Display panel and display device

Abstract

This application provides a display panel and a display device. The display panel includes: a substrate; multiple light-emitting units; a light-filtering structure including a first light-filtering layer and a second light-filtering layer, each including a filtering portion and a connecting portion; the connecting portions in the first and second light-emitting layers are stacked along a direction perpendicular to the plane of the substrate to form a light-blocking structure; based on an adjacent first light-emitting unit and a second light-emitting unit, the second light-filtering layer includes a first sub-opening and a first side surface corresponding to the first sub-opening, and the first light-filtering layer includes a second sub-opening and a second side surface corresponding to the second sub-opening; the first side surface includes a curved first edge line, and the second side surface includes a curved second edge line, the curvature of the first edge line being a first curvature, and the curvature of the second edge line being a second curvature, wherein the first curvature and the second curvature are different. This improves the performance of the display panel.

Description

Technical Field

[0001] This application relates to the field of display device technology, and more particularly to a display panel and display device. Background Technology

[0002] Organic light-emitting diodes (OLEDs) and flat panel displays based on light-emitting diodes (LEDs) are widely used in various consumer electronics products such as mobile phones, televisions, laptops, and desktop computers due to their advantages such as high image quality, energy saving, thin body and wide range of applications, becoming the mainstream of display devices.

[0003] However, the performance of current OLED display products needs to be improved. Summary of the Invention

[0004] This application provides a display panel and a display device, which aim to improve the performance of the display panel.

[0005] An embodiment of the first aspect of this application provides a display panel, comprising: a substrate; a plurality of light-emitting units disposed on one side of the substrate, the plurality of light-emitting units including a plurality of first light-emitting units and a plurality of second light-emitting units, the first light-emitting units and the second light-emitting units emitting different colors; a filter structure disposed on the side of the light-emitting units away from the substrate, the filter structure including a first filter layer and a second filter layer stacked thereon, the first filter layer and the second filter layer each including a plurality of filter portions and a connecting portion connecting the plurality of filter portions, at least one filter portion in the first filter layer having its orthographic projection on the substrate overlapping with the orthographic projection of the first light-emitting unit on the substrate, and at least one filter portion in the second filter layer having its orthographic projection on the substrate overlapping with the orthographic projection of the second light-emitting unit on the substrate; the connecting portions in the first filter layer and the connecting portions in the second filter layer being stacked along a direction perpendicular to the plane of the substrate to form a light-blocking structure, the light-blocking structure being... The orthographic projection on the substrate and the orthographic projection of the light-emitting unit on the substrate are spaced apart. Based on an adjacent first light-emitting unit and a second light-emitting unit, the second filter layer includes a first sub-opening and a first side surface corresponding to the first sub-opening. The orthographic projection of the first sub-opening on the substrate covers the orthographic projection of the first light-emitting unit on the substrate. The first filter layer includes a second sub-opening and a second side surface corresponding to the second sub-opening. The orthographic projection of the second sub-opening on the substrate covers the orthographic projection of the second light-emitting unit on the substrate. In a direction perpendicular to the plane of the substrate, in a cross-section passing through the first light-emitting unit, the first side surface includes a curved first edge line. In a direction perpendicular to the plane of the substrate, in a cross-section passing through the second light-emitting unit, the second side surface includes a curved second edge line. The curvature of the first edge line is a first curvature, and the curvature of the second edge line is a second curvature. The first curvature and the second curvature are different.

[0006] According to any of the foregoing embodiments of the first aspect of this application, in the light-blocking structure located between two adjacent light-emitting units along a direction perpendicular to the plane of the substrate, the thickness of the connecting portion of the first filter layer is greater than the thickness of the connecting portion of the second filter layer.

[0007] According to any of the foregoing embodiments of the first aspect of this application, the display panel further includes a plurality of third light-emitting units, and the filter structure further includes a third filter layer stacked with the first filter layer and the second filter layer. The third filter layer includes a plurality of filter portions and a connecting portion connecting the plurality of filter portions. The orthographic projection of at least one filter portion in the third filter layer on the substrate overlaps with the orthographic projection of the third light-emitting unit on the substrate. Along a direction perpendicular to the plane of the substrate, the connecting portions of the first filter layer, the second filter layer, and the third filter layer are stacked to form the light-blocking structure. Based on the same first light-emitting unit, the third filter layer includes a third sub-opening, and the orthographic projection of the third sub-opening on the substrate covers the orthographic projection of the first light-emitting unit on the substrate. Along a direction perpendicular to the plane of the substrate, based on the first light-emitting unit, the connecting portion in the third filter layer includes a fourth side surface corresponding to the third sub-opening. In a cross-section passing through the first light-emitting unit in a direction perpendicular to the plane of the substrate, the fourth side surface includes a curved third edge line, the curvature of which is a third curvature, and the first curvature and the third curvature are different.

[0008] According to any of the foregoing embodiments of the first aspect of this application, in the light-blocking structure located between two adjacent light-emitting units along a direction perpendicular to the plane of the substrate, the thickness of the connecting portion of the first filter layer is greater than the thickness of the connecting portion in the third filter layer.

[0009] According to any of the foregoing embodiments of the first aspect of this application, the third filter layer is located on the side of the second filter layer away from the substrate; the orthographic projection of the connecting portion of the second filter layer on the substrate includes a first edge corresponding to the formation of the first sub-opening, and the orthographic projection of the connecting portion of the third filter layer on the substrate includes a second edge corresponding to the formation of the third sub-opening, and the first edge is disposed close to the orthographic projection of the first light-emitting unit on the substrate relative to the second edge.

[0010] According to any of the foregoing embodiments of the first aspect of this application, based on the same second light-emitting unit, the first filter layer includes a second sub-opening, and the third filter layer includes a fourth sub-opening. The orthographic projection of the second sub-opening on the substrate covers the orthographic projection of the second light-emitting unit on the substrate, and the orthographic projection of the fourth sub-opening on the substrate covers the orthographic projection of the second light-emitting unit on the substrate. The orthographic projection of the connecting portion of the first filter layer on the substrate includes a third edge corresponding to the formation of the second sub-opening, and the orthographic projection of the connecting portion of the third filter layer on the substrate includes a fourth edge corresponding to the formation of the fourth sub-opening. The third edge is closer to the second light-emitting unit on the substrate than the fourth edge. The orthographic projection of the third light-emitting unit is configured such that: and / or, based on the same third light-emitting unit, the first filter layer includes a fifth sub-opening, the second filter layer includes a sixth sub-opening, the orthographic projection of the fifth sub-opening on the substrate covers the orthographic projection of the third light-emitting unit on the substrate, the orthographic projection of the connecting portion of the first filter layer on the substrate includes a fifth edge corresponding to the formation of the fifth sub-opening, the orthographic projection of the connecting portion of the second filter layer on the substrate includes a sixth edge corresponding to the formation of the sixth sub-opening, and the fifth edge is disposed close to the orthographic projection of the third light-emitting unit on the substrate relative to the sixth edge.

[0011] According to any of the foregoing embodiments of the first aspect of this application, along a direction perpendicular to the plane of the substrate, based on a second light-emitting unit, the connecting portion in the first filter layer includes a second side surface corresponding to the formation of the second sub-opening; based on a third light-emitting unit, the connecting portion in the first filter layer includes a third side surface corresponding to the formation of the fifth sub-opening; in a cross-section passing through adjacent second and third light-emitting units in a direction perpendicular to the plane of the substrate, the second side surface includes a curved second edge line, and the third side surface includes a curved fourth edge line, the curvature of the second edge line being a second curvature, and the curvature of the fourth edge line being a fourth curvature, wherein the second curvature and the fourth curvature are different.

[0012] According to any of the foregoing embodiments of the first aspect of this application, along a direction perpendicular to the plane of the substrate, based on the second light-emitting unit, the connecting portion in the third filter layer includes a fifth side surface corresponding to the fourth sub-opening. In a cross-section passing through the second light-emitting unit, the fifth side surface includes a curved fifth edge line, the curvature of the fifth edge line being a fifth curvature, and the maximum value of the fifth curvature being less than the maximum value of the first curvature. Along a direction perpendicular to the plane of the substrate, based on the third light-emitting unit, the connecting portion in the second filter layer includes a sixth side surface corresponding to the sixth sub-opening. In a cross-section passing through the third light-emitting unit, the sixth side surface includes a curved sixth edge line, the curvature of the sixth edge line being a sixth curvature, and the maximum value of the third curvature being greater than the maximum value of the sixth curvature.

[0013] According to any of the foregoing embodiments of the first aspect of this application, along a direction parallel to the plane where the substrate is located, based on the same first light-emitting unit, the distance between the boundary of the orthographic projection of the first side surface on the substrate and the boundary of the orthographic projection of the fourth side surface on the substrate is a first distance; based on the same third light-emitting unit, the distance between the boundary of the orthographic projection of the third side surface on the substrate and the boundary of the orthographic projection of the sixth side surface on the substrate is a second distance; based on the same second light-emitting unit, the distance between the boundary of the orthographic projection of the second side surface on the substrate and the boundary of the orthographic projection of the fifth side surface on the substrate is a third distance; any two of the first distance, the second distance, and the third distance are not equal.

[0014] According to any of the foregoing embodiments of the first aspect of this application, the display panel includes a non-display area and a display area, the non-display area being at least partially disposed around the display area, and the display panel further includes a touch layer disposed between the light-emitting unit and the light-filtering structure; in the display area, the touch layer includes touch traces, and the orthographic projection of the light-blocking structure on the substrate covers the orthographic projection of the touch traces on the substrate; and / or, in the non-display area, the touch layer includes touch signal lines, and the orthographic projection of the light-blocking structure on the substrate covers the orthographic projection of the touch signal lines on the substrate.

[0015] According to any of the foregoing embodiments of the first aspect of this application, the light-blocking structure includes a plurality of first light-transmitting holes; the orthographic projection of the light-emitting unit on the substrate and the orthographic projection of the first light-transmitting hole on the substrate are spaced apart.

[0016] According to any of the foregoing embodiments of the first aspect of this application, a pixel definition layer is further included. The pixel definition layer is disposed on one side of the substrate. The pixel definition layer includes a plurality of pixel openings and a plurality of second light-transmitting holes. At least a portion of one of the light-emitting units is located in one of the pixel openings. Along a direction perpendicular to the plane of the substrate, the second light-transmitting hole and the corresponding first light-transmitting hole at least partially overlap.

[0017] According to any of the foregoing embodiments of the first aspect of this application, along a direction away from the substrate, the pixel definition layer includes a first sub-pixel definition layer and a second sub-pixel definition layer stacked together, the first sub-pixel definition layer defining a plurality of pixel openings and a plurality of second light-transmitting holes, and the first sub-pixel definition layer including a light-shielding material.

[0018] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection of the second light-transmitting hole on the substrate is located within the orthographic projection of the corresponding first light-transmitting hole on the substrate, or the orthographic projection of the first light-transmitting hole on the substrate is located within the orthographic projection of the corresponding second light-transmitting hole on the substrate; and / or, the orthographic projection of the light-blocking structure on the substrate is located within the orthographic projection of the second sub-pixel definition layer on the substrate, and the orthographic projection of the second sub-pixel definition layer on the substrate is located within the orthographic projection of the first sub-pixel definition layer on the substrate.

[0019] According to any of the foregoing embodiments of the first aspect of this application, along a direction perpendicular to the plane where the substrate is located, the first sub-pixel definition layer includes a first surface and a second surface disposed opposite to each other, the first surface being located on the side of the second surface away from the substrate, and in the region between two adjacent light-emitting units, the orthographic projection of the corresponding first surface on the substrate is located within the orthographic projection range of the second surface on the substrate.

[0020] According to any of the foregoing embodiments of the first aspect of this application, the pixel opening includes a first pixel sub-opening and a second pixel sub-opening, the first sub-pixel defining layer includes the first pixel sub-opening, the second sub-pixel defining layer includes the second pixel sub-opening, the first sub-pixel defining layer includes a seventh side surface forming the first pixel sub-opening, and the second sub-pixel defining layer includes an eighth side surface forming the second pixel sub-opening; in a cross-section passing through the light-emitting unit in a direction perpendicular to the plane of the substrate, the seventh side surface includes a seventh edge line, the eighth side surface includes an eighth edge line, the substrate includes a baseline, and the baseline intersects with the extension lines of the seventh edge line and the eighth edge line respectively; the included angle between the seventh edge line and the baseline is greater than the included angle between the eighth edge line and the baseline.

[0021] According to any of the foregoing embodiments of the first aspect of this application, at least one of the pixel openings has a circular or elliptical orthographic projection on the substrate; the first sub-opening has a circular or elliptical orthographic projection on the substrate, and / or the second sub-opening has a circular or elliptical orthographic projection on the substrate, and / or the fifth sub-opening has a circular or elliptical orthographic projection on the substrate.

[0022] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection of the pixel opening on the substrate is elliptical, and the ratio of the major axis to the minor axis of the ellipse is in the range of 1 to 1.5.

[0023] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projections of the first sub-opening, the second sub-opening, the fifth sub-opening, and the pixel opening on the substrate are all elliptical; the angle between the extension of the major axis of the orthographic projection of the first sub-opening on the substrate and the extension of the major axis of the pixel opening is an acute angle, and / or, the angle between the extension of the major axis of the orthographic projection of the second sub-opening on the substrate and the extension of the major axis of the pixel opening is an acute angle, and / or, the angle between the extension of the major axis of the orthographic projection of the fifth sub-opening on the substrate and the extension of the major axis of the pixel opening is an acute angle.

[0024] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection edge of the first sub-opening on the substrate and the orthographic projection edge of the corresponding pixel opening on the substrate have a first distance, and the first distance periodically increases and decreases along the circumferential direction of the pixel opening; and / or, the orthographic projection edge of the second sub-opening on the substrate and the orthographic projection edge of the corresponding pixel opening on the substrate have a second distance, and the second distance periodically increases and decreases along the circumferential direction of the pixel opening; and / or, the orthographic projection edge of the fifth sub-opening on the substrate and the orthographic projection edge of the corresponding pixel opening on the substrate have a third distance, and the third distance periodically increases and decreases along the circumferential direction of the pixel opening.

[0025] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection center of the first sub-opening on the substrate and the orthographic projection center of the corresponding pixel opening on the substrate do not overlap; and / or, the orthographic projection center of the second sub-opening on the substrate and the orthographic projection center of the corresponding pixel opening on the substrate do not overlap; and / or, the orthographic projection center of the fifth sub-opening on the substrate and the orthographic projection center of the corresponding pixel opening on the substrate do not overlap.

[0026] According to any of the foregoing embodiments of the first aspect of this application, the distance between the orthographic projection center of the first sub-opening on the substrate and the orthographic projection center of the corresponding pixel opening on the substrate is greater than or equal to 1 micrometer, and / or the distance between the orthographic projection center of the second sub-opening on the substrate and the orthographic projection center of the corresponding pixel opening on the substrate is greater than or equal to 1 micrometer, and / or the distance between the orthographic projection center of the fifth sub-opening on the substrate and the orthographic projection center of the corresponding pixel opening on the substrate is greater than or equal to 1 micrometer.

[0027] According to any of the foregoing embodiments of the first aspect of this application, the plurality of light-emitting units are arranged along a first direction and a second direction, the first direction and the second direction intersect, and are all parallel to the direction of the substrate. Along the second direction, first-type units and second-type units are alternately arranged. The first-type unit includes first-light-emitting units and second-light-emitting units alternately arranged along the second direction, and the second-type unit includes third-light-emitting units spaced apart along the second direction. In the same first-type unit, the offset direction of the orthographic projection center of at least one first sub-opening on the substrate relative to the orthographic projection center of the corresponding pixel opening on the substrate is different from the offset direction of the orthographic projection center of at least one second sub-opening on the substrate relative to the orthographic projection center of the corresponding pixel opening on the substrate. In at least one second-type unit, the orthographic projection center of the fifth sub-opening corresponding to at least two third-light-emitting units on the substrate is different from the offset direction of the orthographic projection center of the corresponding pixel opening on the substrate.

[0028] According to any of the foregoing embodiments of the first aspect of this application, the display panel includes a bending area and a planar area; the display panel further includes a cover plate disposed on the side of the filter structure facing away from the substrate, the cover plate including a first cover plate portion located in the bending area and a second cover plate portion located in the planar area, the thickness of the first cover plate portion being less than the thickness of the second cover plate portion; in the bending area, the surface of the cover plate facing the substrate is provided with a first groove, the first groove including an inclined surface and a bottom surface connected to the inclined surface, the included angle between the inclined surface and the bottom surface being greater than or equal to 1° and less than or equal to 2°.

[0029] According to any of the foregoing embodiments of the first aspect of this application, the display panel further includes a support structure disposed on the side of the substrate away from the filter structure. The support structure includes a base layer and at least two sub-layers disposed on the side of the base layer away from the substrate. The at least two sub-layers include a first sub-layer and a second sub-layer. The second sub-layer is disposed on the side of the first sub-layer away from the base layer. In the bending area, the first sub-layer has a first opening, and the second sub-layer has a second opening. The orthographic projection of the second opening on the base layer covers the orthographic projection of the first opening on the base layer.

[0030] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection area of ​​the second opening on the substrate is greater than the orthographic projection area of ​​the first opening on the substrate.

[0031] According to any of the foregoing embodiments of the first aspect of this application, a first light-shielding layer is further provided on the side of the filter structure opposite to the substrate. The first light-shielding layer includes a first light-shielding portion. The orthogonal projection of the first light-shielding portion on the substrate is disposed around at least a portion of the orthogonal projection of the light-emitting unit on the substrate. The orthogonal projection of the light-blocking structure on the substrate covers the orthogonal projection of the first light-shielding portion on the substrate.

[0032] According to any of the foregoing embodiments of the first aspect of this application, the display panel further includes a second light-shielding layer, the second light-shielding layer being disposed on the side of the first light-shielding layer away from the substrate, the second light-shielding layer including a second light-shielding portion, the orthographic projection of the second light-shielding portion on the substrate being disposed around at least a portion of the orthographic projection of the light-emitting unit on the substrate, and the orthographic projection of the first light-shielding portion on the substrate and the orthographic projection of the second light-shielding portion on the substrate at least partially overlapping.

