Display panel and display apparatus

Abstract

A display panel and a display apparatus. The display panel comprises a base substrate, a fingerprint recognition structure and a plurality of pixel units, wherein the pixel units and the fingerprint recognition structure are arranged on the same side of the base substrate; each pixel unit comprises an opening region and a non-opening region, the opening region surrounds the non-opening region, and the opening region is provided with one first pixel opening, two second pixel openings and one third light-emitting-region opening; and the projection of the fingerprint recognition structure on the base substrate is set to at least partially overlap with the projections of the non-opening regions of the pixel units on the base substrate. The display apparatus comprises the display panel.

Description

Display panel and display device

[0001] This application claims priority to the Chinese patent application filed on June 13, 2023, with application number 202310700918.6 and invention name “A Display Panel and Display Device”, the contents of which should be understood as incorporated into this application by reference. Technical Field

[0002] The present disclosure relates to, but is not limited to, the field of display devices, and in particular to a display panel and a display apparatus. Background Art

[0003] OLED (Organic Light Emitting Diode) display technology boasts advantages such as thinness, self-luminescence, wide viewing angle, fast response time, low brightness, and low power consumption. OLED display technology has become a major development direction in the display technology field. Currently, OLED display devices have begun to replace traditional liquid crystal displays (LCDs) in flat-panel displays such as mobile phones, PDAs, and digital cameras.

[0004] In-display fingerprint technology integrates the fingerprint sensor into the display, maximizing its performance while also reducing thickness. Most importantly, it can detect fingerprints or palm prints over a large area, or even the entire screen. Integrating the fingerprint sensor into the display affects pixel layout, reducing the pixel aperture ratio and affecting display quality.

[0005] Summary of the Invention

[0006] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0007] At least one embodiment of the present disclosure provides a display panel, comprising a base substrate, a fingerprint recognition structure, and a plurality of pixel units, wherein the fingerprint recognition structure is disposed on the base substrate, and the plurality of pixel units are disposed on a side of the fingerprint recognition structure facing away from the base substrate;

[0008] Each of the pixel units includes an opening area and a non-opening area, wherein the opening area surrounds the non-opening area, and the opening area is provided with a first pixel opening, two second pixel openings and a third light-emitting area opening;

[0009] The projection of the fingerprint recognition structure on the base substrate is arranged to overlap with the projection of the non-opening area of ​​the pixel unit on the base substrate.

[0010] In some exemplary embodiments, the fingerprint recognition structure includes a plurality of fingerprint recognition sensors, and projections of the plurality of fingerprint recognition sensors on the substrate are arranged to be located within projections of the non-opening area of ​​the pixel unit on the substrate.

[0011] In some exemplary embodiments, the plurality of pixel units include at least one first pixel unit and at least one second pixel unit;

[0012] The distance between the center of the first pixel opening and the center of the third pixel opening of the first pixel unit is set to a first distance;

[0013] The distance between the center of the first pixel opening and the center of the third pixel opening of the second pixel unit is set to a second distance;

[0014] The first distance is set to be unequal to the second distance;

[0015] The projections of the multiple fingerprint recognition sensors on the substrate substrate are arranged to be located within the projection of the non-opening area of ​​the first pixel unit on the substrate substrate; or, the projections of the multiple fingerprint recognition sensors on the substrate substrate are arranged to be located within the projection of the non-opening area of ​​the second pixel unit on the substrate substrate; or, the projections of the multiple fingerprint recognition sensors on the substrate substrate are arranged to be located within the projections of the non-opening areas of the first pixel unit and the second pixel unit on the substrate substrate.

[0016] In some exemplary embodiments, the projected edge of the non-opening area on the substrate includes a plurality of first edges connected end to end;

[0017] The projected edge of the fingerprint recognition sensor on the substrate includes a plurality of second edges connected end to end;

[0018] The first edge and the second edge are arranged in a one-to-one correspondence.

[0019] In some exemplary embodiments, at least one of the first edges is arranged parallel to the corresponding second edge, or

[0020] At least one of the first edges and the corresponding second edge are arc-shaped and concentrically arranged.

[0021] In some exemplary embodiments, a first light-emitting area is provided in the first pixel opening, and the first light-emitting area includes a second pattern and a third pattern connected to each other;

[0022] The length of the second pattern in the second direction is smaller than the length of the third pattern in the second direction, or the area of ​​the second pattern is smaller than the area of ​​the third pattern, and the second direction is parallel to the base substrate.

[0023] In some exemplary embodiments, the second figure is configured as a semicircle, the third figure is configured as a semi-ellipse, and the straight edges of the second figure correspond to the straight edges of the third figure.

