substrate, and includes filter portions located in a plurality of pixel regions, each filter portion corresponding to a light-emitting unit; A blocking layer is disposed in the same layer as the filter layer. The blocking layer is located in the interval area. The orthographic projection of the blocking layer on the driving substrate does not overlap with the orthographic projection of the filter portion on the driving substrate.

2. The display panel according to claim 1, characterized in that, The filter layer includes a first filter layer, a second filter layer, and a third filter layer. The first filter layer, the second filter layer, and the third filter layer are disposed sequentially away from the light-emitting layer. The first filter layer, the second filter layer, and the third filter layer all extend from their respective corresponding pixel areas to adjacent interval areas. Any two adjacent layers of the first filter layer, the second filter layer, and the third filter layer form the blocking layer in the portion of the interval area projected onto the driving substrate.

3. The display panel according to claim 1, characterized in that, The filter layer includes a first filter layer, a second filter layer, and a third filter layer. The first filter layer, the second filter layer, and the third filter layer are disposed sequentially away from the light-emitting layer. The first filter layer, the second filter layer, and the third filter layer all extend from their respective corresponding pixel areas to the spacing area. The first filter layer, the second filter layer, and the third filter layer form the blocking layer in the portion of the spacing area projected onto the driving substrate.

4. The display panel according to claim 1, characterized in that, The filter layer includes a first filter layer, a second filter layer, and a third filter layer disposed in the same layer. The blocking layer includes a light-shielding layer disposed in the same layer as the first filter layer, the second filter layer, and the third filter layer. The light-shielding layer is located in the interval area and is located between any two adjacent layers of the first filter layer, the second filter layer, and the third filter layer.

5. The display panel according to any one of claims 2 to 4, characterized in that, The filtering section includes a first filter layer, a second filter layer, and a third filter layer located on the portion of the pixel area projected onto the driving substrate.

6. The display panel according to any one of claims 2 to 4, characterized in that, The first filter layer, the second filter layer, or the third filter layer is any one of a red filter layer, a green filter layer, and a blue filter layer, and the first filter layer, the second filter layer, and the third filter layer are all different from each other.

7. The display panel according to claim 4, characterized in that, The projection of the light-shielding layer onto the driving substrate does not overlap with the projection of the light-emitting unit onto the driving substrate.

8. The display panel according to claim 1, characterized in that, The orthographic projection of the light-emitting unit onto the driving substrate is located within the orthographic projection range of the filter portion onto the driving substrate.

9. The display panel according to claim 1, characterized in that, An encapsulation layer is provided between the light-emitting layer and the filter layer; The filter layer has microlenses arranged on the side away from the driving substrate. Each microlens corresponds to a light-emitting unit. The orthogonal projection of any light-emitting unit and the corresponding filter onto the driving substrate is located within the orthogonal projection range of the corresponding microlens onto the driving substrate.

10. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 9.

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