[0033] A second aspect of this application also provides a display panel, comprising: a substrate; a plurality of light-emitting units disposed on one side of the substrate, the plurality of light-emitting units including a plurality of first light-emitting units and a plurality of second light-emitting units, the first light-emitting units and the second light-emitting units emitting different colors; and a filter structure disposed on the side of the light-emitting units away from the substrate, the filter structure including a first filter layer and a second filter layer stacked thereon, the first filter layer and the second filter layer each including a plurality of filter portions and a connecting portion connecting the plurality of filter portions, wherein at least one filter portion of the first filter layer has its orthographic projection on the substrate and the first light-emitting unit emits different colors. The orthographic projections of the light-emitting units on the substrate overlap, and the orthographic projections of at least one filter portion in the second filter layer on the substrate and the orthographic projections of the second light-emitting unit on the substrate overlap; along a direction perpendicular to the plane of the substrate, the connecting portions in the first filter layer and the connecting portions in the second filter layer are stacked to form a light-blocking structure, and the orthographic projections of the light-blocking structure on the substrate and the orthographic projections of the light-emitting units on the substrate are spaced apart; along a direction perpendicular to the plane of the substrate, in the light-blocking structure located between two adjacent light-emitting units, the thickness of the connecting portion of the first filter layer is greater than the thickness of the connecting portion of the second filter layer.

[0034] An embodiment of the third aspect of this application also provides a display panel, comprising: a substrate; a plurality of light-emitting units disposed on one side of the substrate, the plurality of light-emitting units including a plurality of first light-emitting units, a plurality of second light-emitting units, and a plurality of third light-emitting units, wherein any two of the first light-emitting units, the second light-emitting units, and the third light-emitting units emit different colors; a filter structure disposed on the side of the light-emitting units away from the substrate, the filter structure including a first filter layer, a second filter layer, and a third filter layer, each of the first filter layer, the second filter layer, and the third filter layer including a filter portion and a connecting portion, wherein the orthographic projection of at least one filter portion in the first filter layer on the substrate overlaps with the orthographic projection of the first light-emitting unit on the substrate, the orthographic projection of at least one filter portion in the second filter layer on the substrate overlaps with the orthographic projection of the second light-emitting unit on the substrate, and the orthographic projection of at least one filter portion in the third filter layer on the substrate overlaps with the first light-emitting unit on the substrate. The orthographic projections of the third light-emitting unit on the substrate overlap; based on the same second light-emitting unit, the first filter layer includes a second sub-opening, and the third filter layer includes a fourth sub-opening. The orthographic projection of the second sub-opening on the substrate covers the orthographic projection of the second light-emitting unit on the substrate, and the orthographic projection of the fourth sub-opening on the substrate covers the orthographic projection of the second light-emitting unit on the substrate; along a direction perpendicular to the plane of the substrate, based on the second light-emitting unit, the connecting portion in the first filter layer includes a second side surface corresponding to the formation of the second sub-opening, and based on the third light-emitting unit, the connecting portion in the first filter layer includes a third side surface forming a fifth sub-opening; in the cross-section passing through adjacent second and third light-emitting units, the second side surface includes a curved second edge line, and the third side surface includes a curved fourth edge line. The curvature of the second edge line is a second curvature, and the curvature of the fourth edge line is a fourth curvature. The second curvature and the fourth curvature are different.

[0035] An embodiment of the fourth aspect of this application provides a display panel, comprising: a substrate; a plurality of light-emitting units disposed on one side of the substrate, the plurality of light-emitting units including a plurality of first light-emitting units, a plurality of second light-emitting units, and a plurality of third light-emitting units, wherein any two of the first light-emitting units, the second light-emitting units, and the third light-emitting units emit different colors; a filter structure disposed on the side of the light-emitting units away from the substrate, the filter structure including a first filter layer, a second filter layer, and a third filter layer, each of the first filter layer, the second filter layer, and the third filter layer including a filter portion and a connecting portion, wherein the orthographic projection of at least one filter portion in the first filter layer on the substrate overlaps with the orthographic projection of the first light-emitting unit on the substrate, the orthographic projection of at least one filter portion in the second filter layer on the substrate overlaps with the orthographic projection of the second light-emitting unit on the substrate, and the orthographic projection of at least one filter portion in the third filter layer on the substrate overlaps with the orthographic projection of the third light-emitting unit. The orthographic projections of the units on the substrate overlap; based on the same first light-emitting unit, the second filter layer includes a first sub-opening, and the third filter layer includes a third sub-opening. The orthographic projection of the first sub-opening on the substrate covers the orthographic projection of the first light-emitting unit on the substrate, and the orthographic projection of the third sub-opening on the substrate covers the orthographic projection of the first light-emitting unit on the substrate. Along a direction perpendicular to the plane of the substrate, based on the first light-emitting unit, the connecting portion in the second filter layer includes a first side surface corresponding to the formation of the first sub-opening, and the connecting portion in the third filter layer includes a fourth side surface corresponding to the formation of the third sub-opening. In a cross-section passing through the first light-emitting unit in a direction perpendicular to the plane of the substrate, the first side surface includes a curved first edge line, and the fourth side surface includes a curved third edge line. The curvature of the first edge line is a first curvature, and the curvature of the third edge line is a third curvature. The first curvature and the third curvature are different.

[0036] An embodiment of the fifth aspect of this application also provides a display device, including the display panel of any of the above-described embodiments.

[0037] The display panel provided in this application embodiment includes a substrate, light-emitting units, and a light-filtering structure. The light-filtering portions are respectively configured for light-emitting units of different emitting colors to achieve light filtering. Along a direction perpendicular to the plane of the substrate, the connecting portions of the first and second light-filtering layers are stacked to form a light-blocking structure. The connecting portions of the first and second light-filtering layers can absorb light of different wavelength ranges respectively, and their overlap achieves a light-blocking effect, preventing crosstalk between light-emitting units of different emitting colors and improving the light-emitting effect. The first and second curvatures are different. That is, the steepness and curvature of the second side and the first side are different. This differentiated curved surface design, combined with the shape, size, edge contour, and stacking position of the first and second light-emitting units, is specifically optimized to ensure that the second and first sides can accurately adapt to the shape of the first and second light-emitting units, meet the light-blocking requirements of the overall light-filtering structure, and improve the performance of the display panel. Attached Figure Description

[0038] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, wherein the same or similar reference numerals denote the same or similar features.

[0039] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of this application; Figure 2 yes Figure 1 A magnified schematic diagram of the local structure at point B; Figure 3a This is one embodiment provided. Figure 2 A partial sectional view at point CC; Figure 3b This is one embodiment provided. Figure 2 A partial sectional view at point DD; Figure 3c This is provided in another embodiment. Figure 2 A partial sectional view at point CC; Figure 4 This is provided in another embodiment. Figure 2 A partial sectional view at point DD; Figure 5 This is one embodiment provided. Figure 2 A partial sectional view at the EE section; Figure 6 This is yet another embodiment provided. Figure 2 A partial sectional view at point CC; Figure 7 This is one embodiment provided. Figure 1 A partial sectional view at point GG; Figure 8 This is a schematic diagram showing the relative positions of the first opening and the pixel opening provided in one embodiment; Figure 9 This is a schematic diagram showing the relative positions of the first opening and the pixel opening provided in another embodiment; Figure 10 This is a schematic diagram showing the relative positions of the first opening and the pixel opening provided in yet another embodiment; Figure 11 This is a schematic diagram showing the relative positions of the first opening and the pixel opening provided in yet another embodiment; Figure 12 This is a schematic diagram showing the relative positions of the first opening and the pixel opening provided in yet another embodiment; Figure 13 This is a schematic diagram showing the relative positions of the first opening and the pixel opening provided in yet another embodiment; Figure 14 This is yet another embodiment provided. Figure 2 A partial sectional view at point CC; Figure 15 This is one embodiment provided. Figure 1 A partial sectional view at point FF; Figure 16 This is a schematic diagram showing the relative positions of a pixel unit and a light-transmitting hole provided in one embodiment; Figure 17 This is a schematic diagram showing the relative positions of a pixel unit and a support portion according to one embodiment; Figure 18 This is a schematic diagram of another display panel structure provided in an embodiment of this application; Figure 19 This is one embodiment provided. Figure 18 A partial sectional view of the cover plate at point RR; Figure 20 This is one embodiment provided. Figure 18 A partial sectional view of the support structure at point RR; Figure 21 This is yet another embodiment provided. Figure 2 A partial sectional view at point CC.

[0040] Explanation of reference numerals in the attached figures: 100, Substrate; 200, Light-emitting unit; 201, First electrode layer; 202, Light-emitting layer; 203, Second electrode layer; 210, First light-emitting unit; 220, Second light-emitting unit; 230, Third light-emitting unit; 300, Filter structure; 310, First filter layer; 320, Second filter layer; 330, Third filter layer; 301, Filter portion; 302, Connecting portion; 400, Encapsulation layer; 410, First encapsulation layer; 420, Second encapsulation layer; 430, Third encapsulation layer; 500, Touch layer; 501, Touch signal line; 510, Touch substrate; 520, Touch trace; 600, Pixel definition layer; 610, First sub-pixel definition layer; 620, Second sub-pixel definition layer; 700, Cover plate; 710, Second cover plate portion; 720, First cover plate portion; 800, Support structure; 810, Base layer; 820, First sub-layer; 830, Second sub-layer; 840, Third sub-layer; 850, Fourth sub-layer; T, Light-blocking structure; PS, Support portion; B1, First edge; B2, Second edge; B3, Third edge; B4, Fourth edge; B5, Fifth edge; B6, Sixth edge; C1, First side surface; C2, Second side surface; C3, Third side surface; C4, Fourth side surface Surface; C5, fifth side surface; C6, sixth side surface; C7, seventh side surface; C8, eighth side surface; D, bottom surface; Q, inclined surface; K, light-transmitting opening; K11, first sub-opening; K12, second sub-opening; K13, third sub-opening; K14, fourth sub-opening; K15, fifth sub-opening; K16, sixth sub-opening; K2, first light-transmitting hole; K3, pixel opening; K31, first pixel sub-opening; K32, second pixel sub-opening; K4, second light-transmitting hole; KC, first slot; S1, first opening; S2, second opening; S3, third opening; S4, fourth opening; W1, first light-shielding layer; W10, first light-shielding part; W2, second light-shielding layer; W20, second light-shielding part; H, blocking part; L, first signal line; P, pixel unit; P1, first type unit; P2, second type unit; AA, display area; NA, non-display area; TA, hole area; ZA, first barrier area; WA, bending area; PA, planar area; X, first direction; Y, second direction; Z, direction perpendicular to the plane of the substrate. Detailed Implementation

[0041] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0043] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. It should be noted that, unless otherwise specified, different features in the embodiments of this application can be combined with each other.

[0044] For ease of understanding, the accompanying diagram shows the mutually orthogonal X-axis, Y-axis, and Z-axis. The direction along the axes is called the X-direction, the direction along the Y-axis is called the Y-direction, and the direction along the Z-axis is called the Z-direction. The Z-direction is the normal direction relative to the plane containing the X and Y directions. Furthermore, a view where various elements are observed parallel to the plane containing the X and Y directions is called a top view. Alternatively, the planes in the X and Y directions can be planes parallel to the display surface of the display panel, and the Z-direction can be a direction parallel to the thickness direction of the display panel.

[0045] For certain elements, terms like "above" or "overhead" are sometimes used when describing the position of an element in the Z direction, and "below" or "under" are used when describing the position of an element in the opposite direction. Furthermore, when using terms like "above," "overhead," "below," "under," or "relative" to define the positional relationship between two elements, this includes not only the state where the two elements are directly adjacent, but also the state where the two elements are separated by gaps or other elements. Additionally, terms like "first," "second," and "third" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance.

[0046] Figure 1 This is a schematic diagram of a display panel according to one embodiment of this application. The display panel can be an organic light-emitting diode (OLED) display panel or a quantum dot (QLED) display panel. The display panel includes a display area AA with display function and a non-display area NA.

[0047] The display area AA of the display panel can be rectangular, square, circular, oval, or other shapes.

[0048] like Figure 2 , Figure 3a as well as Figure 3bAs shown, an embodiment of the first aspect of this application provides a display panel, including: a substrate 100, a plurality of light-emitting units 200, and a light-filtering structure 300. Each light-emitting unit 200 is disposed on one side of the substrate 100, and the light-emitting unit 200 includes a plurality of first light-emitting units 210 and a plurality of second light-emitting units 220, wherein the first light-emitting units 210 and the plurality of second light-emitting units 220 emit different colors. The light-filtering structure 300 is disposed on the side of the light-emitting units 200 away from the substrate 100, and the light-filtering structure 300 includes a first light-filtering layer 310, a second light-filtering layer 320, and a third light-filtering layer 330 stacked together. The first light-filtering layer 310 and the second light-filtering layer 320 each include a plurality of filter portions 301 and connecting portions 302 interconnected with each other. At least one filter portion 301 in the first filter layer 310 has its orthographic projection on the substrate 100 overlapping with the orthographic projection of the first light-emitting unit 210 on the substrate 100. Similarly, at least one filter portion 301 in the second filter layer 320 has its orthographic projection on the substrate 100 overlapping with the orthographic projection of the second light-emitting unit 220 on the substrate 100. Along a direction Z perpendicular to the plane of the substrate, the connecting portions 302 in the first filter layer 310 and the connecting portions 302 in the second filter layer 320 are stacked to form a light-blocking structure T. The orthographic projection of the light-blocking structure T on the substrate 100 is spaced apart from the orthographic projection of the light-emitting unit 200 on the substrate 100. Based on an adjacent first light-emitting unit 210 and a second light-emitting unit 220, the second filter layer 320 includes a first sub-opening K11 and a first side surface C1 corresponding to the first sub-opening K11. The orthographic projection of the first sub-opening K11 on the substrate 100 covers the orthographic projection of the first light-emitting unit 210 on the substrate 100. The first filter layer 310 covers... The first light-emitting unit 220 includes a second sub-opening K12 and a second side surface C2 corresponding to the second sub-opening K12. The orthogonal projection of the second sub-opening K12 on the substrate 100 covers the orthogonal projection of the second light-emitting unit 220 on the substrate 100. In the cross section passing through the first light-emitting unit 210 in the direction Z perpendicular to the plane of the substrate, the first side surface C1 includes a curved first edge B1 line. In the cross section passing through the second light-emitting unit 220 in the direction Z perpendicular to the plane of the substrate, the second side surface C2 includes a curved second edge B2 line. The curvature of the first edge B1 line is a first curvature, and the curvature of the second edge B2 line is a second curvature. The first curvature and the second curvature are different.

[0049] The display panel provided in this embodiment of the invention includes a substrate 100, light-emitting units 200, and a light-filtering structure 300. Light-filtering portions 301 are respectively disposed corresponding to light-emitting units 200 of different emitting colors to achieve light filtering. Along the direction Z perpendicular to the plane of the substrate, the connecting portions 302 of the first light-filtering layer 310 and the connecting portions 302 of the second light-filtering layer 320 are stacked to form a light-blocking structure T. The connecting portions 302 of the first light-filtering layer 310 and the connecting portions 302 of the second light-filtering layer 320 can absorb light of different wavelength ranges respectively. Their overlap achieves a light-blocking effect, avoiding crosstalk between light-emitting units 200 of different emitting colors and improving the light-emitting effect. The first curvature and the second curvature are different. That is, the steepness and curvature of the second side surface C2 and the first side surface C1 are different. This differentiated curved surface design combines the shape, size, edge contour, and stacking position of the first light-emitting unit 210 and the second light-emitting unit 220 with the stacking position of the first filter layer 310 and the second filter layer 320. It is specifically optimized to ensure that the second side C2 and the first side C1 can accurately fit the shape of the first light-emitting unit 210 and the second light-emitting unit 220, and meet the light-shielding requirements of the overall filter structure 300, thereby improving the performance of the display panel.

[0050] Optionally, the maximum value of the first curvature is less than the maximum value of the second curvature, which reasonably adapts to the light emission and arrangement requirements of the first light-emitting unit 210 and the second light-emitting unit 220, taking into account both the light-blocking effect and the structural compactness, and further optimizing the space utilization of the overall filter structure 300.

[0051] Optionally, in the light-blocking structure T located between two adjacent light-emitting units 200 along the direction Z perpendicular to the plane of the substrate, the thickness of the connection portion 302 of the first filter layer 310 is greater than the thickness d2 of the connection portion 302 of the second filter layer 320.

[0052] Through research and experimentation, the inventors discovered that by adopting the aforementioned thickness limitation, the light-shielding performance of the connecting portion 302 of the first filter layer 310 can be effectively improved, avoiding light leakage due to insufficient thickness, and thus suppressing color crosstalk between different light-emitting units 200. The layered light-blocking structure T design adapted to the connecting portion 302 of the filter structure 300 ensures that the connecting portion 302 of the first filter layer 310 can stably perform its light-shielding function, guaranteeing the stability and reliability of the overall light-blocking structure T and improving the performance of the display panel.

[0053] Optionally, along the direction Z perpendicular to the plane of the substrate, the connection portion 302 of the first filter layer 310 and the second filter layer 320 and the light-emitting unit 200 do not overlap.

[0054] Optionally, the substrate 100 further includes a substrate and a pixel driving circuit. For example, the substrate 100 includes a substrate and a driving circuit layer and a planarization layer disposed on the substrate. The pixel driving circuit includes a transistor and a capacitor. The capacitor includes a first electrode and a second electrode. The transistor includes a source, a drain, a gate, and a semiconductor layer. The driving circuit layer also includes multiple signal lines, such as data signal lines, scan signal lines, driving power supply voltage signal lines, etc. The driving circuit layer includes multiple conductive layers, including a first conductive layer, a second conductive layer, and a third conductive layer. The gate and the first electrode may be located on the first conductive layer, the second electrode may be located on the second conductive layer, and the source and drain may be located on the third conductive layer.

[0055] The substrate can be a rigid substrate, such as a glass substrate, or a flexible substrate, made of materials such as polyimide, polystyrene, polyethylene terephthalate, poly(p-xylene), polyethersulfone, or polyethylene naphthalate. The substrate is mainly used to support the devices mounted on it.

[0056] Optionally, the light-emitting unit 200 includes a first electrode layer 201, a light-emitting layer 202, and a second electrode layer 203 stacked in a direction away from the substrate 100, wherein the first electrode layer 201 includes a first electrode block.