[0024] In some exemplary embodiments, in the opening area, the first pixel opening, one second pixel opening, the third pixel opening, and another second pixel opening are arranged in sequence around the circumference of the non-opening area;

[0025] A line connecting the center of the first pixel opening and the centers of the two second pixel openings is configured to form a first figure with a line connecting the centers of the third pixel opening and the two second pixel openings, and the first figure is configured to be a quadrilateral.

[0026] In some exemplary embodiments, the first figure is configured as an irregular trapezoid having at least one right angle.

[0027] In some exemplary embodiments, in the opening area of ​​the first pixel unit, the distances between the center of the first pixel opening and the centers of the two second pixel openings are equal, and the distances between the center of the third pixel opening and the centers of the two second pixel openings are not equal.

[0028] In some exemplary embodiments, in the opening area of ​​the second pixel unit, the distance between the center of the first pixel opening and the centers of the two second pixel openings is set to L1, and the distance between the center of the third pixel opening and the centers of the two second pixel openings is equal.

[0029] In some exemplary embodiments, the plurality of pixel units further include at least one third pixel unit;

[0030] In the opening area of ​​the third pixel unit, the distance between the center of the first pixel opening and the centers of the two second pixel openings is set to L2, and the distance between the center of the third pixel opening and the centers of the two second pixel openings is equal, where L2<L1.

[0031] In some exemplary embodiments, a first light emitting area is provided in the first pixel opening, a second light emitting area is provided in the second pixel opening, and a third light emitting area is provided in the third pixel opening;

[0032] The first light-emitting area is set as a red light-emitting area, the third light-emitting area is set as a blue light-emitting area, and the second light-emitting area is set as a green light-emitting area;

[0033] An area of ​​the first pixel opening is smaller than an area of ​​the third pixel opening and larger than an area of ​​the second pixel opening.

[0034] In some exemplary embodiments, the arrangement density of the fingerprint recognition sensor is set to P1, the pixel density of the plurality of pixel units is set to P2, and the ratio of P1 to P2 is set to 0.5 to 1.

[0035] At least one embodiment of the present disclosure provides a display device including the above-mentioned display panel.

[0036] Still other aspects will become apparent upon reading and understanding the accompanying drawings and detailed description.

[0037] Summary of the Figures

[0038] FIG1 is a schematic diagram of a display panel according to an embodiment of the present disclosure;

[0039] FIG2 is a schematic diagram of a first pixel unit according to an embodiment of the present disclosure;

[0040] FIG3 is a schematic diagram of a second pixel unit according to an embodiment of the present disclosure;

[0041] FIG4 is a schematic diagram of a third pixel unit according to an embodiment of the present disclosure;

[0042] FIG5 is a schematic diagram of a pixel opening in FIG2 ;

[0043] FIG6 is a schematic diagram of a pixel opening in FIG3 ;

[0044] FIG7 is a schematic diagram of a pixel opening in FIG4 ;

[0045] FIG8 is a schematic diagram of the arrangement of the light-emitting areas in FIG3

[0046] FIG9 is a schematic diagram of the arrangement of pixel units in FIG1 ;

[0047] FIG10 is a schematic diagram of the fingerprint recognition structure in FIG1 ;

[0048] FIG11 is a schematic projection diagram of the fingerprint recognition structure and pixel unit in FIG1 ;

[0049] FIG12 is a schematic projection diagram of the pixel unit and the fingerprint recognition sensor in FIG1 ;

[0050] FIG13 is a schematic diagram of a combination of the first projection and the second projection in FIG12 ;

[0051] FIG14 is a schematic projection diagram of a base substrate of a display panel according to another embodiment of the present disclosure;

[0052] FIG15 is a schematic projection diagram of the pixel unit and fingerprint recognition sensor in FIG14 ;

[0053] FIG16 is a schematic projection diagram of a base substrate of a display panel according to yet another embodiment of the present disclosure;

[0054] FIG17 is a schematic diagram of the second pixel unit in FIG16 ;

[0055] FIG18 is a schematic diagram of the first light-emitting area in FIG17 ;

[0056] FIG19 is a schematic projection diagram of the second pixel unit and the fingerprint recognition sensor in FIG16 .

[0057] Details

[0058] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. Note that the embodiments can be implemented in a variety of different forms. A person of ordinary skill in the art can easily understand the fact that the methods and contents can be transformed into various forms without departing from the purpose and scope of the present disclosure. Therefore, the present disclosure should not be interpreted as being limited to the contents described in the following embodiments. In the absence of conflict, the embodiments in the present disclosure and the features in the embodiments can be arbitrarily combined with each other.