[0057] Optionally, the light-emitting layer 202 includes one or more of the following: an electron injection layer, an electron transport layer, a light-emitting material layer, a hole blocking layer, an electron blocking layer, a hole transport layer, and a hole injection layer. The specific type of light-emitting layer 202 can be selected based on its specific characteristics, and there are no particular limitations. The electron injection layer, electron transport layer, and hole blocking layer can be disposed between the second electrode layer 203 and the light-emitting material layer. The electron blocking layer, hole transport layer, and hole injection layer can be disposed between the first electrode layer 201 and the light-emitting material layer.

[0058] The material of the first electrode layer 201 is generally a material with a high work function to improve hole injection efficiency. It can be gold (Au), platinum (Pt), titanium (Ti), silver (Ag), indium tin oxide (ITO), zinc tin oxide (IZO), or a transparent conductive polymer (such as polyaniline). For example, the first electrode layer 201 can be made of ITO-Ag-ITO composite material, without any special limitations.

[0059] The material of the second electrode layer 203 can be one of the following metals: silver (Ag), aluminum (Al), lithium (Li), magnesium (Mg), ytterbium (Yb), calcium (Ca), or indium (In). It can also be an alloy of the aforementioned metals, such as magnesium-silver alloy (Mg / Ag) or lithium-aluminum alloy (Li / Al). This embodiment does not limit the material in this regard.

[0060] Optionally, the display panel includes an encapsulation layer 400 disposed on the side of the light-emitting unit 200 away from the substrate 100 to encapsulate and protect the light-emitting unit 200.

[0061] Optionally, the encapsulation layer 400 includes a first encapsulation layer 410, the material of which includes an inorganic material. Specifically, the inorganic material may be silicon nitride, silicon oxide, or silicon oxynitride, and may be formed using a CVD (Chemical Vapor Deposition) process.

[0062] Optionally, the encapsulation layer 400 further includes a second encapsulation layer 420 located on the side of the first encapsulation layer 410 facing away from the substrate 100. The material of the second encapsulation layer 420 includes an organic material. The organic material can be made of resin or polymer organic material, and can be formed using IJP (Inkjet printing) process.

[0063] Optionally, the encapsulation layer 400 may further include a third encapsulation layer 430 located on the side of the second encapsulation layer 420 away from the substrate 100. The material of the third encapsulation layer 430 includes inorganic materials. Adding an inorganic encapsulation layer 400 outside the organic encapsulation layer 400 can further improve the encapsulation effect of the encapsulation layer 400. In this embodiment, the material of the third encapsulation layer 430 may be the same as or different from the material of the first encapsulation layer 410, and there is no special limitation.

[0064] Optionally, the first encapsulation layer 410 and the third encapsulation layer 430 are made of the same material, so that the first encapsulation layer 410 and the third encapsulation layer 430 can be manufactured using the same equipment, which can simplify the manufacturing process of the display panel.

[0065] Optionally, the display panel further includes a plurality of third light-emitting units 230, and the light-filtering structure 300 further includes a third light-filtering layer 330. The third light-filtering layer 330 is stacked with the first light-filtering layer 310 and the second light-filtering layer 320. The third light-filtering layer 330 includes a plurality of filter portions 301 and connecting portions 302 connecting the plurality of filter portions 301. The orthographic projection of at least one filter portion 301 in the third light-filtering layer 330 on the substrate 100 overlaps with the orthographic projection of the third light-emitting unit 230 on the substrate 100. Along the direction Z perpendicular to the plane of the substrate, the connecting portions 302 of the first light-filtering layer 310, the connecting portions 302 of the second light-filtering layer 320, and the connecting portions 302 of the third light-filtering layer 330 are stacked to form a light-blocking structure T. Along the direction Z perpendicular to the plane of the substrate, in the light-blocking structure T located between two adjacent light-emitting units 200, the thickness of the connecting portion 302 in the first light-filtering layer 310 is greater than the thickness d3 of the connecting portion 302 in the third light-filtering layer 330.

[0066] Along the direction Z perpendicular to the plane of the substrate, the connecting portions 302 of the first filter layer 310, the connecting portions 302 of the second filter layer 320, and the connecting portions 302 of the third filter layer 330 are stacked to form a light-blocking structure T. The connecting portions 302 of the first filter layer 310, the connecting portions 302 of the second filter layer 320, and the connecting portions 302 of the third filter layer 330 can absorb light of different wavelength ranges respectively. The three overlap to further improve the light-blocking effect.

[0067] Optionally, the first light-emitting unit 210 is a blue light-emitting unit, the second light-emitting unit 220 is a red light-emitting unit, and the third light-emitting unit 230 is a green light-emitting unit. Of course, depending on actual needs, the first light-emitting unit 210, the second light-emitting unit 220, and the third light-emitting unit 230 can also be light-emitting units 200 of other colors.

[0068] Optionally, based on the same first light-emitting unit 210, the second filter layer 320 includes a first sub-opening K11, and the third filter layer 330 includes a third sub-opening K13. The orthographic projection of the first sub-opening K11 on the substrate 100 covers the orthographic projection of the first light-emitting unit 210 on the substrate 100, and the orthographic projection of the third sub-opening K13 on the substrate 100 covers the orthographic projection of the first light-emitting unit 210 on the substrate 100. Along the direction Z perpendicular to the plane of the substrate, based on the first light-emitting unit 210, the connection in the second filter layer 320... Part 302 includes a first side surface C1 corresponding to the formation of the first sub-opening K11, and the connecting part 302 in the third filter layer 330 includes a fourth side surface C4 corresponding to the formation of the third sub-opening K13; in the cross section passing through the first light-emitting unit 210 in the direction Z perpendicular to the plane of the substrate, the first side surface C1 includes a curved first edge B1 line, and the fourth side surface C4 includes a curved third edge B3 line. The curvature of the first edge B1 line is a first curvature, and the curvature of the third edge B3 line is a third curvature. The first curvature and the third curvature are different.

[0069] In this embodiment, the first curvature and the third curvature are different, meaning that the steepness and curvature of the first side C1 and the fourth side C4 differ. This differentiated surface design, combined with the size and edge contour of the first light-emitting unit 210 and the stacking positions of the second filter layer 320 and the third filter layer 330, is specifically optimized to ensure that the first side C1 and the fourth side C4 can accurately fit the shape of the first light-emitting unit 210 and meet the light-shielding requirements of the overall filter structure 300, thereby improving the performance of the display panel.

[0070] Optionally, in the light-blocking structure T located between two adjacent light-emitting units 200 along the direction Z perpendicular to the plane of the substrate, the thickness of the connecting portion 302 in the first filter layer 310 is greater than the thickness d3 of the connecting portion 302 in the third filter layer 330.

[0071] Along the direction Z perpendicular to the plane of the substrate, the connecting portions 302 of the first filter layer 310, the connecting portions 302 of the second filter layer 320, and the connecting portions 302 of the third filter layer 330 are stacked to form a light-blocking structure T. The connecting portions 302 of the first filter layer 310, the connecting portions 302 of the second filter layer 320, and the connecting portions 302 of the third filter layer 330 can absorb light of different wavelength ranges respectively. The three overlap to further improve the light-blocking effect.

[0072] Optionally, the first light-emitting unit 210 is a blue light-emitting unit, the second light-emitting unit 220 is a red light-emitting unit, and the third light-emitting unit 230 is a green light-emitting unit. Of course, depending on actual needs, the first light-emitting unit 210, the second light-emitting unit 220, and the third light-emitting unit 230 can also be light-emitting units 200 of other colors.

[0073] like Figures 2 to 5 As shown, in some optional embodiments, the third filter layer 330 is located on the side of the second filter layer 320 away from the substrate 100.

[0074] like Figures 3c to 5 As shown, optionally, based on the same first light-emitting unit 210, the second filter layer 320 includes a first sub-opening K11, and the third filter layer 330 includes a third sub-opening K13. The orthographic projection of the first sub-opening K11 on the substrate 100 covers the orthographic projection of the first light-emitting unit 210 on the substrate 100, and the orthographic projection of the third sub-opening K13 on the substrate 100 covers the orthographic projection of the first light-emitting unit 210 on the substrate 100. The orthographic projection of the connecting portion 302 of the second filter layer 320 on the substrate 100 includes a first edge B1 corresponding to the formation of the first sub-opening K11, and the orthographic projection of the connecting portion 302 of the third filter layer 330 on the substrate 100 includes a second edge B2 corresponding to the formation of the third sub-opening K13. The first edge B1 is disposed close to the orthographic projection of the first light-emitting unit 210 on the substrate 100 relative to the second edge B2.

[0075] In this embodiment, the first edge B1 is positioned relative to the second edge B2, close to the orthogonal projection of the first light-emitting unit 210 onto the substrate 100. This ensures the overlap area of ​​the third filter layer 330 and the second filter layer 320 along the direction Z perpendicular to the plane of the substrate, thereby improving the light-shielding effect. Simultaneously, the light-blocking structure T also blocks the traces located on the side of the connecting portion 302 facing the substrate 100, preventing the traces from becoming visible, ensuring the display effect of the display panel, and improving the performance of the display panel.

[0076] Since the first edge B1 is positioned closer to the orthogonal projection of the first light-emitting unit 210 on the substrate 100 than the second edge B2, the orthogonal projection area of ​​the first sub-opening K11 on the substrate 100 is smaller than the orthogonal projection area of ​​the third sub-opening K13 on the substrate 100.

[0077] like Figures 3c to 5 As shown, optionally, based on the same second light-emitting unit 220, the first filter layer 310 includes a second sub-opening K12, and the third filter layer 330 includes a fourth sub-opening K14. The orthographic projection of the second sub-opening K12 on the substrate 100 covers the orthographic projection of the second light-emitting unit 220 on the substrate 100, and the orthographic projection of the fourth sub-opening K14 on the substrate 100 covers the orthographic projection of the second light-emitting unit 220 on the substrate 100. The orthographic projection of the connecting portion 302 of the first filter layer 310 on the substrate 100 includes a third edge B3 corresponding to the formation of the second sub-opening K12, and the orthographic projection of the connecting portion 302 of the third filter layer 330 on the substrate 100 includes a fourth edge B4 corresponding to the formation of the fourth sub-opening K14. The third edge B3 is disposed close to the orthographic projection of the second light-emitting unit 220 on the substrate 100 relative to the fourth edge B4. Based on the same third light-emitting unit 230, the first filter layer 310 includes a fifth sub-opening K15, and the second filter layer 320 includes a sixth sub-opening K16. The orthographic projection of the fifth sub-opening K15 on the substrate 100 covers the orthographic projection of the third light-emitting unit 230 on the substrate 100, and the orthographic projection of the sixth sub-opening K16 on the substrate 100 covers the orthographic projection of the third light-emitting unit 230 on the substrate 100. The orthographic projection of the connecting portion 302 of the first filter layer 310 on the substrate 100 includes a fifth edge B5 corresponding to the formation of the fifth sub-opening K15, and the orthographic projection of the connecting portion 302 of the second filter layer 320 on the substrate 100 includes a sixth edge B6 corresponding to the formation of the sixth sub-opening K16. The fifth edge B5 is disposed close to the orthographic projection of the third light-emitting unit 230 on the substrate 100 relative to the sixth edge B6.

[0078] In this embodiment, for the peripheral area of ​​the second light-emitting unit 220, the third edge B3 is positioned closer to the orthogonal projection of the second light-emitting unit 220 onto the substrate 100 relative to the fourth edge B4; that is, the third edge B3 is positioned closer to the second light-emitting unit 220 relative to the fourth edge B4. The light-shielding edge (third edge B3) of the connection portion 302 of the first filter layer 310 is located on the inner side, and the light-shielding edge (fourth edge B4) of the connection portion 302 of the third filter layer 330 is located on the outer side, consistent with the light-shielding design around the first light-emitting unit 210, thereby achieving precise blocking of light around the second light-emitting unit 220.

[0079] Meanwhile, a similar light-shielding design can also be adopted for the surrounding area of ​​the third light-emitting unit 230, that is, the fifth edge B5 is set close to the orthographic projection of the third light-emitting unit 230 on the substrate 100 relative to the sixth edge B6, so as to achieve precise blocking of the light around the third light-emitting unit 230 and avoid light leakage.

[0080] It should be noted that the above-mentioned light-shielding edge settings around the second light-emitting unit 220 and the third light-emitting unit 230 can be used individually or both at the same time. The specific choice can be made according to the actual structure of the display panel and the display requirements.

[0081] Since the third edge B3 is positioned closer to the orthographic projection of the second light-emitting unit 220 on the substrate 100 than the fourth edge B4, and the fifth edge B5 is positioned closer to the orthographic projection of the third light-emitting unit 230 on the substrate 100 than the sixth edge B6, correspondingly, the orthographic projection area of ​​the second sub-opening K12 on the substrate 100 is smaller than the orthographic projection area of ​​the fourth sub-opening K14 on the substrate 100. The orthographic projection area of ​​the fifth sub-opening K15 on the substrate 100 is smaller than the orthographic projection area of ​​the sixth sub-opening K16 on the substrate 100.

[0082] like Figures 4 to 5 As shown, in some optional embodiments, along the direction Z perpendicular to the plane of the substrate, based on the second light-emitting unit 220, the connecting portion 302 in the first filter layer 310 includes a second side surface C2 corresponding to the formation of the second sub-opening K12; based on the third light-emitting unit 230, the connecting portion 302 in the first filter layer 310 includes a third side surface C3 forming the fifth sub-opening K15; in the cross section passing through the adjacent second light-emitting unit 220 and third light-emitting unit 230, the second side surface C2 includes a curved second edge line B2, and the third side surface C3 includes a curved fourth edge line B4. The curvature of the second edge line B2 is a second curvature, and the curvature of the fourth edge line B4 is a fourth curvature. The second curvature and the fourth curvature are different.

[0083] Curvature is a geometric parameter characterizing the degree of local bending of a curve or surface, used to quantify the severity of bending on a structural surface or contour curve. At the same location on a curve / surface, curvature and radius of curvature are inversely proportional. The magnitude of curvature corresponds to the following bending characteristics: the larger the curvature value, the more severe the bending and the sharper the contour bending; the smaller the curvature value, the gentler the bending.

[0084] It should be noted that, in this embodiment, the second side C2 and the third side C3 of the connecting portion 302 of the first filter layer 310 can refer to the side that is parallel to and intersects with the substrate 100. For example, when a touch layer 500 is provided between the first filter layer 310 and the substrate 100, the second side C2 and the third side C3 can refer to the portion of the connecting portion 302 of the first filter layer 310 located in the peripheral area of ​​the second light-emitting unit 220 and the third light-emitting unit 230 that is in contact with the surface of the touch layer 500 on the side away from the substrate 100. For the second light-emitting unit 220 and the third light-emitting unit 230, the second curvature and the third side C3 are different to reduce the manufacturing difficulty, specifically adapt to the different sizes and arrangement spacing of the second light-emitting unit 220 and the third light-emitting unit 230, without the need to use a side structure with a uniform curvature, thereby improving the adaptability of the connecting portion 302 of the first filter layer 310 to the overall display structure and reducing the difficulty of structural design.

[0085] Meanwhile, in the cross-section passing through the adjacent second light-emitting unit 220 and third light-emitting unit 230, the second side surface C2 includes a curved second edge line B2, and the third side surface C3 includes a curved fourth edge line B4. This increases the contact area between the connection portion 302 of the first filter layer 310 and the surrounding area of ​​the light-emitting unit 200, improving the sealing and comprehensiveness of light shielding. It effectively blocks the light from the second light-emitting unit 220 and the third light-emitting unit 230 from leaking to the surrounding area, thereby suppressing color crosstalk and ensuring the color purity of the displayed image. Compared with the angular structure, the curved surface design can reduce edge damage and chipping problems that occur during the fabrication process of the connection portion 302 of the first filter layer 310, improving the fabrication yield, while enhancing its mechanical structural stability and extending its service life.

[0086] Optionally, the maximum value of the second curvature is greater than the maximum value of the fourth curvature. The second side C2 is positioned around the second light-emitting unit 220, and the third side C3 is positioned around the third light-emitting unit 230. By making the maximum value of the second curvature greater than the maximum value of the fourth curvature, the second side C2 can be made steeper, improving the light-blocking effect on the second light-emitting unit 220. At the same time, the third side C3 is made relatively flat, reducing the space occupied by the third side C3 while ensuring the light-blocking effect on the third light-emitting unit 230. This reasonably adapts to the arrangement requirements of the third light-emitting unit 230, balancing the light-blocking effect and structural compactness, and further optimizing the space utilization of the overall filter structure 300.

[0087] Optionally, along the direction Z perpendicular to the plane of the substrate, the curvature of the edge line corresponding to the surface of at least one filter portion 301 in the first filter layer 310 facing away from the substrate 100 is less than the second curvature and the fourth curvature. In this embodiment, the surface of the filter portion 301 of the first filter layer 310 facing away from the substrate 100 can be either a plane or a curved surface. The filter portion 301 of the first filter layer 310 is used to allow light to pass through to achieve the corresponding color display. Its surface facing away from the substrate 100 has a smaller curvature (smoother), which can reduce the refraction distortion of light when passing through the surface, ensure the stability and consistency of light emission, and improve the uniformity of the displayed color.

[0088] like Figure 3c As shown, the first side C1 and the fourth side C4 are both arranged around the first unit. The first side C1 can refer to the interface between the connecting part 302 of the second filter layer 320 and the surface of the first filter layer 310 facing away from the substrate 100 in the peripheral area of ​​the first light-emitting unit 210. The fourth side C4 can refer to the interface between the connecting part 302 of the third filter layer 330 and the surface of the second filter layer 320 facing away from the substrate 100 in the peripheral area of ​​the first light-emitting unit 210.

[0089] Optionally, the maximum value of the first curvature is greater than the maximum value of the third curvature, which can make the surface of the first side C1 steeper and improve the blocking effect on the light of the first light-emitting unit 210.

[0090] like Figure 4 As shown, optionally, based on the second light-emitting unit 220, along the direction Z perpendicular to the plane of the substrate, the connecting portion 302 in the third filter layer 330 includes a fifth side surface C5 corresponding to the formation of the fourth sub-opening K14. In the cross section passing through the second light-emitting unit 220, the fifth side surface C5 includes a curved fifth edge line B5. The curvature of the fifth edge line B5 is the fifth curvature, and the maximum value of the fifth curvature is less than the maximum value of the second curvature.

[0091] In this embodiment, the fifth side surface C5 and the first curved surface are both located in the peripheral area of ​​the second light-emitting unit 220 to block the light around the second light-emitting unit 220. By making the maximum value of the fifth curvature smaller than the maximum value of the second curvature, the fifth side surface C5 can be made smoother, forming a differentiated fit with the second side surface C2. This ensures the light-blocking effect on the second light-emitting unit 220 while avoiding structural conflicts between the fifth side surface C5 and the second side surface C2. In addition, the smooth curved surface design can reduce the reflection of light on the fifth side surface C5, avoid interfering with the light emission effect of the second light-emitting unit 220, and further optimize the color display purity.

[0092] like Figure 5As shown, optionally, based on the third light-emitting unit 230, along the direction Z perpendicular to the plane of the substrate, the connecting portion 302 in the third filter layer 330 includes a sixth side surface C6 corresponding to the formation of the sixth sub-opening K16. In the cross section passing through the third light-emitting unit 230, the sixth side surface C6 includes a curved sixth edge line B6, the curvature of the sixth edge line B6 is the sixth curvature, and the maximum value of the fourth curvature is greater than the maximum value of the sixth curvature.

[0093] The third side C3 and the sixth side C6 are arranged around the third light-emitting unit 230. By making the maximum value of the fourth curvature greater than the maximum value of the sixth curvature, the third side C3 can be made steeper, thereby improving the blocking effect on the light of the third light-emitting unit 230.

[0094] like Figures 3c to 5 As shown, in some optional embodiments, along a direction parallel to the plane of the substrate 100, the distance between the first side C1 and the fourth side C4 based on the same first light-emitting unit 210 is the first distance; the distance between the third side C3 and the sixth side C6 based on the same third light-emitting unit 230 is the second distance; and the distance between the second side C2 and the fifth side C5 based on the same second light-emitting unit 220 is the third distance. No two of the first, second, and third distances are equal.

[0095] It should be noted that the first side C1 and the fourth side C4 are both located in the peripheral area of ​​the first light-emitting unit 210, the third side C3 and the sixth side C6 are both located in the peripheral area of ​​the third light-emitting unit 230, and the second side C2 and the fifth side C5 are both located in the peripheral area of ​​the second light-emitting unit 220. Any two of the first distance, the second distance, and the third distance are not equal to reduce the manufacturing difficulty. It is not necessary to restrict the first distance, the second distance, and the third distance to be equal. They can be set according to the materials of the first filter layer 310, the second filter layer 320, and the third filter layer 330 and the manufacturing order.

[0096] Optionally, the first distance is smaller than the second distance, and the second distance is smaller than the third distance, to match the manufacturing process and the thickness of the materials of the first filter layer 310, the second filter layer 320, and the third filter layer 330.

[0097] like Figures 3c to 5 as well as Figure 7As shown, in some optional embodiments, the display panel includes a non-display area NA and a display area AA. The non-display area NA at least partially surrounds the display area AA. The display panel also includes a touch layer 500 disposed between the light-emitting unit 200 and the light-filtering structure 300. In the display area AA, the touch layer 500 includes touch traces 520, and the orthographic projection of the light-blocking structure T on the substrate 100 covers the orthographic projection of the touch traces 520 on the substrate 100. And / or, in the non-display area NA, the touch layer 500 includes touch signal lines 501, and the orthographic projection of the light-blocking structure T on the substrate 100 covers the orthographic projection of the touch signal lines 501 on the substrate 100.

[0098] In this embodiment, the area where the light-blocking structure T is located is larger than the area where the touch signal line 501 is located. For example, along the direction parallel to the plane where the substrate 100 is located, the edge of the light-blocking structure T is located away from the display area AA relative to the edge of the touch signal line 501, and the edge of the touch signal line 501 is located inside the edge of the light-blocking structure T.

[0099] Optionally, the touch layer 500 may also include a touch substrate 510, which is disposed between the filter structure 300 and the touch trace 520.

[0100] like Figure 6 As shown, in some optional embodiments, the light-blocking structure T includes a plurality of first light-transmitting holes K2, and the orthographic projection of the light-emitting unit 200 on the substrate 100 and the orthographic projection of the first light-transmitting hole K2 on the substrate 100 are spaced apart.

[0101] It should be noted that the first light-transmitting hole K2 can penetrate through each connecting part 302 in the light-blocking structure T to improve the light transmittance of the display panel.

[0102] Optionally, the light-emitting unit 200 and the first light-transmitting hole K2 do not overlap along the direction Z perpendicular to the plane of the substrate.

[0103] like Figure 6 As shown, in some optional embodiments, the display panel further includes a pixel definition layer 600, which is disposed on one side of the substrate 100. The pixel definition layer 600 includes a plurality of pixel openings K3 and a plurality of second light-transmitting holes K4. A light-emitting unit 200 is at least partially located in a pixel opening K3. Along the direction Z perpendicular to the plane of the substrate, the second light-transmitting hole K4 and the corresponding first light-transmitting hole K2 at least partially overlap.

[0104] It should be noted that in this embodiment, along the direction Z perpendicular to the plane of the substrate, the second light-transmitting hole K4 and the first light-transmitting hole K2 overlap at least partially. Therefore, external light can enter the display panel through the first light-transmitting hole K2 and the second light-transmitting hole K4 to improve the light transmittance of the display panel, thereby ensuring the normal operation of the optical components of the display panel, such as the camera.

[0105] The light-emitting unit 200 is at least partially located within the pixel opening K3, so as to limit the light emission range of the light-emitting unit 200 by utilizing the pixel opening K3.

[0106] Optionally, the second light-transmitting hole K4 and the first light-transmitting hole K2 form a light-transmitting opening K.

[0107] Optionally, a third light-transmitting hole is provided in the second electrode layer 203. Along the direction Z perpendicular to the plane of the substrate, the third light-transmitting hole and the first light-transmitting hole K2 overlap at least partially, and the third light-transmitting hole and the second light-transmitting hole K4 overlap at least partially, so as to further improve the light transmittance of the display panel.

[0108] Optionally, along the direction Z perpendicular to the plane of the substrate, the orthographic projection of the second light-transmitting hole K4 on the substrate 100 and the orthographic projection of the corresponding first light-transmitting hole K2 on the substrate 100 at least partially overlap.

[0109] like Figure 6 As shown, in some optional embodiments, along the direction away from the substrate 100, the pixel definition layer 600 includes a first sub-pixel definition layer 610 and a second sub-pixel definition layer 620. The first sub-pixel definition layer 610 defines a plurality of pixel openings K3 and a plurality of second light-transmitting holes K4. The first sub-pixel definition layer 610 includes light-shielding material and second light-transmitting holes K4.

[0110] In this embodiment, the first sub-pixel definition layer 610 includes a light-shielding material to provide a light-shielding function, while the second sub-pixel definition layer 620 can be made of a conventional light-transmitting material. Considering that the first sub-pixel definition layer 610 includes a light-shielding material, which has a significant impact on the light transmittance, at least a second light-transmitting hole K4 needs to be provided in the first sub-pixel definition layer 610. Of course, the second light-transmitting hole K4 can also be provided on the second sub-pixel definition layer 620 at the same time, and can be connected to the second light-transmitting hole K4 on the first sub-pixel definition layer 610.

[0111] Optionally, the orthographic projection of the second light-transmitting hole K4 on the substrate 100 covers the orthographic projection of the corresponding first light-transmitting hole K2 on the substrate 100, that is, the size and area of ​​the second light-transmitting hole K4 are greater than or equal to the size and area of ​​the first light-transmitting hole K2, or the orthographic projection of the first light-transmitting hole K2 on the substrate 100 covers the orthographic projection of the corresponding second light-transmitting hole K4 on the substrate 100, that is, the size and area of ​​the first light-transmitting hole K2 are greater than or equal to the size and area of ​​the second light-transmitting hole K4.

[0112] Optionally, the orthographic projection of the light-blocking structure T on the substrate 100 lies within the orthographic projection of the second sub-pixel definition layer 620 on the substrate 100, and the orthographic projection of the second sub-pixel definition layer 620 on the substrate 100 lies within the orthographic projection of the first sub-pixel definition layer 610 on the substrate 100. That is, the size of the light-blocking structure T is less than or equal to the size of the second sub-pixel definition layer 620, and the size of the second sub-pixel definition layer 620 is less than or equal to the size of the first sub-pixel definition layer 610.

[0113] like Figures 3c to 5 As shown, in some optional embodiments, along the direction Z perpendicular to the plane where the substrate is located, the first sub-pixel definition layer 610 includes a first surface and a second surface disposed opposite to each other. The first surface is located on the side of the second surface away from the substrate 100. In the region between two adjacent light-emitting units 200, the orthographic projection of the corresponding first surface on the substrate 100 is located within the orthographic projection range of the second surface on the substrate 100.

[0114] The orthographic projection of the second surface onto the substrate 100 forms a projection area, the outline of which corresponds to the outer contour of the second surface, and its coverage is determined by the size and shape of the second surface. The orthographic projection of the first surface onto the substrate 100 forms another projection area, the outline of which corresponds to the outer contour of the first surface, and all boundary points of this projection area are located within the boundary of the projection area formed by the second surface; there is no situation where the projection of the first surface exceeds the projection of the second surface. In other words, when viewed along a direction perpendicular to the substrate 100, the overall outline of the first surface is completely covered by the outline of the second surface, and the first surface does not have any part that exceeds the projection range of the second surface. That is, the size and area of ​​the second surface are greater than or equal to the size and area of ​​the first surface. Along the direction Z perpendicular to the plane of the substrate, the cross-section of the first sub-pixel definition layer 610 can be a regular trapezoid or a curved trapezoid.

[0115] Optionally, the orthographic projection of the second sub-pixel definition layer 620 on the substrate 100 is located within the orthographic projection of the first surface on the substrate 100, that is, along the direction Z perpendicular to the plane of the substrate, the orthographic projections of the two opposite surfaces of the second sub-pixel definition layer 620 on the substrate 100 are both located within the orthographic projection of the first surface on the substrate 100.

[0116] like Figure 6As shown, in some optional embodiments, pixel opening K3 includes a first pixel sub-opening K31 and a second pixel sub-opening K32, a first sub-pixel defining layer 610 includes the first pixel sub-opening K31, a second sub-pixel defining layer 620 includes the second pixel sub-opening K32, the first sub-pixel defining layer 610 includes a seventh side surface C7 forming the first pixel sub-opening K31, and the second sub-pixel defining layer 620 includes an eighth side surface C8 forming the second pixel sub-opening K32; in a cross section perpendicular to the plane of the substrate, the seventh side surface C7 includes a seventh edge line, the eighth side surface C8 includes an eighth edge line, and the substrate 100 includes a baseline, which intersects with the extension lines of the seventh edge line and the eighth edge line, respectively; The angle between the seventh edge line and the baseline is greater than the angle between the eighth edge line and the baseline.

[0117] It is understandable that the seventh side C7 is connected to the first surface and the second surface, respectively, and the eighth side C8 is connected to the two opposite surfaces of the second sub-pixel definition layer 620 along the direction Z perpendicular to the plane of the substrate. The seventh side C7 and the eighth side C8 can be planar or curved. The angle between the seventh edge line and the baseline is greater than the angle between the eighth edge line and the baseline, that is, the seventh side C7 is steeper than the eighth side C8, while the eighth side C8 is relatively gentler, in order to avoid affecting light emission.

[0118] like Figures 8 to 10 As shown, in some optional embodiments, the orthographic projection of pixel opening K3 on substrate 100 is circular or elliptical; the orthographic projection of first sub-opening K11 on substrate 100 is circular or elliptical, and / or, the orthographic projection of second sub-opening K12 on substrate 100 is circular or elliptical, and / or, the orthographic projection of fifth sub-opening K15 on substrate 100 is circular or elliptical.

[0119] It should be noted that the orthographic projection shapes of the first sub-opening K11, the second sub-opening K12, the fifth sub-opening K15, and the pixel opening K3 on the substrate 100 can be matched and set, that is, they can be similar in shape. For example, when the orthographic projection of the pixel opening K3 on the substrate 100 is circular, the orthographic projections of the corresponding first sub-opening K11, the second sub-opening K12, and the fifth sub-opening K15 on the substrate 100 are also circular.

[0120] Alternatively, the orthographic projection of pixel opening K3 onto substrate 100 is elliptical, and the orthographic projections of the corresponding first sub-opening K11, second sub-opening K12, and fifth sub-opening K15 onto substrate 100 are also elliptical, such as... Figure 9As shown, taking the first sub-opening K11 as an example, the major axes of the orthographic projections of the first sub-opening K11 and the pixel opening K3 on the substrate 100 can be rotated clockwise. In a clockwise direction, the angle between the extension lines of the major axes of the orthographic projections of adjacent first sub-opening K11 on the substrate 100 can be equal, and the angle between the extension lines of the major axes of the orthographic projections of adjacent different pixel openings K3 on the substrate 100 can be equal.

[0121] Of course, the orthographic projection shapes of the first sub-opening K11, the second sub-opening K12, the fifth sub-opening K15, and the pixel opening K3 on the substrate 100 can also be different.

[0122] For example, when the orthographic projection of pixel opening K3 on substrate 100 is circular, the orthographic projections of the first sub-opening K11, the second sub-opening K12, and the fifth sub-opening K15 on substrate 100 are elliptical, such as... Figure 10 As shown, the major axis of the orthographic projection of the first sub-opening K11 on the substrate 100 can be rotated clockwise, and the included angle between the extensions of the major axes of the orthographic projections of adjacent first sub-openings K11 on the substrate 100 can be equal, for example, equal to 45°.

[0123] Alternatively, when the orthographic projection of pixel opening K3 on substrate 100 is elliptical, the orthographic projections of the first sub-opening K11, the second sub-opening K12, and the fifth sub-opening K15 on substrate 100 are circular, such as... Figure 8 As shown, the major axis of the orthographic projection of different pixel openings K3 on the substrate 100 can be set by clockwise rotation, and the included angle between the extension lines of the major axis of the orthographic projection of adjacent different pixel openings K3 on the substrate 100 can be equal, for example, equal to 45°.

[0124] The orthographic projection shapes of the first sub-opening K11, the second sub-opening K12, the fifth sub-opening K15, and the pixel opening K3 on the substrate 100 can also be other shapes, such as polygons or irregular shapes. Optionally, the orthographic projection shapes of the first sub-opening K11, the second sub-opening K12, the fifth sub-opening K15, and the pixel opening K3 on the substrate 100 can also be rectangles.

[0125] Optionally, the orthographic projection of the pixel opening K3 onto the substrate 100 is elliptical, and the ratio of the major axis to the minor axis of the ellipse is in the range of 1 to 1.5.

[0126] The orthographic projection of pixel aperture K3 onto substrate 100 is elliptical, which can effectively adjust the overall diffraction intensity distribution, concentrating diffraction energy towards the target direction and reducing diffraction distribution in other directions. The smooth gradient around the ellipse makes the change in diffraction energy relatively gradual, without causing abrupt changes in brightness or color.

[0127] Through research and experimentation, the inventors discovered that diffraction can be effectively reduced when the ratio of the major axis to the minor axis of the ellipse is in the range of 1 to 1.5. Optionally, the ratio of the major axis to the minor axis of the ellipse can be any one of 1, 1.1, 1.2, 1.3, 1.4, or 1.5.

[0128] like Figure 11 As shown, in some optional embodiments, the orthographic projections of the first sub-opening K11, the second sub-opening K12, the fifth sub-opening K15, and the pixel opening K3 onto the substrate 100 are all elliptical. The angle α between the extension of the major axis of the orthographic projection of the first sub-opening K11 onto the substrate 100 and the extension of the major axis of the pixel opening K3 is an acute angle, and / or, the angle between the extension of the major axis of the orthographic projection of the second sub-opening K12 onto the substrate 100 and the extension of the major axis of the pixel opening K3 is an acute angle. And / or, the angle between the extension of the major axis of the orthographic projection of the fifth sub-aperture K15 onto the substrate 100 and the extension of the major axis of the pixel opening K3 is an acute angle, that is, the extension of the major axis of at least one of the first sub-aperture K11, the second sub-aperture K12, and the fifth sub-aperture K15 and the extension of the major axis of the pixel opening K3 do not coincide, so as to disrupt the regularity of the arrangement of the first sub-aperture K11, the second sub-aperture K12, the fifth sub-aperture K15, and the pixel opening K3, disrupt the diffraction period, and improve diffraction.

[0129] In some optional embodiments, the distance between the orthographic projection edge of the first sub-opening K11 on the substrate 100 and the orthographic projection edge of the corresponding pixel opening K3 on the substrate 100 periodically increases or decreases along the circumferential direction; and / or, the distance between the orthographic projection edge of the second sub-opening K12 on the substrate 100 and the orthographic projection edge of the corresponding pixel opening K3 on the substrate 100 periodically increases or decreases along the circumferential direction. The distance between the orthographic projection edge of the fifth sub-opening K15 on the substrate 100 and the orthographic projection edge of the corresponding pixel opening K3 on the substrate 100 periodically increases and decreases along the circumferential direction.

[0130] like Figure 8 or Figure 10 , Figure 11 As shown, taking the first sub-opening K11 as an example, the distance between the orthographic projection edge of the first sub-opening K11 on the substrate 100 and the orthographic projection edge of the corresponding pixel opening K3 on the substrate 100 periodically increases and decreases along the circumferential direction.

[0131] In this embodiment, the periodic increase and decrease of the interval distance along the circumferential direction specifically means that, taking the circumferential direction of the elliptical opening as the trajectory of change, starting from any starting point in the circumferential direction, the interval distance between the edge of at least one of the first sub-opening K11, the second sub-opening K12, and the fifth sub-opening K15 and the edge of the corresponding pixel opening K3 gradually increases along the circumferential direction to a preset maximum value, and then gradually decreases along the circumferential direction to a preset minimum value, completing one "increase-decrease" periodic change; then the above "increase-decrease" process is repeated along the circumferential direction to form a continuous periodic change pattern until the entire circumferential outline of the elliptical opening is covered.

[0132] It should be noted that the limitations of this structural feature do not exclude the following: the rate of increase and the rate of decrease within each periodic unit can be the same or different, as long as the spacing exhibits a periodic "increase-decrease" change along the circumference; the number of periods can be flexibly set according to the size of the elliptical opening and design requirements, and can be one period (i.e., the entire circumference completes one "increase-decrease" change) or multiple periods (i.e., the entire circumference completes multiple "increase-decrease" cycles); the difference between the maximum and minimum spacing values ​​can be set according to the actual application scenario (such as shading effect, light transmission efficiency, processing accuracy, etc.), and this application does not impose specific numerical limitations, but only clarifies its variation law.