[0059] In this specification, ordinal numbers such as “first”, “second” and “third” are provided to avoid confusion among constituent elements, and are not intended to limit the number.

[0060] In this specification, for convenience, words and phrases indicating orientation or positional relationships, such as "middle," "upper," "lower," "front," "back," "vertical," "horizontal," "top," "bottom," "inside," and "outside," are used to illustrate the positional relationships of constituent elements with reference to the accompanying drawings. This is merely for the purpose of facilitating the description of this specification and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present disclosure. The positional relationships of constituent elements may be appropriately changed depending on the direction in which each constituent element is described. Therefore, the present disclosure is not limited to the words and phrases described in the specification and may be appropriately replaced according to the circumstances.

[0061] In this specification, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct connections, indirect connections through intermediaries, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure.

[0062] As shown in Figures 1, 2, 11, and 12, at least one embodiment of the present disclosure provides a display panel that can be used in an OLED display device. The display panel includes a base substrate 1, a fingerprint recognition structure 2, and multiple pixel units 3. The pixel units 3 and the fingerprint recognition structure 2 are arranged on the same side of the base substrate 1. Each pixel unit 3 includes an opening area 4 and a non-opening area 5. The opening area 4 surrounds the non-opening area 5 and is provided with a first pixel opening 10, two second pixel openings 11, and a third pixel opening 12. The projection of the fingerprint recognition structure 2 on the base substrate 1 is arranged to overlap with the projection of the non-opening area 5 of the pixel unit 3 on the base substrate 1. The projection of the fingerprint recognition structure 2 on the base substrate 1 is arranged to transmit the projection on the base substrate 1 in a first direction, which is perpendicular to the base substrate 1. The pixel units 3 are located on the side of the fingerprint recognition structure 2 facing away from the base substrate 1. As a result, the arrangement of the fingerprint recognition structure 2 and pixel units 3 in the display panel not only improves the pixel aperture ratio and enhances the display quality, but also increases the arrangement density of the fingerprint recognition structure, meeting the requirements of full-screen fingerprint use.

[0063] As shown in Figures 1 and 9, the fingerprint recognition structure 2 includes multiple fingerprint recognition sensors 9, which are spaced apart and arranged on a base substrate 1. The pixel unit 3 is located on the side of the fingerprint recognition structure 2 facing away from the base substrate 1 in a first direction. The projections of the multiple fingerprint recognition sensors 9 on the base substrate 1 are configured to fall within the projections of the non-opening areas 5 of the pixel units 3 on the base substrate 1. The projection of the fingerprint recognition sensors 9 on the base substrate 1 is configured as a first projection 13.

[0064] In some exemplary embodiments, as shown in Figures 5 to 7, the opening area 4 of each pixel unit 3 includes four openings, namely, a first pixel opening 10, two second pixel openings 11, and a third pixel opening 12. The hole shapes of the first pixel opening 10, the second pixel opening 11, and the third pixel opening 12 are all circular, and the opening areas of the third pixel opening 12, the first pixel opening 10, and the second pixel opening 11 decrease in sequence.