[0133] By limiting the interval between the edge of at least one of the first sub-opening K11, the second sub-opening K12, and the fifth sub-opening K15 and the edge of the corresponding pixel opening K3 to periodically increase and decrease along the circumferential direction, the matching accuracy between the first sub-opening K11, the second sub-opening K12, the fifth sub-opening K15, and the pixel opening K3 is ensured, while taking into account both light-blocking performance and light-transmitting efficiency.

[0134] like Figure 12 As shown, in some optional embodiments, the orthographic projection center of the first sub-opening K11 on the substrate 100 and the orthographic projection center of the corresponding pixel opening K3 on the substrate 100 do not overlap, and / or, the orthographic projection center of the second sub-opening K12 on the substrate 100 and the orthographic projection center of the corresponding pixel opening K3 on the substrate 100 do not overlap, and at least one of the fifth sub-openings K15 on the substrate 100 and the orthographic projection center of the corresponding pixel opening K3 on the substrate 100 do not overlap. That is, the orthographic projections of at least one of the first sub-openings K11, the second sub-openings K12, and the fifth sub-openings K15 on the substrate 100 and the orthographic projections of the corresponding pixel opening K3 on the substrate 100 are eccentrically set, and there is a certain distance between the orthographic projection center of at least one of the first sub-openings K11, the second sub-openings K12, and the fifth sub-openings K15 on the substrate 100 and the orthographic projection center of the corresponding pixel opening K3 on the substrate 100.

[0135] like Figure 12 As shown, optionally, the distance between the orthographic projection center of the first sub-aperture K11 on the substrate 100 and the orthographic projection center of the corresponding pixel opening K3 on the substrate 100 is greater than or equal to 1 micrometer, which can disrupt the original diffraction period, weaken the degree of color separation of the primary diffraction spot and the intensity of the secondary diffraction spot, reduce the color intensity of the central diffraction spot and reduce the number of peripheral diffraction rings.

[0136] Optionally, the distance between the orthographic projection center of at least one of the first sub-opening K11, the second sub-opening K12, and the fifth sub-opening K15 on the substrate 100 and the orthographic projection center of the corresponding pixel opening K3 on the substrate 100 can be equal to any one of 1 micrometer, 1.1 micrometer, 1.2 micrometer, 1.3 micrometer, 1.4 micrometer, and 1.5 micrometer.

[0137] like Figure 13 As shown, multiple light-emitting units 200 are arranged along a first direction X and a second direction Y. The first direction X and the second direction Y intersect and are all parallel to the direction where the substrate 100 is located. Along the second direction Y, first type units P1 and second type units P2 are alternately arranged. The first type unit P1 includes a first light-emitting unit 210 and a second light-emitting unit 220 alternately arranged along the second direction Y. The second type unit P2 includes a third light-emitting unit 230 spaced apart along the second direction Y. In the same first type of unit P1, the offset direction of the orthogonal projection center of at least one first sub-opening K11 on the substrate 100 relative to the orthogonal projection center of the corresponding pixel opening K3 on the substrate 100 is different from the offset direction of the orthogonal projection center of at least one second sub-opening K12 on the substrate 100 relative to the orthogonal projection center of the corresponding pixel opening K3 on the substrate 100. In at least one second-type unit P2, the orthographic projection centers of the fifth sub-openings K15 corresponding to at least two third light-emitting units 230 on the substrate 100 have different offset directions relative to the orthographic projection centers of the corresponding pixel openings K3 on the substrate 100. In this embodiment, in the same first-type unit P1, the offset direction of the orthographic projection center of at least one first sub-opening K11 on the substrate 100 relative to the orthographic projection center of the corresponding pixel opening K3 on the substrate 100 can be opposite to or intersect with the offset direction of the orthographic projection center of at least one second sub-opening K12 on the substrate 100 relative to the orthographic projection center of the corresponding pixel opening K3 on the substrate 100, as long as the offset directions are different. Similarly, in at least one second-type unit P2, the orthographic projection centers of the fifth sub-openings K15 corresponding to two third light-emitting units 230 on the substrate 100 have different offset directions relative to the orthographic projection centers of the corresponding pixel openings K3 on the substrate 100, as long as the offset directions are different.

[0138] By adopting the above arrangement, the diffraction period can be increased, the original diffraction period can be disrupted, the degree of color separation of primary diffraction spots and the intensity of secondary diffraction spots can be weakened, the color intensity of the central diffraction spot can be reduced, and the number of peripheral diffraction rings can be reduced.

[0139] Optionally, the display panel also includes a plurality of pixel units P, which are arranged along a first direction X and a second direction Y. Each light-emitting unit 200 group includes two second light-emitting units 220, two first light-emitting units 210 and a third light-emitting unit 230. The third light-emitting unit 230 is located inside a first virtual quadrilateral. Two opposite vertices of the first virtual quadrilateral coincide with the centers of the two first light-emitting units 210, and the other two opposite vertices coincide with the centers of the two second light-emitting units 220. Along the second direction Y, the first light-emitting unit 210 and the second light-emitting unit 220 form a first type of unit P1 and are alternately arranged, and the third light-emitting unit 230 is arranged at intervals along the second direction Y to form a second type of unit P2; In this embodiment, along the second direction Y, the first light-emitting unit 210 and the second light-emitting unit 220 are located in the same column to form a first type of unit P1, and each third light-emitting unit 230 is spaced apart along the second direction Y to form a second type of unit P2. Along the first direction X, the first type of unit P1 and the second type of unit P2 are alternately arranged.

[0140] Taking the first light-emitting unit 210 in the first type of unit P1 of the odd-numbered column as an example, along the first direction X, for the first light-emitting units 210 of the first type of unit P1 of the odd-numbered column corresponding to each other, the orthographic projection center of the first sub-opening K11 on the substrate 100 is offset in the opposite direction along the first direction X to the orthographic projection center of the corresponding pixel opening K3 on the substrate 100. For example, when the orthographic projection center of the first sub-opening K11 on the substrate 100 of the first light-emitting unit 210 in the first type of unit P1 of the first column is offset to the left relative to the orthographic projection center of the corresponding pixel opening K3 on the substrate 100, when the orthographic projection center of the first sub-opening K11 on the substrate 100 of the first light-emitting unit 210 in the first type of unit P1 of the third column is offset to the right relative to the orthographic projection center of the corresponding pixel opening K3 on the substrate 100.

[0141] Alternatively, for the second light-emitting unit 220 in the first type unit P1, along the first direction X, for the second light-emitting unit 220 of the two adjacent odd-numbered columns of the first type unit P1, the orthogonal projection center of the second sub-opening K12 on the substrate 100 is opposite to the offset direction of the orthogonal projection center of the corresponding pixel opening K3 on the substrate 100 along the first direction X.

[0142] Along the first direction X, the orthographic projection center of the first sub-opening K11 on the substrate 100 of each first light-emitting unit 210 in the even-numbered column of the first type of unit P1 is offset along the second direction Y relative to the orthographic projection center of the corresponding pixel opening K3 on the substrate 100. Furthermore, along the first direction X, the orthographic projection center of the first sub-opening K11 on the substrate 100 of each first light-emitting unit 210 in two adjacent even-numbered columns of the first type of unit P1 is offset in the opposite direction along the second direction Y relative to the orthographic projection center of the corresponding pixel opening K3 on the substrate 100. For example, when the orthographic projection center of the first sub-opening K11 on the substrate 100 of the first light-emitting unit 210 in the second column of the first type of unit P1 is offset upwards relative to the orthographic projection center of the corresponding pixel opening K3 on the substrate 100, the orthographic projection center of the first sub-opening K11 on the substrate 100 of the first light-emitting unit 210 in the fourth column of the first type of unit P1 is offset downwards relative to the orthographic projection center of the corresponding pixel opening K3 on the substrate 100.

[0143] Along the first direction X, the orthographic projection center of the fifth sub-opening K15 of the third light-emitting unit 230 in the odd-numbered second-type unit P2 on the substrate 100 is offset along the first direction X relative to the orthographic projection center of the corresponding pixel opening K3 on the substrate 100. Furthermore, along the first direction X, the orthographic projection center of the fifth sub-opening K15 of the second-type unit P2 in two adjacent odd-numbered rows on the substrate 100 is offset in the opposite direction along the first direction X relative to the orthographic projection center of the corresponding pixel opening K3 on the substrate 100. Along the first direction X, the orthographic projection center of the fifth sub-opening K15 of the third light-emitting unit 230 in the second type unit P2 of the even-numbered column on the substrate 100 is offset along the second direction Y relative to the orthographic projection center of the corresponding pixel opening K3 on the substrate 100. Along the first direction X, the orthographic projection center of the fifth sub-opening K15 of the second type unit P2 of the two adjacent even-numbered columns on the substrate 100 is offset in the opposite direction along the second direction Y relative to the orthographic projection center of the corresponding pixel opening K3 on the substrate 100.

[0144] By adopting the above arrangement, the diffraction period can be further increased, the original diffraction period can be disrupted, the degree of color separation of primary diffraction spots and the intensity of secondary diffraction spots can be weakened, the color intensity of the central diffraction spot can be reduced, and the number of peripheral diffraction rings can be reduced.

[0145] like Figure 15 As shown, in some optional embodiments, the display panel includes a non-display area NA, a display area AA, and an aperture area TA. The display area AA is at least partially disposed around the aperture area TA, and the non-display area NA is at least partially disposed around the display area AA. Along a direction parallel to the plane of the substrate 100, the edge of the light-blocking structure T is disposed close to the aperture area TA relative to the edge of the first sub-pixel definition layer 610.

[0146] It is understood that in this embodiment, the edge of the light-blocking structure T is closer to the aperture area TA than the edge of the first sub-pixel definition layer 610, in order to ensure the blocking range and avoid the touch trace 520 or other signal lines from becoming visible due to reflection.

[0147] Optionally, the edge of the light-blocking structure T extends to the edge of the aperture area TA to ensure the shielding effect on traces outside the aperture area TA.

[0148] like Figure 15 As shown, optionally, the display panel also includes a first barrier region ZA disposed between the hole region TA and the display region AA. The first barrier region ZA is provided with a barrier portion H, which is disposed between the substrate 100 and the first sub-pixel definition layer 610 and along the direction Z perpendicular to the plane of the substrate. The barrier portion H and the first sub-pixel definition layer 610 partially overlap.

[0149] It should be noted that both the light-blocking structure T and the first sub-pixel definition layer 610 can extend to the first blocking area ZA. The first sub-pixel definition layer 610 can extend above the blocking part H and stop there. The light-blocking structure T can continue to extend relative to the first sub-pixel definition layer 610 in the direction of the aperture area TA.

[0150] like Figure 7 As shown, in some optional embodiments, in the non-display area NA, along a direction parallel to the plane where the substrate 100 is located, the edge of the light-blocking structure T is set away from the edge of the first sub-pixel definition layer 610 from the display area AA.

[0151] It is understandable that both the light-blocking structure T and the first sub-pixel definition layer 610 extend from the display area AA to the non-display area NA. In the non-display area NA, the edge of the light-blocking structure T is set closer to the edge of the display panel than the edge of the first sub-pixel definition layer 610, in order to ensure the light-blocking effect and avoid the problem of reflection at the bezel.

[0152] like Figure 7 As shown, optionally, the light-emitting unit 200 includes a first electrode block, and a first signal line L disposed on the same layer as the first electrode block in the non-display area NA. Along a direction parallel to the plane where the substrate 100 is located, the edge of the touch signal line 501 is disposed away from the edge of the first signal line L from the display area AA.

[0153] The first signal line L and the first electrode block are disposed on the same layer, meaning they are both fabricated using the same process and are located on the same film layer. This effectively simplifies the manufacturing process of the display panel and reduces the structural complexity caused by film layer stacking. Simultaneously, the first signal line L can be electrically connected to the first electrode block to transmit driving signals, enabling precise control of the light-emitting state of the light-emitting unit 200. Both the touch signal line 501 and the first signal line L are located in the non-display area NA, and the edge of the touch signal line 501 is positioned further away from the display area AA than the edge of the first signal line L to avoid mutual interference. Alternatively, the first signal line L can also be electrically connected to the second electrode layer 503.

[0154] like Figure 16 As shown, in some optional embodiments, the first light-transmitting hole K2 and the corresponding second light-transmitting hole K4 form a light-transmitting opening K; the display panel includes a plurality of pixel units P arranged along the first direction X and the second direction Y, and the pixel unit P includes at least one first light-emitting unit 210, at least one second light-emitting unit 220 and at least one third light-emitting unit 230, the first direction X and the second direction Y intersect, and the first direction X and the second direction Y are both parallel to the plane where the substrate 100 is located; at least one pixel unit P includes a light-transmitting opening K.

[0155] It is understood that in this embodiment, the first light-transmitting hole K2 and the second light-transmitting hole K4 are correspondingly set hollow structures, and their sizes and shapes are compatible. They can be designed into various shapes such as circles, rectangles, and polygons according to the functional requirements of the display panel.

[0156] The pixel unit P includes at least one first light-emitting unit 210, at least one second light-emitting unit 220 and at least one third light-emitting unit 230. The three light-emitting units 200 correspond to different colors, so as to realize the full-color display of the pixel unit P.

[0157] At least one pixel unit P is provided with the aforementioned light-transmitting opening K. That is, the light-transmitting opening K does not cover all pixel units P, but is selectively set in some pixel units P according to the functional requirements of the display panel. The position of the light-transmitting opening K is adapted to the internal structure of the pixel unit P, avoiding the light-emitting area of ​​the light-emitting unit 200, ensuring that the normal display function of the pixel unit P is not affected, while realizing its preset light-transmitting function.

[0158] The first light-transmitting hole K2 and the second light-transmitting hole K4 work together to form a light-transmitting opening K, which can accurately realize the light transmission function of a specific area and provide a light channel for other functional components of the display panel (such as optical sensors, ambient light detection modules, etc.). There is no need to open an additional independent light-transmitting structure, which simplifies the structural design of the display panel and reduces the manufacturing difficulty.

[0159] The light-transmitting opening K avoids the light-emitting area of ​​the light-emitting unit 200 within the pixel unit P, preventing the light emitted by the light-emitting unit 200 from leaking through the light-transmitting opening K, thus avoiding affecting the display contrast and color purity. At the same time, it also prevents external light from interfering with the light emission of the light-emitting unit 200 through the light-transmitting opening K, thereby improving display stability.

[0160] like Figure 16 As shown, optionally, the pixel unit P includes a first light-emitting unit 210, a second light-emitting unit 220, and two third light-emitting units 230. The center line connecting the first light-emitting unit 210, the second light-emitting unit 220, and the two third light-emitting units 230 forms a quadrilateral. Along the first direction X, the first light-emitting unit 210 and the second light-emitting unit 220 are spaced apart. Along the second direction Y, the two third light-emitting units 230 are spaced apart. Along the first direction X, the light-transmitting opening K is located between the first light-emitting unit 210 and the second light-emitting unit 220, and the center of the light-transmitting opening K does not overlap with the center of the line connecting the centers of the first light-emitting unit 210 and the second light-emitting unit 220.

[0161] In this embodiment, along the first direction X, the light-transmitting opening K is disposed between the first light-emitting unit 210 and the second light-emitting unit 220, and the center of the light-transmitting opening K and the center of the line connecting the centers of the first light-emitting unit 210 and the second light-emitting unit 220 do not overlap, that is, the light-transmitting opening K is offset relative to the first light-emitting unit 210 and the second light-emitting unit 220.

[0162] Please see Figure 16 Optionally, along the first direction X, the distance between the light-transmitting opening K and the first light-emitting unit 210 is less than the distance b1 between the light-transmitting opening K and the second light-emitting unit 220, that is, along the first direction X, the light-transmitting opening K is set closer to the first light-emitting unit 210.

[0163] Optionally, the distance b1 between the light-transmitting opening K and the second light-emitting unit 220 along the first direction X is greater than the distance b3 between the light-transmitting opening K and the third light-emitting unit 230 along the second direction Y, so that the light-transmitting opening K is biased.

[0164] In some optional embodiments, the light-transmitting openings K are arranged along a first direction X and a second direction Y; along the first direction X and / or the second direction Y, the distance between any two adjacent light-transmitting openings K is the same.

[0165] In this embodiment, multiple light-transmitting openings K are arranged regularly along the first direction X and the second direction Y. The first direction X and the second direction Y intersect, and both the first direction X and the second direction Y are parallel to the plane of the substrate 100. Optionally, the first direction X and the second direction Y are perpendicular to each other, so that the light-transmitting openings K form a regular rectangular array. If the first direction X and the second direction Y are not perpendicular, the light-transmitting openings K are arranged in an oblique array, which can be flexibly adjusted according to the functional requirements of the display panel.

[0166] The distance between any two adjacent light-transmitting openings K remains the same, that is, the adjacent spacing of the light-transmitting openings K in the first direction X is uniform and consistent, and / or the adjacent spacing in the second direction Y is uniform and consistent. Here, "spacing" can refer to the straight-line distance between the centers of two adjacent light-transmitting openings K along the corresponding direction, or the shortest distance between the corresponding edges of two adjacent light-transmitting openings K, which can be determined according to the shape and arrangement requirements of the light-transmitting openings K.

[0167] Optionally, along the first direction X and / or the second direction Y, the distance between two adjacent light-transmitting openings K is greater than the distance between two adjacent first light-emitting units 210, and along the first direction X and / or the second direction Y, the distance between two adjacent light-transmitting openings K is greater than the distance between two adjacent second light-emitting units 220. That is, whether along a single direction of the first direction X or the second direction Y, or both directions simultaneously, the adjacent spacing of the light-transmitting openings K is greater than the adjacent spacing of the first light-emitting units 210 and the adjacent spacing of the second light-emitting units 220, and this spacing relationship is always kept consistent, ensuring that the arrangement of the light-transmitting openings K and the light-emitting units 200 does not interfere with each other and adapts to the overall display structure layout.

[0168] like Figure 16 As shown, optionally, along the first direction X, the light-transmitting opening K and the first light-emitting unit 210 and the second light-emitting unit 220 at least partially overlap, that is, along the first direction X, the light-transmitting opening K can be located on the line connecting the centers of the first light-emitting unit 210 and the second light-emitting unit 220.

[0169] Along the second direction Y, the light-transmitting opening K and the third light-emitting unit 230 at least partially overlap. Along the first direction X, the light-transmitting opening K can be located on the line connecting the centers of two adjacent third light-emitting units 230.

[0170] like Figure 14 As shown, in some optional embodiments, the display panel further includes a support portion PS disposed on the side of the first sub-pixel definition layer 610 away from the substrate 100; the light-transmitting opening K and the support portion PS do not overlap along the direction Z perpendicular to the plane of the substrate.

[0171] In this embodiment, considering that the light-transmitting opening K includes a second light-transmitting hole K4 provided in the first sub-pixel definition layer 610, in order to ensure the stability of the support part PS, the support part PS can be not provided at the position where the second light-transmitting hole K4 is provided, that is, along the direction Z perpendicular to the plane where the substrate is located, the light-transmitting opening K and the support part PS do not overlap.

[0172] Alternatively, if the second light-transmitting hole K4 is not provided in the second sub-pixel definition layer 620, the light-transmitting opening K and the support portion PS can overlap in the direction Z perpendicular to the plane of the substrate.

[0173] Optionally, the orthographic projection of the support portion PS on the substrate 100 is located within the orthographic projection of the pixel unit P on the substrate 100, or between the orthographic projections of adjacent pixel units P on the substrate 100. That is, the support portion PS can be provided correspondingly within the orthographic projection of the pixel unit P on the substrate 100, and the support portion PS can be provided between the orthographic projections of adjacent pixel units P on the substrate 100.

[0174] like Figure 17 As shown, optionally, along the first direction X or the second direction Y, the orthographic projection of a pixel unit P on the substrate 100 is disposed between the orthographic projections of two adjacent support parts PS on the substrate 100. In other words, along the first direction X or the second direction Y, the orthographic projection of a pixel unit P on the substrate 100 is correspondingly disposed between the orthographic projections of two adjacent support parts PS on the substrate 100, so as to reduce the arrangement density of the support parts PS and ensure the structural strength of the display panel.

[0175] Optionally, the support parts PS are arranged in rows along the first direction X, and the support parts PS in adjacent rows along the second direction Y are staggered, and / or, the support parts PS are arranged in columns along the second direction Y, and the support parts PS in adjacent columns along the first direction X are staggered, so as to improve the uniformity of the support parts PS arrangement and avoid dense arrangement, which would affect the structural strength of the display panel.

[0176] Please refer to the figure. In some optional embodiments, the display panel includes a bending area WA and a flat area PA, that is, the display panel is a bendable or foldable display panel.

[0177] Please see Figure 18 as well as Figure 19 The display panel also includes a cover plate 700 disposed on the side of the filter structure 300 away from the substrate 100. The cover plate 700 includes a first cover plate portion 720 located in the bending region WA and a second cover plate portion 710 located in the planar region PA. The thickness of the first cover plate portion 720 is less than the thickness of the second cover plate portion 710.

[0178] By reducing the thickness of the first cover portion 720 located in the bending zone WA, bending stress is reduced, thereby improving the bendability of the cover 700.

[0179] Optionally, in order to make the thickness of the first cover plate portion 720 less than the thickness of the second cover plate portion 710, in the bending area WA, the surface of the cover plate 700 facing the substrate 100 is provided with a first groove KC. The first groove KC includes an inclined surface Q and a bottom surface D connected to the inclined surface Q. The included angle β between the inclined surface Q and the bottom surface D is greater than or equal to 1° and less than or equal to 2°.

[0180] Understandably, since forming the first slot KC requires removing part of the cover plate 700 material, thereby reducing the thickness of the first cover plate portion 720, and the cross-section of the first slot KC can be trapezoidal along the direction Z perpendicular to the plane of the substrate, with the inclined surface Q corresponding to the waist of the trapezoid, the included angle β between the inclined surface Q and the bottom surface D should not be too large, as a large angle would facilitate a smooth transition in thickness. Optionally, the included angle β between the inclined surface Q and the bottom surface D can be equal to 1°, 1.5°, or 2°.

[0181] Please see Figure 20 In some optional embodiments, the display panel further includes a support structure 800 disposed on the side of the substrate 100 away from the filter structure 300. The support structure 800 includes a base layer 810 and at least two sub-layers disposed on the side of the base layer 810 away from the substrate 100.

[0182] The at least two sub-layers include a first sub-layer 820 and a second sub-layer 830. The second sub-layer 830 is located on the side of the first sub-layer 820 away from the base layer 810. In the bending area WA, the first sub-layer 820 is provided with a first opening S1, and the second sub-layer 830 is provided with a second opening S2. The orthographic projection of the second opening S2 on the base layer 810 covers the orthographic projection of the first opening S1 on the base layer 810.

[0183] In this embodiment, the support structure 800 supports and fixes the substrate 100 and the devices thereon. Considering that the support layer located in the bending area WA is subjected to greater stress when bending, a first opening S1 can be provided in the first sub-layer 820 and a second opening S2 can be provided in the second sub-layer 830 to relieve bending stress, avoid stress concentration, and thus prevent the support structure 800 from breaking due to bending, thereby improving its service life.

[0184] The orthographic projection of the second opening S2 on the base layer 810 covers the orthographic projection of the first opening S1 on the base layer 810, that is, the size of the second opening S2 is greater than or equal to the size of the first opening S1.

[0185] Considering that the second sub-layer 830 is located on the side of the first sub-layer 820 away from the base layer 810, the stress deformation of the second sub-layer 830 located on the outside will be greater when the display panel is folded inward. Therefore, the size of the second opening S2 can be increased accordingly to avoid stress concentration.

[0186] Optionally, the projected area of ​​the second opening S2 on the base layer 810 is greater than the projected area of ​​the first opening S1 on the base layer 810.

[0187] Optionally, more sub-layers can be set as needed, and each sub-layer is provided with corresponding openings. Optionally, from the substrate 100 to the base layer 810, the orthogonal projection area of ​​the openings of each sub-layer on the base layer 810 gradually increases.

[0188] For example, the support layer also includes a third sub-layer 840 and a fourth sub-layer 850 sequentially disposed on the side of the second sub-layer 830 away from the base layer 810. The third sub-layer 840 is provided with a third opening S3, and the fourth sub-layer 850 is provided with a fourth opening S4. The orthographic projection area of ​​the fourth opening S4 on the base layer 810 is greater than the orthographic projection area of ​​the third opening S3 on the base layer 810, and the orthographic projection area of ​​the third opening S3 on the base layer 810 is greater than the orthographic projection area of ​​the second opening S2 on the base layer 810.

[0189] Please see Figure 21 In some optional embodiments, the display panel further includes a first light-shielding layer W1 disposed on the side of the light-filtering structure 300 away from the substrate 100. The first light-shielding layer W1 includes a first light-shielding portion W10. The orthographic projection of the first light-shielding portion W10 on the substrate 100 is disposed around at least a portion of the orthographic projection of the light-emitting unit 200 on the substrate 100.

[0190] In this embodiment, the first light-shielding layer W1 can be provided only for a portion of the light-emitting unit 200, so as to limit the light emission range of the light-emitting unit 200 by utilizing the first light-shielding part W10, thereby achieving the privacy function.

[0191] Optionally, the first light-shielding part W10 includes a black matrix material.

[0192] Optionally, the display panel further includes a second light-shielding layer W2, which is disposed on the side of the first light-shielding layer W1 away from the substrate 100. The second light-shielding layer W2 includes a second light-shielding portion W20. The orthographic projection of the second light-shielding portion W20 on the substrate 100 is arranged around at least part of the orthographic projection of the light-emitting unit 200 on the substrate 100. The orthographic projection of the first light-shielding portion W10 on the substrate 100 and the orthographic projection of the second light-shielding portion W20 on the substrate 100 overlap at least partially. The orthographic projection of the light-blocking structure on the substrate 100 covers the orthographic projection of the first light-shielding portion W10 on the substrate 100.

[0193] According to actual privacy protection needs, a second light-shielding layer W2 can be further provided to enhance the privacy protection effect and limit the viewing angle range of the display panel. The orthographic projection of the first light-shielding part W10 on the substrate 100 and the orthographic projection of the second light-shielding part W20 on the substrate 100 at least partially overlap to cooperate with each other.

[0194] In this embodiment, the orthogonal projection of the light-blocking structure on the substrate 100 covers the orthogonal projection of the first light-blocking part W10 on the substrate 100. That is, the size and area of ​​the light-blocking structure are greater than or equal to the size and area of ​​the light-blocking structure. Taking the periphery of the first light-emitting unit 210 as an example, the first edge B1 of the light-blocking structure is arranged around the edge of the first light-emitting unit 210 relative to the first light-blocking part W10, and is close to the center of the first light-emitting unit 210.

[0195] Optionally, the orthographic projection area of ​​the pixel opening K3 corresponding to the first light-emitting unit 210 on the substrate 100 is larger than the orthographic projection area of ​​the pixel opening K3 corresponding to the second light-emitting unit 220 on the substrate 100, and the orthographic projection area of ​​the pixel opening K3 corresponding to the second light-emitting unit 220 on the substrate 100 is larger than the orthographic projection area of ​​the pixel opening K3 corresponding to the third light-emitting unit 230 on the substrate 100. The orthographic projection of the second light-shielding part W20 on the substrate 100 can be arranged around the orthographic projection of the first light-emitting unit 210 on the substrate 100, and the second light-shielding part W20 is not correspondingly arranged on the periphery of the second light-emitting unit 220 and / or the second light-emitting unit 220. This makes the number of light-shielding layers located on the periphery of the first light-emitting unit 210 greater than the number of light-shielding layers on the periphery of the second light-emitting unit 220 and / or the second light-emitting unit 220, thereby improving the privacy protection effect on the first light-emitting unit 210.

[0196] An embodiment of the second aspect of this application provides a display panel, including: a substrate 100, a plurality of light-emitting units 200, and a light-filtering structure 300. Each light-emitting unit 200 is disposed on one side of the substrate 100, and the light-emitting unit 200 includes a plurality of first light-emitting units 210 and a plurality of second light-emitting units 220, wherein the first light-emitting units 210 and the plurality of second light-emitting units 220 emit different colors. The light-filtering structure 300 is disposed on the side of the light-emitting units 200 away from the substrate 100, and the light-filtering structure 300 includes a first light-filtering layer 310, a second light-filtering layer 320, and a third light-filtering layer 330 stacked together. The first light-filtering layer 310 and the second light-filtering layer 320 each include a plurality of filter portions 301 and connecting portions 302 interconnected with each other. At least one filter portion 301 in the first filter layer 310 has its orthographic projection on the substrate 100 overlapping with the orthographic projection of the first light-emitting unit 210 on the substrate 100. Similarly, at least one filter portion 301 in the second filter layer 320 has its orthographic projection on the substrate 100 overlapping with the orthographic projection of the second light-emitting unit 220 on the substrate 100. Along the direction Z perpendicular to the plane of the substrate, the connecting portions 302 in the first filter layer 310 and the connecting portions 302 in the second filter layer 320 are stacked to form a light-blocking structure T. The orthographic projection of the light-blocking structure T on the substrate 100 is spaced apart from the orthographic projection of the light-emitting unit 200 on the substrate 100. Along the direction Z perpendicular to the plane of the substrate, in the light-blocking structure T located between two adjacent light-emitting units 200, the thickness of the connecting portion 302 of the first filter layer 310 is greater than the thickness d2 of the connecting portion 302 of the second filter layer 320.

[0197] The display panel provided in this embodiment of the invention includes a substrate 100, light-emitting units 200, and a light-filtering structure 300. Along a direction Z perpendicular to the plane of the substrate, the connecting portions 302 of the first light-filtering layer 310 and the connecting portions 302 of the second light-filtering layer 320 are stacked to form a light-blocking structure T. The connecting portions 302 of the first light-filtering layer 310 and the connecting portions 302 of the second light-filtering layer 320 can absorb light of different wavelength ranges respectively. Their overlap achieves a light-blocking effect, preventing crosstalk between light-emitting units 200 of different colors and improving the light-emitting effect. Along a direction Z perpendicular to the plane of the substrate, the thickness of the connecting portion 302 of the first light-filtering layer 310 is greater than the thickness d2 of the connecting portion 302 of the second light-filtering layer 320. Through the inventors' research and experiments, it has been found that using the above-mentioned thickness limitation can effectively improve the light-blocking performance of the connecting portion 302 of the first light-filtering layer 310, preventing light leakage due to insufficient thickness, and thus suppressing color crosstalk between different light-emitting units 200. The layered light-blocking structure T design of the connecting part 302 of the filter structure 300 ensures that the connecting part 302 of the first filter layer 310 can stably play a light-blocking role, ensuring the stability and reliability of the overall light-blocking structure T and improving the performance of the display panel.

[0198] Optionally, based on the same first light-emitting unit 210, the second filter layer 320 includes a first sub-opening K11, and the third filter layer 330 includes a third sub-opening K13. The orthographic projection of the first sub-opening K11 on the substrate 100 covers the orthographic projection of the first light-emitting unit 210 on the substrate 100, and the orthographic projection of the third sub-opening K13 on the substrate 100 covers the orthographic projection of the first light-emitting unit 210 on the substrate 100. The orthographic projection of the connecting portion 302 of the second filter layer 320 on the substrate 100 includes a first edge B1 corresponding to the formation of the first sub-opening K11, and the orthographic projection of the connecting portion 302 of the third filter layer 330 on the substrate 100 includes a second edge B2 corresponding to the formation of the third sub-opening K13. The first edge B1 is disposed close to the orthographic projection of the first light-emitting unit 210 on the substrate 100 relative to the second edge B2.

[0199] In this embodiment, the first edge B1 is positioned relative to the second edge B2, close to the orthogonal projection of the first light-emitting unit 210 onto the substrate 100. This ensures the overlap area of ​​the third filter layer 330 and the second filter layer 320 along the direction Z perpendicular to the plane of the substrate, thereby improving the light-shielding effect. Simultaneously, the light-blocking structure T also blocks the traces located on the side of the connecting portion 302 facing the substrate 100, preventing the traces from becoming visible, ensuring the display effect of the display panel, and improving the performance of the display panel.

[0200] Since the first edge B1 is positioned closer to the orthogonal projection of the first light-emitting unit 210 on the substrate 100 than the second edge B2, the orthogonal projection area of ​​the first sub-opening K11 on the substrate 100 is smaller than the orthogonal projection area of ​​the third sub-opening K13 on the substrate 100.

[0201] like Figures 3c to 5 As shown, optionally, based on the same second light-emitting unit 220, the first filter layer 310 includes a second sub-opening K12, and the third filter layer 330 includes a fourth sub-opening K14. The orthographic projection of the second sub-opening K12 on the substrate 100 covers the orthographic projection of the second light-emitting unit 220 on the substrate 100, and the orthographic projection of the fourth sub-opening K14 on the substrate 100 covers the orthographic projection of the second light-emitting unit 220 on the substrate 100. The orthographic projection of the connecting portion 302 of the first filter layer 310 on the substrate 100 includes a third edge B3 corresponding to the formation of the second sub-opening K12, and the orthographic projection of the connecting portion 302 of the third filter layer 330 on the substrate 100 includes a fourth edge B4 corresponding to the formation of the fourth sub-opening K14. The third edge B3 is disposed close to the orthographic projection of the second light-emitting unit 220 on the substrate 100 relative to the fourth edge B4. Based on the same third light-emitting unit 230, the first filter layer 310 includes a fifth sub-opening K15, and the second filter layer 320 includes a sixth sub-opening K16. The orthographic projection of the fifth sub-opening K15 on the substrate 100 covers the orthographic projection of the third light-emitting unit 230 on the substrate 100, and the orthographic projection of the sixth sub-opening K16 on the substrate 100 covers the orthographic projection of the third light-emitting unit 230 on the substrate 100. The orthographic projection of the connecting portion 302 of the first filter layer 310 on the substrate 100 includes a fifth edge B5 corresponding to the formation of the fifth sub-opening K15, and the orthographic projection of the connecting portion 302 of the second filter layer 320 on the substrate 100 includes a sixth edge B6 corresponding to the formation of the sixth sub-opening K16. The fifth edge B5 is disposed close to the orthographic projection of the third light-emitting unit 230 on the substrate 100 relative to the sixth edge B6.

[0202] In this embodiment, for the peripheral area of ​​the second light-emitting unit 220, the third edge B3 is positioned closer to the orthogonal projection of the second light-emitting unit 220 onto the substrate 100 relative to the fourth edge B4; that is, the third edge B3 is positioned closer to the second light-emitting unit 220 relative to the fourth edge B4. The light-shielding edge (third edge B3) of the connection portion 302 of the first filter layer 310 is located on the inner side, and the light-shielding edge (fourth edge B4) of the connection portion 302 of the third filter layer 330 is located on the outer side, consistent with the light-shielding design around the first light-emitting unit 210, thereby achieving precise blocking of light around the second light-emitting unit 220.

[0203] Meanwhile, a similar light-shielding design can also be adopted for the surrounding area of ​​the third light-emitting unit 230, that is, the fifth edge B5 is set close to the orthographic projection of the third light-emitting unit 230 on the substrate 100 relative to the sixth edge B6, so as to achieve precise blocking of the light around the third light-emitting unit 230 and avoid light leakage.

[0204] It should be noted that the above-mentioned light-shielding edge settings around the second light-emitting unit 220 and the third light-emitting unit 230 can be used individually or both at the same time. The specific choice can be made according to the actual structure of the display panel and the display requirements.

[0205] Since the third edge B3 is positioned closer to the orthographic projection of the second light-emitting unit 220 on the substrate 100 than the fourth edge B4, and the fifth edge B5 is positioned closer to the orthographic projection of the third light-emitting unit 230 on the substrate 100 than the sixth edge B6, correspondingly, the orthographic projection area of ​​the second sub-opening K12 on the substrate 100 is smaller than the orthographic projection area of ​​the fourth sub-opening K14 on the substrate 100. The orthographic projection area of ​​the fifth sub-opening K15 on the substrate 100 is smaller than the orthographic projection area of ​​the sixth sub-opening K16 on the substrate 100.