[0065] In some exemplary embodiments, as shown in Figures 2 to 4, the opening area 4 of each pixel unit 3 forms four light-emitting areas. A light-emitting area refers to the area where the pixel opening exposes the anode, namely, one first light-emitting area 6, two second light-emitting areas 7, and one third light-emitting area 8. The first light-emitting area 6 can be a red light-emitting area that emits red light, the third light-emitting area 8 can be a blue light-emitting area that emits blue light, and the second light-emitting area 7 can be a green light-emitting area that emits green light. One first light-emitting area 6, two second light-emitting areas 7, and one third light-emitting area 8 constitute an independent light-emitting pixel. However, this is not limited to this. For example, the first light-emitting area 6 can be a blue light-emitting area that emits blue light, the third light-emitting area 8 can be a red light-emitting area that emits red light, and the second light-emitting area 7 can be a green light-emitting area that emits green light. The shapes of the first light-emitting area 6, the second light-emitting area 7 and the third light-emitting area 8 can all be circular, so that the shape of the pixel opening matches the first light-emitting area 6, the second light-emitting area 7 and the third light-emitting area 8. Moreover, the area of ​​the first light-emitting area 6 is smaller than the area of ​​the third light-emitting area 8, and the area of ​​the second light-emitting area 7 is smaller than the area of ​​the first light-emitting area 6, but is not limited to this. For example, the first light-emitting area 6, the second light-emitting area 7 and the third light-emitting area 8 can all be polygons or irregular shapes such as rectangles, ellipses, and hexagons; for another example, the areas of the first light-emitting area 6, the second light-emitting area 7 and the third light-emitting area 8 can be equal, or the areas of the first light-emitting area 6, the second light-emitting area 7 and the third light-emitting area 8 are not equal and the size relationship is not limited. The hole shapes of the first pixel opening 10, the second pixel opening 11, and the third pixel opening 12 can all match those of the first light-emitting zone 6 and other light-emitting zones. The hole shapes of the first pixel opening 10, the second pixel opening 11, and the third pixel opening 12 can all be rectangular, hexagonal, elliptical, or the like. For another example, the hole shapes of the first pixel opening 10, the second pixel opening 11, and the third pixel opening 12 can all be non-matching with those of the first light-emitting zone 6 and other light-emitting zones. The first light-emitting zone 6 and other light-emitting zones can be circular, and the hole shapes of the first pixel opening 10, the second pixel opening 11, and the third pixel opening 12 can all be elliptical. The first light-emitting zone 6 is correspondingly disposed within and concentric with the first pixel opening 10. The two second light-emitting zones 7 are respectively disposed concentrically with the two second pixel openings 11. The third light-emitting zone 8 is correspondingly disposed within and concentric with the third pixel opening 12. Therefore, the center of the first light-emitting zone 6 coincides with the center of the first pixel opening 10, the center of the second light-emitting zone 7 coincides with the center of the second pixel opening 11, and the center of the third light-emitting zone 8 coincides with the center of the third pixel opening 12. The center of the first light-emitting area 6 is the geometric center of the first light-emitting area 6, the center of the second light-emitting area 7 is the geometric center of the second light-emitting area 7, and the center of the third light-emitting area 8 is the geometric center of the third light-emitting area 8. The center of the first pixel opening 10 is the geometric center of the first pixel opening 10, the center of the second pixel opening 11 is the geometric center of the second pixel opening 11, and the center of the third pixel opening 12 is the geometric center of the third pixel opening 12.

[0066] In some exemplary embodiments, as shown in Figures 2 to 5, a first light-emitting area 6, a second light-emitting area 7, a third light-emitting area 8, and another second light-emitting area 7 are sequentially arranged around the circumference of the non-opening area 5. The first light-emitting area 6 and the third light-emitting area 8 are spaced apart, and the two second light-emitting areas 7 are located between the first light-emitting area 6 and the third light-emitting area 8 and spaced apart. Furthermore, the line connecting the centers of the two second light-emitting areas 7 may intersect with the line connecting the centers of the first light-emitting area 6 and the third light-emitting area 8. The center of each light-emitting area is the geometric center of the light-emitting area, and the line connecting the centers is the line connecting the geometric centers of the two light-emitting areas. The centers of a first pixel opening 10, a second pixel opening 11, a third pixel opening 12, and another second pixel opening 11 are sequentially connected to form a first pattern 29. The first pattern 29 is a quadrilateral with interior angles α, β, i, and j, respectively. The line connecting the center of a second pixel opening 11 and the center of the first pixel opening 10 is set to form an angle β with the line connecting the centers of the second pixel opening 11 and the third pixel opening 12. The line connecting the center of the other second pixel opening 11 and the center of the first pixel opening 10 is set to form an angle j with the line connecting the centers of the second pixel opening 11 and the third pixel opening 12. The line connecting the center of the first pixel opening 10 and the center of one second pixel opening 11 is set to form an angle i with the line connecting the center of the first pixel opening 10 and the center of the other second pixel opening 11. The line connecting the center of the third pixel opening 12 and the center of one second pixel opening 11 is set to form an angle α with the line connecting the center of the third pixel opening 12 and the center of the other second pixel opening 11. As shown in Figure 8, the line connecting the center of one second light-emitting area 7 and the center of the first light-emitting area 6 is set to form an angle β with the line connecting the center of the second light-emitting area 7 and the center of the third light-emitting area 8. The line connecting the center of the other second light-emitting area 7 and the center of the first light-emitting area 6 is set to form an angle j with the line connecting the center of the second light-emitting area 7 and the center of the third light-emitting area 8. The line connecting the center of the first light-emitting area 6 and the center of one second light-emitting area 7 is set to form an angle i with the line connecting the center of the first light-emitting area 6 and the center of the other second light-emitting area 7. The line connecting the center of the third light-emitting area 8 and the center of the second light-emitting area 7 is set to have an angle α with the line connecting the center of the third light-emitting area 8 and the center of another second light-emitting area 7 .