[0206] like Figures 4 to 5As shown, in some optional embodiments, along the direction Z perpendicular to the plane of the substrate, based on the second light-emitting unit 220, the connecting portion 302 in the first filter layer 310 includes a second side surface C2 corresponding to the formation of the second sub-opening K12; based on the third light-emitting unit 230, the connecting portion 302 in the first filter layer 310 includes a third side surface C3 forming the fifth sub-opening K15; in the cross section passing through the adjacent second light-emitting unit 220 and third light-emitting unit 230, the second side surface C2 includes a curved second edge line B2, and the third side surface C3 includes a curved fourth edge line B4. The curvature of the second edge line B2 is a second curvature, and the curvature of the fourth edge line B4 is a fourth curvature. The second curvature and the fourth curvature are different.

[0207] Curvature is a geometric parameter characterizing the degree of local bending of a curve or surface, used to quantify the severity of bending on a structural surface or contour curve. At the same location on a curve / surface, curvature and radius of curvature are inversely proportional. The magnitude of curvature corresponds to the following bending characteristics: the larger the curvature value, the more severe the bending and the sharper the contour bending; the smaller the curvature value, the gentler the bending.

[0208] It should be noted that, in this embodiment, the second side C2 and the third side C3 of the connecting portion 302 of the first filter layer 310 can refer to the side that is parallel to and intersects with the substrate 100. For example, when a touch layer 500 is provided between the first filter layer 310 and the substrate 100, the second side C2 and the third side C3 can refer to the portion of the connecting portion 302 of the first filter layer 310 located in the peripheral area of ​​the second light-emitting unit 220 and the third light-emitting unit 230 that is in contact with the surface of the touch layer 500 on the side away from the substrate 100. For the second light-emitting unit 220 and the third light-emitting unit 230, the second curvature and the third side C3 are different to reduce the manufacturing difficulty, specifically adapt to the different sizes and arrangement spacing of the second light-emitting unit 220 and the third light-emitting unit 230, without the need to use a side structure with a uniform curvature, thereby improving the adaptability of the connecting portion 302 of the first filter layer 310 to the overall display structure and reducing the difficulty of structural design.

[0209] Meanwhile, in the cross-section passing through the adjacent second light-emitting unit 220 and third light-emitting unit 230, the second side surface C2 includes a curved second edge line B2, and the third side surface C3 includes a curved fourth edge line B4. This increases the contact area between the connection portion 302 of the first filter layer 310 and the surrounding area of ​​the light-emitting unit 200, improving the sealing and comprehensiveness of light shielding. It effectively blocks the light from the second light-emitting unit 220 and the third light-emitting unit 230 from leaking to the surrounding area, thereby suppressing color crosstalk and ensuring the color purity of the displayed image. Compared with the angular structure, the curved surface design can reduce edge damage and chipping problems that occur during the fabrication process of the connection portion 302 of the first filter layer 310, improving the fabrication yield, while enhancing its mechanical structural stability and extending its service life.

[0210] Optionally, the maximum value of the second curvature is greater than the maximum value of the fourth curvature. The second side C2 is positioned around the second light-emitting unit 220, and the third side C3 is positioned around the third light-emitting unit 230. By making the maximum value of the second curvature greater than the maximum value of the fourth curvature, the second side C2 can be made steeper, improving the light-blocking effect on the second light-emitting unit 220. At the same time, the third side C3 is made relatively flat, reducing the space occupied by the third side C3 while ensuring the light-blocking effect on the third light-emitting unit 230. This reasonably adapts to the arrangement requirements of the third light-emitting unit 230, balancing the light-blocking effect and structural compactness, and further optimizing the space utilization of the overall filter structure 300.

[0211] Optionally, along the direction Z perpendicular to the plane of the substrate, the curvature of the edge line corresponding to the surface of at least one filter portion 301 in the first filter layer 310 facing away from the substrate 100 is less than the second curvature and the fourth curvature. In this embodiment, the surface of the filter portion 301 of the first filter layer 310 facing away from the substrate 100 can be either a plane or a curved surface. The filter portion 301 of the first filter layer 310 is used to allow light to pass through to achieve the corresponding color display. Its surface facing away from the substrate 100 has a smaller curvature (smoother), which can reduce the refraction distortion of light when passing through the surface, ensure the stability and consistency of light emission, and improve the uniformity of the displayed color.

[0212] like Figure 3c As shown, along the direction Z perpendicular to the plane of the substrate, based on the first light-emitting unit 210, the connecting portion 302 in the second filter layer 320 includes a first side surface C1 corresponding to the formation of the first sub-opening K11, and the connecting portion 302 in the third filter layer 330 includes a fourth side surface C4 corresponding to the formation of the third sub-opening K13; wherein, in the cross section passing through the first light-emitting unit 210, the first side surface C1 includes a curved first edge line B1, and the fourth side surface C4 includes a curved third edge line B3. The curvature of the first edge line B1 is a first curvature, and the curvature of the third edge line B3 is a third curvature. The first curvature and the third curvature are different.

[0213] It should be noted that the first side C1 and the fourth side C4 are both arranged around the first unit. The first side C1 can refer to the interface between the connecting part 302 of the second filter layer 320 and the surface of the first filter layer 310 facing away from the substrate 100 in the peripheral area of ​​the first light-emitting unit 210. The fourth side C4 can refer to the interface between the connecting part 302 of the third filter layer 330 and the surface of the second filter layer 320 facing away from the substrate 100 in the peripheral area of ​​the first light-emitting unit 210.

[0214] In this embodiment, the first curvature and the third curvature are different, meaning that the steepness and curvature of the first side C1 and the fourth side C4 differ. This differentiated surface design, combined with the size and edge contour of the first light-emitting unit 210 and the stacking positions of the second filter layer 320 and the third filter layer 330, is specifically optimized to ensure that the first side C1 and the fourth side C4 can accurately fit the shape of the first light-emitting unit 210 and meet the light-shielding requirements of the overall filter structure 300.

[0215] Optionally, the maximum value of the first curvature is greater than the maximum value of the third curvature, which can make the surface of the first side C1 steeper and improve the blocking effect on the light of the first light-emitting unit 210.

[0216] Optionally, the first curvature and the second curvature are different. This means that the steepness and curvature of the second side C2 and the first side C1 differ. This differentiated surface design, combined with the shape, size, edge contours of the first light-emitting unit 210 and the second light-emitting unit 220, as well as the stacking position of the first filter layer 310 and the second filter layer 320, is specifically optimized to ensure that the second side C2 and the first side C1 can accurately adapt to the shape of the first light-emitting unit 210 and the second light-emitting unit 220, meet the light-shielding requirements of the overall filter structure 300, and improve the performance of the display panel.

[0217] Any embodiment of the display panel provided in the first aspect above can be applied to the display panel provided in the second aspect.

[0218] An embodiment of the third aspect of this application provides a display panel, including: a substrate 100; a plurality of light-emitting units 200, the plurality of light-emitting units 200 being disposed on one side of the substrate 100, the plurality of light-emitting units 200 including a plurality of first light-emitting units 210, a plurality of second light-emitting units 220 and a plurality of third light-emitting units 230, wherein any two of the first light-emitting units 210, the second light-emitting units 220 and the third light-emitting units 230 emit different colors; and a light-filtering structure 300, disposed on the side of the light-emitting units 200 away from the substrate 100, the light-filtering structure 300 including a first light-filtering layer 310, a second light-filtering layer 320 and a third light-filtering layer 330. The first filter layer 310, the second filter layer 320, and the third filter layer 330 all include a filter portion 301 and a connecting portion 302. The orthographic projection of at least one filter portion 301 in the first filter layer 310 onto the substrate 100 overlaps with the orthographic projection of the first light-emitting unit 220 onto the substrate 100. The orthographic projection of at least one filter portion 301 in the second filter layer 320 onto the substrate 100 overlaps with the orthographic projection of the second light-emitting unit 220 onto the substrate 100. The orthographic projection of at least one filter portion 301 in the third filter layer 330 onto the substrate 100 overlaps with the orthographic projection of the first light-emitting unit 220 onto the substrate 100. The orthographic projection on 00 and the orthographic projection of the third light-emitting unit 230 on the substrate 100 overlap; based on the same second light-emitting unit 220, the first filter layer 310 includes a second sub-opening K12, and the third filter layer 330 includes a fourth sub-opening K14. The orthographic projection of the second sub-opening K12 on the substrate 100 covers the orthographic projection of the second light-emitting unit 220 on the substrate 100, and the orthographic projection of the fourth sub-opening K14 on the substrate 100 covers the orthographic projection of the second light-emitting unit 220 on the substrate 100; along the direction Z perpendicular to the plane of the substrate, based on the second light-emitting unit 220, the first The connecting portion 302 in the filter layer 310 includes a second side surface C2 corresponding to the second sub-opening K12. Based on the third light-emitting unit 230, the connecting portion 302 in the first filter layer 310 includes a third side surface C3 forming a fifth sub-opening K15. In the cross section passing through the adjacent second light-emitting unit 220 and third light-emitting unit 230, the second side surface C2 includes a curved second edge line B2, and the third side surface C3 includes a curved fourth edge line B4. The curvature of the second edge line B2 is a second curvature, and the curvature of the fourth edge line B4 is a fourth curvature. The second curvature and the fourth curvature are different.

[0219] Optionally, in the light-blocking structure T located between two adjacent light-emitting units 200 along the direction Z perpendicular to the plane of the substrate, the thickness of the connection portion 302 of the first filter layer 310 is greater than the thickness d2 of the connection portion 302 of the second filter layer 320.

[0220] Through research and experimentation, the inventors discovered that by adopting the aforementioned thickness limitation, the light-shielding performance of the connecting portion 302 of the first filter layer 310 can be effectively improved, avoiding light leakage due to insufficient thickness, and thus suppressing color crosstalk between different light-emitting units 200. The layered light-blocking structure T design adapted to the connecting portion 302 of the filter structure 300 ensures that the connecting portion 302 of the first filter layer 310 can stably perform its light-shielding function, guaranteeing the stability and reliability of the overall light-blocking structure T and improving the performance of the display panel.

[0221] Optionally, in the light-blocking structure T located between two adjacent light-emitting units 200 along the direction Z perpendicular to the plane of the substrate, the thickness of the connection portion 302 of the first filter layer 310 is greater than the thickness d2 of the connection portion 302 of the second filter layer 320.

[0222] Through research and experimentation, the inventors discovered that by adopting the aforementioned thickness limitation, the light-shielding performance of the connecting portion 302 of the first filter layer 310 can be effectively improved, avoiding light leakage due to insufficient thickness, and thus suppressing color crosstalk between different light-emitting units 200. The layered light-blocking structure T design adapted to the connecting portion 302 of the filter structure 300 ensures that the connecting portion 302 of the first filter layer 310 can stably perform its light-shielding function, guaranteeing the stability and reliability of the overall light-blocking structure T and improving the performance of the display panel.

[0223] Optionally, in the light-blocking structure T located between two adjacent light-emitting units 200 along the direction Z perpendicular to the plane of the substrate, the thickness of the connecting portion 302 in the first filter layer 310 is greater than the thickness d3 of the connecting portion 302 in the third filter layer 330.

[0224] In the cross-section passing through the adjacent second light-emitting unit 220 and third light-emitting unit 230, the second side surface C2 includes a curved second edge line B2, and the third side surface C3 includes a curved fourth edge line B4. This increases the contact area between the connection portion 302 of the first filter layer 310 and the surrounding area of ​​the light-emitting unit 200, improving the sealing and comprehensiveness of light shielding. It effectively blocks the light from the second light-emitting unit 220 and the third light-emitting unit 230 from leaking to the surrounding area, thereby suppressing color crosstalk and ensuring the color purity of the displayed image. Compared with the angular structure, the curved surface design can reduce edge damage and chipping problems that occur during the fabrication process of the connection portion 302 of the first filter layer 310, improving the fabrication yield, while enhancing its mechanical structural stability and extending its service life.

[0225] Optionally, the maximum value of the second curvature is greater than the maximum value of the fourth curvature. The second side C2 is positioned around the second light-emitting unit 220, and the third side C3 is positioned around the third light-emitting unit 230. By making the maximum value of the second curvature greater than the maximum value of the fourth curvature, the second side C2 can be made steeper, improving the light-blocking effect on the second light-emitting unit 220. At the same time, the third side C3 is made relatively flat, reducing the space occupied by the third side C3 while ensuring the light-blocking effect on the third light-emitting unit 230. This reasonably adapts to the arrangement requirements of the third light-emitting unit 230, balancing the light-blocking effect and structural compactness, and further optimizing the space utilization of the overall filter structure 300.

[0226] like Figure 3c As shown, along the direction Z perpendicular to the plane of the substrate, based on the first light-emitting unit 210, the connecting portion 302 in the second filter layer 320 includes a first side surface C1 corresponding to the formation of the first sub-opening K11, and the connecting portion 302 in the third filter layer 330 includes a fourth side surface C4 corresponding to the formation of the third sub-opening K13; wherein, in the cross section passing through the first light-emitting unit 210, the first side surface C1 includes a curved first edge line B1, and the fourth side surface C4 includes a curved third edge line B3. The curvature of the first edge line B1 is a first curvature, and the curvature of the third edge line B3 is a third curvature. The first curvature and the third curvature are different.

[0227] It should be noted that the first side C1 and the fourth side C4 are both arranged around the first unit. The first side C1 can refer to the interface between the connecting part 302 of the second filter layer 320 and the surface of the first filter layer 310 facing away from the substrate 100 in the peripheral area of ​​the first light-emitting unit 210. The fourth side C4 can refer to the interface between the connecting part 302 of the third filter layer 330 and the surface of the second filter layer 320 facing away from the substrate 100 in the peripheral area of ​​the first light-emitting unit 210.

[0228] In this embodiment, the first curvature and the third curvature are different, meaning that the steepness and curvature of the first side C1 and the fourth side C4 differ. This differentiated surface design, combined with the size and edge contour of the first light-emitting unit 210 and the stacking positions of the second filter layer 320 and the third filter layer 330, is specifically optimized to ensure that the first side C1 and the fourth side C4 can accurately fit the shape of the first light-emitting unit 210 and meet the light-shielding requirements of the overall filter structure 300.

[0229] Optionally, the maximum value of the first curvature is greater than the maximum value of the third curvature, which can make the surface of the first side C1 steeper and improve the blocking effect on the light of the first light-emitting unit 210.

[0230] Optionally, the first curvature and the second curvature are different. This means that the steepness and curvature of the second side C2 and the first side C1 differ. This differentiated surface design, combined with the shape, size, edge contours of the first light-emitting unit 210 and the second light-emitting unit 220, as well as the stacking position of the first filter layer 310 and the second filter layer 320, is specifically optimized to ensure that the second side C2 and the first side C1 can accurately adapt to the shape of the first light-emitting unit 210 and the second light-emitting unit 220, meet the light-shielding requirements of the overall filter structure 300, and improve the performance of the display panel.

[0231] Any embodiment of the display panel provided in the first aspect above can be applied to the display panel provided in the third aspect.

[0232] like Figures 2 to 5As shown, an embodiment of the fourth aspect of this application provides a display panel, including: a substrate 100; a plurality of light-emitting units 200 disposed on one side of the substrate 100, the plurality of light-emitting units 200 including a plurality of first light-emitting units 210, a plurality of second light-emitting units 220 and a plurality of third light-emitting units 230, wherein any two of the first light-emitting units 210, the second light-emitting units 220 and the third light-emitting units 230 emit different colors; and a light-filtering structure 300 disposed on the side of the light-emitting units 200 away from the substrate 100, the light-filtering structure 300 including a first light-filtering layer 310. The first filter layer 310, the second filter layer 320, and the third filter layer 330 all include a filter portion 301 and a connecting portion 302. The orthographic projection of at least one filter portion 301 in the first filter layer 310 onto the substrate 100 overlaps with the orthographic projection of the first light-emitting unit 220 onto the substrate 100. The orthographic projection of at least one filter portion 301 in the second filter layer 320 onto the substrate 100 overlaps with the orthographic projection of the second light-emitting unit 220 onto the substrate 100. The orthographic projection of at least one filter portion 301 in the third filter layer 330 onto the substrate 100 overlaps with the orthographic projection of the first light-emitting unit 220 onto the substrate 100. The orthographic projection on substrate 100 and the orthographic projection on substrate 100 of the third light-emitting unit 230 overlap; based on the same first light-emitting unit 210, the second filter layer 320 includes a first sub-opening K11, and the third filter layer 330 includes a third sub-opening K13. The orthographic projection of the first sub-opening K11 on substrate 100 covers the orthographic projection of the first light-emitting unit 210 on substrate 100, and the orthographic projection of the third sub-opening K13 on substrate 100 covers the orthographic projection of the first light-emitting unit 210 on substrate 100; along the direction Z perpendicular to the plane of the substrate, based on the first light-emitting unit 210... 10. The connecting portion 302 in the second filter layer 320 includes a first side surface C1 corresponding to the formation of the first sub-opening K11, and the connecting portion 302 in the third filter layer 330 includes a fourth side surface C4 corresponding to the formation of the third sub-opening K13. In the cross section passing through the first light-emitting unit 210 in the direction Z perpendicular to the plane of the substrate, the first side surface C1 includes a curved first edge B1 line, and the fourth side surface C4 includes a curved third edge B3 line. The curvature of the first edge B1 line is a first curvature, and the curvature of the third edge B3 line is a third curvature. The first curvature and the third curvature are different.

[0233] The display panel provided in this embodiment of the invention includes a substrate 100, light-emitting units 200, and a light-filtering structure 300. Light-filtering portions 301 are respectively disposed corresponding to light-emitting units 200 of different emitting colors to achieve light filtering. Along the direction Z perpendicular to the plane of the substrate, the connecting portions 302 of the first light-filtering layer 310, the connecting portions 302 of the second light-filtering layer 320, and the connecting portions 302 of the third light-filtering layer 330 are stacked to form a light-blocking structure T. The connecting portions 302 of the first light-filtering layer 310, the connecting portions 302 of the second light-filtering layer 320, and the connecting portions 302 of the third light-filtering layer 330 can absorb light of different wavelength ranges respectively. The three overlap to achieve a light-blocking effect, avoiding crosstalk between light-emitting units 200 of different emitting colors and improving the light-emitting effect. The first curvature and the third curvature are different, that is, the steepness and curvature of the first side surface C1 and the fourth side surface C4 are different. This differentiated curved surface design combines the size and edge contour of the first light-emitting unit 210 with the stacking positions of the second filter layer 320 and the third filter layer 330, and is specifically optimized to ensure that the first side C1 and the fourth side C4 can accurately fit the shape of the first light-emitting unit 210 and meet the light-shielding requirements of the overall filter structure 300, thereby improving the performance of the display panel.

[0234] Optionally, in the light-blocking structure T located between two adjacent light-emitting units 200 along the direction Z perpendicular to the plane of the substrate, the thickness of the connection portion 302 of the first filter layer 310 is greater than the thickness d2 of the connection portion 302 of the second filter layer 320.

[0235] Through research and experimentation, the inventors discovered that by adopting the aforementioned thickness limitation, the light-shielding performance of the connecting portion 302 of the first filter layer 310 can be effectively improved, avoiding light leakage due to insufficient thickness, and thus suppressing color crosstalk between different light-emitting units 200. The layered light-blocking structure T design adapted to the connecting portion 302 of the filter structure 300 ensures that the connecting portion 302 of the first filter layer 310 can stably perform its light-shielding function, guaranteeing the stability and reliability of the overall light-blocking structure T and improving the performance of the display panel.

[0236] Any embodiment of the display panel provided in the first aspect above can be applied to the display panel provided in the fourth aspect.

[0237] This invention also provides a display device, including a display panel as described in any of the above embodiments.

[0238] Since the display device provided in this application includes the display panel of any of the above embodiments, the display device provided in this application has the beneficial effects of the display panel of any of the above embodiments, which will not be repeated here.

[0239] The display devices in this application include, but are not limited to, mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, control consoles, and other devices with display functions.

[0240] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0241] The above embodiments merely illustrate several implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display panel, characterized in that, include: substrate; Multiple light-emitting units are disposed on one side of the substrate. The multiple light-emitting units include multiple first light-emitting units and multiple second light-emitting units, and the first light-emitting units and the second light-emitting units emit different colors. A light filtering structure is disposed on the side of the light-emitting unit away from the substrate. The light filtering structure includes a first light filtering layer and a second light filtering layer stacked together. Both the first light filtering layer and the second light filtering layer include a plurality of light filtering parts and a connecting part connecting the plurality of light filtering parts. The orthographic projection of at least one light filtering part in the first light filtering layer on the substrate overlaps with the orthographic projection of the first light-emitting unit on the substrate. The orthographic projection of at least one light filtering part in the second light filtering layer on the substrate overlaps with the orthographic projection of the second light-emitting unit on the substrate. Along a direction perpendicular to the plane of the substrate, the connecting portions in the first filter layer and the connecting portions in the second filter layer are stacked to form a light-blocking structure, and the orthogonal projection of the light-emitting unit on the substrate is spaced apart from the orthogonal projection of the light-emitting unit on the substrate; Based on an adjacent first light-emitting unit and a second light-emitting unit, the second filter layer includes a first sub-opening and a first side surface corresponding to the first sub-opening. The orthographic projection of the first sub-opening on the substrate covers the orthographic projection of the first light-emitting unit on the substrate. The first filter layer includes a second sub-opening and a second side surface corresponding to the second sub-opening. The orthographic projection of the second sub-opening on the substrate covers the orthographic projection of the second light-emitting unit on the substrate. In a cross section passing through the first light-emitting unit in a direction perpendicular to the plane of the substrate, the first side surface includes a curved first edge line. In a cross section passing through the second light-emitting unit in a direction perpendicular to the plane of the substrate, the second side surface includes a curved second edge line. The curvature of the first edge line is a first curvature, and the curvature of the second edge line is a second curvature. The first curvature and the second curvature are different.

2. The display panel according to claim 1, characterized in that, In the light-blocking structure located between two adjacent light-emitting units along a direction perpendicular to the plane of the substrate, the thickness of the connecting portion of the first filter layer is greater than the thickness of the connecting portion of the second filter layer.

3. The display panel according to claim 1, characterized in that, The display panel further includes a plurality of third light-emitting units, and the filter structure further includes a third filter layer stacked with the first filter layer and the second filter layer. The third filter layer includes a plurality of filter portions and a connecting portion connecting the plurality of filter portions. The orthographic projection of at least one filter portion in the third filter layer on the substrate and the orthographic projection of the third light-emitting unit on the substrate overlap. The connecting portions in the first filter layer, the second filter layer, and the third filter layer are stacked along a direction perpendicular to the plane of the substrate to form the light-blocking structure. Based on the same first light-emitting unit, the third filter layer includes a third sub-opening, the orthogonal projection of the third sub-opening on the substrate covering the orthogonal projection of the first light-emitting unit on the substrate; Along a direction perpendicular to the plane of the substrate, based on the first light-emitting unit, the connecting portion in the third filter layer includes a fourth side surface corresponding to the formation of the third sub-opening; In a direction perpendicular to the plane of the substrate, in a cross section passing through the first light-emitting unit, the fourth side surface includes a curved third edge line, the curvature of which is a third curvature, and the first curvature and the third curvature are different.

4. The display panel according to claim 3, characterized in that, In the light-blocking structure located between two adjacent light-emitting units along a direction perpendicular to the plane of the substrate, the thickness of the connecting portion of the first filter layer is greater than the thickness of the connecting portion in the third filter layer.

5. The display panel according to claim 3, characterized in that, The third filter layer is located on the side of the second filter layer that is away from the substrate; The orthographic projection of the connecting portion of the second filter layer on the substrate includes a first edge corresponding to the formation of the first sub-opening, and the orthographic projection of the connecting portion of the third filter layer on the substrate includes a second edge corresponding to the formation of the third sub-opening. The first edge is disposed close to the orthographic projection of the first light-emitting unit on the substrate relative to the second edge.

6. The display panel according to claim 3, characterized in that, Based on the same second light-emitting unit, the first filter layer includes a second sub-opening, and the third filter layer includes a fourth sub-opening. The orthographic projection of the second sub-opening on the substrate covers the orthographic projection of the second light-emitting unit on the substrate, and the orthographic projection of the fourth sub-opening on the substrate covers the orthographic projection of the second light-emitting unit on the substrate. The orthographic projection of the connecting portion of the first filter layer on the substrate includes a third edge corresponding to the formation of the second sub-opening, and the orthographic projection of the connecting portion of the third filter layer on the substrate includes a fourth edge corresponding to the formation of the fourth sub-opening. The third edge is disposed close to the orthographic projection of the second light-emitting unit on the substrate relative to the fourth edge. And / or, based on the same third light-emitting unit, the first filter layer includes a fifth sub-opening, the second filter layer includes a sixth sub-opening, the orthographic projection of the fifth sub-opening on the substrate covers the orthographic projection of the third light-emitting unit on the substrate, the orthographic projection of the sixth sub-opening on the substrate covers the orthographic projection of the third light-emitting unit on the substrate, the orthographic projection of the connecting portion of the first filter layer on the substrate includes a fifth edge corresponding to the formation of the fifth sub-opening, the orthographic projection of the connecting portion of the second filter layer on the substrate includes a sixth edge corresponding to the formation of the sixth sub-opening, and the fifth edge is disposed close to the orthographic projection of the third light-emitting unit on the substrate relative to the sixth edge.

7. The display panel according to claim 6, characterized in that, Along a direction perpendicular to the plane of the substrate, based on a second light-emitting unit, the connecting portion in the first filter layer includes a second side surface corresponding to the formation of the second sub-opening; based on a third light-emitting unit, the connecting portion in the first filter layer includes a third side surface corresponding to the formation of the fifth sub-opening. In a direction perpendicular to the plane of the substrate, in a cross section passing through adjacent second and third light-emitting units, the second side includes a curved second edge line, and the third side includes a curved fourth edge line. The curvature of the second edge line is a second curvature, and the curvature of the fourth edge line is a fourth curvature. The second curvature and the fourth curvature are different.

8. The display panel according to claim 7, characterized in that, Along a direction perpendicular to the plane of the substrate, based on the second light-emitting unit, the connecting portion in the third filter layer includes a fifth side surface corresponding to the formation of the fourth sub-opening. In the cross-section passing through the second light-emitting unit, the fifth side surface includes a curved fifth edge line, the curvature of the fifth edge line is a fifth curvature, and the maximum value of the fifth curvature is less than the maximum value of the first curvature. Along a direction perpendicular to the plane of the substrate, based on the third light-emitting unit, the connecting portion in the second filter layer includes a sixth side surface corresponding to the formation of the sixth sub-opening. In the cross-section passing through the third light-emitting unit, the sixth side surface includes a curved sixth edge line, the curvature of the sixth edge line is a sixth curvature, and the maximum value of the third curvature is greater than the maximum value of the sixth curvature.

9. The display panel according to claim 8, characterized in that, Along a direction parallel to the plane where the substrate is located, based on the same first light-emitting unit, the distance between the boundary of the orthographic projection of the first side surface on the substrate and the boundary of the orthographic projection of the fourth side surface on the substrate is the first distance; Based on the same third light-emitting unit, the distance between the boundary of the orthographic projection of the third side surface on the substrate and the boundary of the orthographic projection of the sixth side surface on the substrate is the second distance; Based on the same second light-emitting unit, the distance between the boundary of the orthographic projection of the second side on the substrate and the boundary of the orthographic projection of the fifth side on the substrate is the third distance; The first distance, the second distance, and the third distance are not equal to any two of them.

10. The display panel according to claim 1, characterized in that, The display panel includes a non-display area and a display area, wherein the non-display area is at least partially disposed around the display area, and the display panel further includes a touch layer disposed between the light-emitting unit and the filter structure; In the display area, the touch layer includes touch traces, and the orthographic projection of the light-blocking structure on the substrate covers the orthographic projection of the touch traces on the substrate; And / or, In the non-display area, the touch layer includes touch signal lines, and the orthographic projection of the light-blocking structure on the substrate covers the orthographic projection of the touch signal lines on the substrate.

11. The display panel according to claim 7, characterized in that, The light-blocking structure includes multiple first light-transmitting holes; The orthographic projection of the light-emitting unit on the substrate and the orthographic projection of the first light-transmitting hole on the substrate are arranged alternately.

12. The display panel according to claim 11, characterized in that, It also includes a pixel definition layer, which is disposed on one side of the substrate and includes a plurality of pixel openings and a plurality of second light-transmitting holes; At least a portion of one of the light-emitting units is located within one of the pixel openings, and the second light-transmitting hole and the corresponding first light-transmitting hole at least partially overlap in a direction perpendicular to the plane of the substrate.

13. The display panel according to claim 12, characterized in that, Along a direction away from the substrate, the pixel definition layer includes a first sub-pixel definition layer and a second sub-pixel definition layer stacked together. The first sub-pixel definition layer defines a plurality of pixel openings and a plurality of second light-transmitting holes. The first sub-pixel definition layer includes a light-shielding material.

14. The display panel according to claim 13, characterized in that, The orthographic projection of the second light-transmitting hole on the substrate is located within the orthographic projection of the corresponding first light-transmitting hole on the substrate, or the orthographic projection of the first light-transmitting hole on the substrate is located within the orthographic projection of the corresponding second light-transmitting hole on the substrate; And / or, the orthographic projection of the light-blocking structure on the substrate is located within the orthographic projection of the second sub-pixel definition layer on the substrate, and the orthographic projection of the second sub-pixel definition layer on the substrate is located within the orthographic projection of the first sub-pixel definition layer on the substrate.

15. The display panel according to claim 13, characterized in that, Along a direction perpendicular to the plane of the substrate, the first sub-pixel definition layer includes a first surface and a second surface disposed opposite to each other. The first surface is located on the side of the second surface away from the substrate. In the region between two adjacent light-emitting units, the orthographic projection of the corresponding first surface on the substrate is located within the orthographic projection range of the second surface on the substrate.

16. The display panel according to claim 13, characterized in that, The pixel opening includes a first pixel sub-opening and a second pixel sub-opening. The first sub-pixel definition layer includes the first pixel sub-opening, and the second sub-pixel definition layer includes the second pixel sub-opening. The first sub-pixel definition layer includes a seventh side surface forming the first pixel sub-opening, and the second sub-pixel definition layer includes an eighth side surface forming the second pixel sub-opening. In a cross section passing through the light-emitting unit in a direction perpendicular to the plane of the substrate, the seventh side surface includes a seventh edge line, the eighth side surface includes an eighth edge line, the substrate includes a baseline, and the baseline intersects with the extension lines of the seventh edge line and the eighth edge line, respectively. The angle between the seventh edge line and the baseline is greater than the angle between the eighth edge line and the baseline.

17. The display panel according to claim 13, characterized in that, At least one of the pixel openings has a circular or elliptical orthogonal projection onto the substrate; The first sub-opening has a circular or elliptical orthographic projection on the substrate, and / or the second sub-opening has a circular or elliptical orthographic projection on the substrate, and / or the fifth sub-opening has a circular or elliptical orthographic projection on the substrate.

18. The display panel according to claim 13, characterized in that, The orthographic projection of the pixel opening onto the substrate is elliptical, and the ratio of the major axis to the minor axis of the ellipse is in the range of 1 to 1.

5.

19. The display panel according to claim 13, characterized in that, The first sub-opening, the second sub-opening, the fifth sub-opening, and the pixel opening all have elliptical orthogonal projections onto the substrate. The angle between the extension of the major axis of the orthographic projection of the first sub-opening on the substrate and the extension of the major axis of the pixel opening is an acute angle, and / or the angle between the extension of the major axis of the orthographic projection of the second sub-opening on the substrate and the extension of the major axis of the pixel opening is an acute angle, and / or the angle between the extension of the major axis of the orthographic projection of the fifth sub-opening on the substrate and the extension of the major axis of the pixel opening is an acute angle.

20. The display panel according to claim 13, characterized in that, The first sub-opening has a first distance between its orthographic projection edge on the substrate and the corresponding pixel opening has a first distance between its orthographic projection edge on the substrate. The first distance increases and decreases periodically along the circumferential direction of the pixel opening. And / or, the second sub-opening has a second distance between its orthographic projection edge on the substrate and the corresponding pixel opening has a second distance between its orthographic projection edge on the substrate, and the second distance increases or decreases periodically along the circumferential direction of the pixel opening; And / or, the orthographic projection edge of the fifth sub-opening on the substrate and the orthographic projection edge of the corresponding pixel opening on the substrate have a third spacing, and the third spacing periodically increases and decreases along the circumferential direction of the pixel opening.

21. The display panel according to claim 13, characterized in that, The orthographic projection center of the first sub-opening on the substrate and the orthographic projection center of the corresponding pixel opening on the substrate do not overlap; And / or, the orthographic projection center of the second sub-opening on the substrate and the orthographic projection center of the corresponding pixel opening on the substrate do not overlap; And / or, the orthographic projection center of the fifth sub-opening on the substrate and the orthographic projection center of the corresponding pixel opening on the substrate do not overlap.

22. The display panel according to claim 13, characterized in that, The distance between the center of the orthographic projection of the first sub-opening on the substrate and the center of the orthographic projection of the corresponding pixel opening on the substrate is greater than or equal to 1 micrometer, and / or the distance between the center of the orthographic projection of the second sub-opening on the substrate and the center of the orthographic projection of the corresponding pixel opening on the substrate is greater than or equal to 1 micrometer, and / or the distance between the center of the orthographic projection of the fifth sub-opening on the substrate and the center of the orthographic projection of the corresponding pixel opening on the substrate is greater than or equal to 1 micrometer.

23. The display panel according to claim 13, characterized in that, The plurality of light-emitting units are arranged along a first direction and a second direction, the first direction and the second direction intersect, and both are parallel to the direction of the substrate. Along the second direction, a first type of unit and a second type of unit are alternately arranged. The first type of unit includes the first light-emitting unit and the second light-emitting unit alternately arranged along the second direction, and the second type of unit includes the third light-emitting unit spaced apart along the second direction. In the same first type of unit, the offset direction of the orthographic projection center of at least one first sub-opening on the substrate relative to the orthographic projection center of the corresponding pixel opening on the substrate is different from the offset direction of the orthographic projection center of at least one second sub-opening on the substrate relative to the orthographic projection center of the corresponding pixel opening on the substrate; In at least one of the second type of units, the orthogonal projection center of the fifth sub-opening corresponding to at least two of the third light-emitting units on the substrate is offset in a different direction from the orthogonal projection center of the corresponding pixel opening on the substrate.

24. The display panel according to claim 1, characterized in that, The display panel includes a bent area and a flat area; The display panel further includes a cover plate disposed on the side of the filter structure opposite to the substrate. The cover plate includes a first cover plate portion located in the bending area and a second cover plate portion located in the planar area. The thickness of the first cover plate portion is less than the thickness of the second cover plate portion. The cover plate has a first groove on the side facing the substrate. The first groove includes an inclined surface and a bottom surface connected to the inclined surface. The included angle between the inclined surface and the bottom surface is greater than or equal to 1° and less than or equal to 2°.

25. The display panel according to claim 24, characterized in that, The display panel further includes a support structure disposed on the side of the substrate opposite to the filter structure, the support structure including a base layer and at least two sub-layers disposed on the side of the base layer opposite to the substrate; The at least two sub-layers include a first sub-layer and a second sub-layer. The second sub-layer is disposed on the side of the first sub-layer away from the base layer. In the bending area, the first sub-layer has a first opening, and the second sub-layer has a second opening. The orthographic projection of the second opening on the base layer covers the orthographic projection of the first opening on the base layer.

26. The display panel according to claim 25, characterized in that, The projected area of ​​the second opening on the substrate is greater than the projected area of ​​the first opening on the substrate.

27. The display panel according to claim 26, characterized in that, It also includes a first light-shielding layer disposed on the side of the filter structure away from the substrate. The first light-shielding layer includes a first light-shielding portion. The orthogonal projection of the first light-shielding portion on the substrate is disposed around at least part of the orthogonal projection of the light-emitting unit on the substrate. The orthogonal projection of the light-blocking structure on the substrate covers the orthogonal projection of the first light-shielding portion on the substrate.

28. The display panel according to claim 27, characterized in that, The display panel further includes a second light-shielding layer, which is disposed on the side of the first light-shielding layer away from the substrate. The second light-shielding layer includes a second light-shielding portion, and the orthographic projection of the second light-shielding portion on the substrate is disposed around at least a portion of the orthographic projection of the light-emitting unit on the substrate. The orthographic projections of the first light-shielding portion on the substrate and the orthographic projections of the second light-shielding portion on the substrate at least partially overlap.

29. A display device, characterized in that, Includes the display panel as described in any one of claims 1-28.

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