[0067] In some exemplary embodiments, as shown in Figure 9, the multiple pixel units 3 include at least one first pixel unit 19, at least one second pixel unit 21 and at least one third pixel unit 22. The first pixel unit 19, the second pixel unit 21 and the third pixel unit 22 have differences in terms of the spacing of pixel openings, etc., wherein the distance between the center of the first pixel opening 10 of the first pixel unit 19 and the center of the third pixel opening 12 is set to a first distance, the distance between the center of the first pixel opening 10 of the second pixel unit 21 and the center of the third pixel opening 12 is set to a second distance, and the distance between the center of the first pixel opening 10 of the third pixel unit 22 and the center of the third pixel opening 12 is set to a third distance. The values ​​of the first distance, the second distance and the third distance are all different, the second distance is greater than the first distance, and the first distance is greater than the third distance. The center of each pixel opening is the geometric center of the pixel opening, and the center line is the connecting line of the geometric centers of the two pixel openings.

[0068] In some exemplary embodiments, as shown in Figures 2 and 5, in the first pixel unit 19, the two second light-emitting areas 7 may be circular in shape with the same diameter, and the two second pixel openings 11 may be through-holes with the same diameter. The third pixel opening 12 is tangent to each of the two second pixel openings 11, and the center distances from the third pixel opening 12 to the two second pixel openings 11 are consistent, both being L3. The center distance is the distance from the geometric center of one pixel opening to the geometric center of the other pixel opening. The first pixel opening 10 is tangent to one of the second pixel openings 11, and the first pixel opening 10 and the other second pixel opening 11 are spaced apart. The center distance between the first pixel opening 10 and one of the second pixel openings 11 is L1, and the center distance between the first pixel opening 10 and the other second pixel opening 11 is L2, where L2 is less than L1. The line connecting the centers of the four pixel openings forms a first pattern 29. The internal angles of the first pattern 29 are α, β, i, and j, respectively, where α = 90°, β = 85°, i = 89°, and j = 96°. One internal angle of the first pattern 29 is a right angle.

[0069] In some exemplary embodiments, as shown in Figures 3 and 6, in the second pixel unit 21, the two second light-emitting areas 7 may be circular in shape with the same diameter, and the two second pixel openings 11 may be two through holes with the same diameter. The third pixel opening 12 is tangent to the two second pixel openings 11, and the center distances from the third pixel opening 12 to the two second pixel openings 11 are the same, both L3. The first pixel opening 10 and the two second pixel openings 11 are spaced apart, and the center distance from the first pixel opening 10 to the two second pixel openings 11 is L1. The center line connecting the four pixel openings forms a first figure, and the internal angles of the first figure are α, β, i, and j, respectively, where α = 90°, and one of the internal angles of the first figure is a right angle.

[0070] In some exemplary embodiments, as shown in Figures 4 and 7, in the third pixel unit 22, the two second light-emitting areas 7 may be circular in shape with the same diameter, and the two second pixel openings 11 may be two through-holes with the same diameter. The third pixel opening 12 is tangent to the two second pixel openings 11, and the center distances from the third pixel opening 12 to the two second pixel openings 11 are consistent, both being L3. The first pixel opening 10 is tangent to the two second pixel openings 11, and the center distances from the first pixel opening 10 to the two second pixel openings 11 are L2. The center lines connecting the four light-emitting areas form a first figure, and the interior angles of the first figure are α, β, i, and j, respectively, where α = 90°, and one interior angle of the first figure is a right angle.

[0071] In some exemplary embodiments, as shown in FIG9 , the first pixel opening 10, second pixel opening 11, and third pixel opening 12 of the aforementioned pixel unit 3 are all disposed on a metal mask, with each light-emitting region disposed corresponding to the pixel opening. The first pixel opening 10, second pixel opening 11, and third pixel opening 12 surround the non-opening region 5, such that the light-emitting regions of all pixel units 3 are arranged in a combination as shown in FIG9 . In FIG9 , each first pixel opening 10 and corresponding first light-emitting region 6, any two second pixel openings 11 adjacent to the first pixel opening 10 and corresponding second light-emitting region 7, and a third pixel opening 12 adjacent to both second pixel openings 11 and corresponding third light-emitting region 8 constitute a pixel unit 3. The pixel unit 3 may be the first pixel unit 19, the second pixel unit 21, or the third pixel unit 22. The plurality of third light-emitting areas 8 are arranged in an array. The plurality of third light-emitting areas 8 in the same row are arranged at equal intervals in the row direction, and the third light-emitting areas 8 in adjacent rows are arranged in a staggered manner. For example, the third light-emitting areas 8 in the first row (i.e., row A1) and the third row (i.e., row A3) are arranged at equal intervals in the row direction, and the third light-emitting areas 8 in the first row (i.e., row A1) and the third row (i.e., row A3) are arranged in a staggered manner. The plurality of third light-emitting areas 8 in the same column are arranged at equal intervals in the column direction, and the third light-emitting areas 8 in adjacent columns are arranged in a staggered manner. For example, the third light-emitting areas 8 in the first column (i.e., column B1) and the third column (i.e., column B3) are arranged at equal intervals in the column direction, and the third light-emitting areas 8 in the first column (i.e., column B1) and the third column (i.e., column B3) are arranged in a staggered manner. Multiple second light-emitting areas 7 are arranged in a matrix. The multiple second light-emitting areas 7 in the same row are evenly spaced in the row direction, and the second light-emitting areas 7 in adjacent rows are arranged in a corresponding manner. For example, the second light-emitting areas 7 in the second row (i.e., row A2) are all evenly spaced in the row direction. The second light-emitting areas 7 in the second row (i.e., row A2) and the second column (i.e., column B2) correspond in the column direction to the adjacent second light-emitting areas 7 in the second column (i.e., column B2). A first light-emitting area 6 is located between two adjacent third light-emitting areas 8 in the same row, and a first light-emitting area 6 is located between two adjacent third light-emitting areas 8 in the same column. The centers of the first light-emitting areas 6 in the same row are offset relative to the geometric center of the third light-emitting areas 8 in the column direction. For example, in the first row (i.e., row A1), the centers of the two first light-emitting areas 6 are offset relative to the geometric center of the third light-emitting area 8 in the column direction, and the offsets are in opposite directions. The centers of the first light-emitting areas 6 in the same column are offset in the row direction relative to the geometric center of the third light-emitting area 8. For example, in the first column (i.e., column B1), the centers of the two first light-emitting areas 6 are offset in the row direction relative to the geometric center of the third light-emitting area 8, and the offset directions are opposite.

[0072] In some exemplary embodiments, as shown in FIG9 , the first light-emitting areas 6 arranged according to a certain pattern, the second light-emitting areas 7 arranged in a matrix, and the third light-emitting areas 8 arranged in an array, the first light-emitting areas 6 and the adjacent second light-emitting areas 7 and third light-emitting areas 8 can be combined to form the aforementioned multiple first pixel units 19, multiple second pixel units 21, and multiple third pixel units 22. For example, a first light-emitting area 6 in the seventh row (i.e., row A7) and fifth column (i.e., column B5), a second light-emitting area 7 in the eighth row (i.e., row A8) and fourth column (i.e., column B4), a second light-emitting area 7 in the eighth row (i.e., row A8) and sixth column (i.e., column B6), and a third light-emitting area 8 in the ninth row (i.e., row A9) and fifth column (i.e., column B5) together with the corresponding openings and the surrounding non-opening areas constitute a first pixel unit 19. For another example, the same first light-emitting area 6, that is, a first light-emitting area 6 in the seventh row (i.e., row A7) and the fifth column (i.e., column B5), a second light-emitting area 7 in the sixth row (i.e., row A6) and the sixth column (i.e., column B6), a second light-emitting area 7 in the eighth row (i.e., row A8) and the sixth column (i.e., column B6), and a third light-emitting area 8 in the seventh row (i.e., row A7) and the seventh column (i.e., column B7), the four and the corresponding openings and the surrounding non-opening areas constitute a third pixel unit 22. For another example, the same first light-emitting area 6, that is, a first light-emitting area 6 in the seventh row (i.e., row A7) and the fifth column (i.e., column B5), a second light-emitting area 7 in the sixth row (i.e., row A6) and the fourth column (i.e., column B4), a second light-emitting area 7 in the eighth row (i.e., row A8) and the fourth column (i.e., column B4), and a third light-emitting area 8 in the seventh row (i.e., row A7) and the third column (i.e., column B3), the four and the corresponding openings and the surrounding non-opening areas constitute a second pixel unit 21.

[0073] In some exemplary embodiments, as shown in Figures 9, 11, and 13, the projection of the fingerprint sensor 9 corresponds to the projection of the non-opening area 5 within the projection of the first pixel unit 19 (i.e., the first pixel projection 15). The projection of the fingerprint sensor 9 is located between the projections of the first and third luminous areas, which can improve the uniformity of the overall placement of the fingerprint sensor 9. The edge of the non-opening area 5 of the first pixel unit 19 is bounded by the edge lines of the first pixel opening 10, the second pixel opening 11, and the third pixel opening 12, as well as the edge lines of adjacent pixel units. The projection of the non-opening area 5 of the first pixel unit 19 on the substrate 1 is set as a second projection 14. The second projection 14 is a portion of the first pixel projection 15. The edge line of the second projection 14 is a non-opening edge 24. The non-opening edge 24 includes five first edges 26 connected end to end. Four of the five first edges 26 are arcuate lines, and one first edge 26 is a straight line. The projection of the fingerprint sensor 9 on the substrate 1 is set as a first projection 13. The first projection 13 is arranged to correspond one-to-one with the second projection 14 and falls within the corresponding second projection 14. The first projection 13 is centered relative to the second projection 14. The edge of the first projection 13 forms the sensor edge 23. The sensor edge 23 includes five end-to-end second edges 25. Four of the five second edges 25 are curved, and one is a straight line. The four curved second edges 25 correspond one-to-one with the four curved first edges 26. Furthermore, the four curved second edges 25 and the corresponding first edges 26 are concentric and equidistant. The one straight second edge 25 corresponds to and is parallel to the straight first edge 26. The outer contour of the first projection 13 matches the outer contour of the second projection 14. Both the outer contours of the first projection 13 and the second projection 14 are irregular, similar to a trapezoid. This maximizes the area of ​​the first projection 13 and improves the aperture ratio. The shape of the first projection 13 is not limited to this. The first projection 13 can also be a regular shape, such as a rectangle, a circle, or a triangle. Therefore, the density per unit area of ​​the fingerprint recognition sensor 9 is set to P1, and the pixel density of the plurality of pixel units is set to P2, wherein P1:P2=1:1, resulting in a superior display effect and more effective fingerprint recognition.

[0074] In some exemplary embodiments, as shown in Figures 9, 14, and 15, the projection of the fingerprint recognition sensor 9 corresponds to the projection of the non-opening area 5 in the projection of the second pixel unit 21 (i.e., the second pixel projection 16). The projection of the fingerprint recognition sensor 9 is located between the projections of the first light-emitting area and the third light-emitting area, which can improve the uniformity of the overall placement of the fingerprint recognition sensor 9. The edge of the non-opening area 5 of the second pixel unit 21 is surrounded by the edge lines of the first pixel opening 10, the second pixel opening 11, and the third pixel opening 12, as well as the edge lines of adjacent pixel units. The projection of the non-opening area 5 of the second pixel unit 21 on the substrate 1 is set as the third projection 18, which is a part of the first pixel projection 15. The projection of the fingerprint recognition sensor 9 on the substrate 1 is set as the first projection 13, which is set to correspond one-to-one with the third projection 18 and falls within the corresponding third projection 18. First projection 13 is centered relative to third projection 18. The outer contour of first projection 13 matches the outer contour of third projection 18. Both the outer contours of first projection 13 and third projection 18 are irregular shapes, similar to trapezoidal shapes. This maximizes the area of ​​first projection 13 and improves the aperture ratio. The shape of first projection 13 is not limited to this; first projection 13 can be a regular shape, such as a rectangle, circle, or triangle. Thus, the density per unit area of ​​fingerprint sensor 9 is set to P1, and the pixel density of multiple pixel units is set to P2, where P1:P2 = 1:2. This results in superior display quality and more effective fingerprint recognition.

[0075] In some exemplary embodiments, as shown in Figures 16 to 19, the projection of the fingerprint recognition sensor 9 corresponds to the projection arrangement of the non-opening area 5 in the projection of the second pixel unit 21 (i.e., the second pixel projection 16). The second light-emitting area 7 and the third light-emitting area 8 are both circular in shape. The first light-emitting area 6 is not circular in shape. The first light-emitting area 6 includes a second figure 20 and a third figure 28. The connection between the second figure 20 and the third figure 28 is a reference line c, which extends along the third direction. On a plane parallel to the substrate 1, the area of ​​the orthographic projection of the third figure 28 is greater than the area of ​​the orthographic projection of the second figure. The second figure 20 is semicircular, and the third figure 28 is semi-elliptical. The straight edges of the second figure 20 are the straight edges of the second figure 20, and the straight edges of the third figure 28 are the straight edges of the third figure 28. The straight edges of the second figure 20 and the straight edges of the third figure 28 correspond to each other. Because the third pattern 28 is semi-elliptical, the second pixel unit 21 is not symmetrical about the reference line c. The length of the second pattern 20 in the second direction is shorter than that of the third pattern 28 in the second direction. This is equivalent to the first light-emitting area 6 being stretched in the second direction on the side of the third pattern 28. The second direction is parallel to the substrate 1 and perpendicular to the third direction. In the second pixel unit 21, the semi-elliptical shape of the third pattern 28 also places the projection of the first light-emitting area 6 (i.e., the fourth projection 27) on the side facing away from the projection of the fingerprint sensor 9 corresponding to the second pixel unit 21. In the pixel arrangement structure formed by the second pixel unit 21, the side of the third pattern 28 on the reference line c is set to be the same as the side of the first light-emitting area 6 offset from the third light-emitting area in the row or column direction. As a result, the first light-emitting area 6 forms an asymmetric design, and the corresponding first pixel opening 10 also matches the first light-emitting area 6 to form an asymmetric design. The shape of the first light-emitting area 6 can improve the overall pixel aperture ratio. However, the shape of the third pattern 28 is not limited to a semi-elliptical shape; for example, it can also be a rectangle.

[0076] In some exemplary embodiments, all pixel units 3 may be first pixel units 19, and the fingerprint recognition sensor 9 may be disposed corresponding to the non-opening area 5 of the first pixel unit 19. Alternatively, all pixel units 3 may be second pixel units 21, and the fingerprint recognition sensor 9 may be disposed corresponding to the non-opening area 5 of the second pixel unit 21. Alternatively, all pixel units 3 may be partially first pixel units 19 and partially second pixel units 21, and the pixel units 3 may not include the third pixel unit 22. The fingerprint recognition sensor 9 may be disposed corresponding to the non-opening area 5 of the first pixel unit 19, or the non-opening area 5 of the second pixel unit 21, or the non-opening area 5 of both the first pixel unit 19 and the second pixel unit 21. Alternatively, all pixel units 3 may be third pixel units 22, and the fingerprint recognition sensor 9 may be disposed corresponding to the non-opening area 5 of the third pixel unit 22.

[0077] In some exemplary embodiments, the pixel unit 3 and the fingerprint recognition structure 2 are located on different sides of the substrate 1 , that is, the fingerprint recognition structure 2 is located on one side of the substrate 1 in the first direction, and the pixel unit 3 is located on the other side of the substrate 1 .

[0078] In some exemplary embodiments, a display device includes the above-mentioned display panel, and the display device may be an OLED display device.

[0079] Combined with the above-mentioned embodiments, the arrangement of the fingerprint recognition structure 2 and pixel units 3 in the display panel not only improves the pixel aperture ratio and enhances the display quality, but also increases the aperture ratio of the fingerprint recognition structure 2 to meet the needs of full-screen fingerprint usage. The fingerprint recognition sensor 9 is located between the two luminous areas, which can improve the uniformity of the overall placement of the fingerprint recognition sensor 9. The first luminous area 6 is designed with an asymmetric axis to improve the overall pixel aperture ratio.

[0080] The above-described embodiments merely represent several embodiments of the present disclosure, and the descriptions thereof are relatively specific and detailed. However, the contents described are merely embodiments adopted to facilitate understanding of the present disclosure and are not intended to limit the present disclosure. Any person skilled in the art of the present disclosure may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope of the present disclosure. However, the scope of patent protection of the present disclosure shall still be defined by the appended claims.

Claims

1. A display panel, wherein: It comprises a substrate, a fingerprint recognition structure and a plurality of pixel units, wherein the fingerprint recognition structure is arranged on the substrate, and the plurality of pixel units are arranged on a side of the fingerprint recognition structure facing away from the substrate; Each of the pixel units comprises an opening area and a non-opening area, wherein the opening area surrounds the non-opening area, and the opening area is provided with a first pixel opening, two second pixel openings and a third light-emitting area opening; The projection of the fingerprint recognition structure on the base substrate is arranged to overlap with the projection of the non-opening area of ​​the pixel unit on the base substrate.

2. The display panel according to claim 1, wherein: The fingerprint recognition structure comprises a plurality of fingerprint recognition sensors, and projections of the plurality of fingerprint recognition sensors on the substrate are arranged to be located within projections of the non-opening area of ​​the pixel unit on the substrate.

3. The display panel according to claim 2, wherein: The plurality of pixel units include at least one first pixel unit and at least one second pixel unit; The distance between the center of the first pixel opening and the center of the third pixel opening of the first pixel unit is set to a first distance; The distance between the center of the first pixel opening and the center of the third pixel opening of the second pixel unit is set to a second distance; The first distance is set to be unequal to the second distance; The projections of the multiple fingerprint recognition sensors on the substrate substrate are arranged to be located within the projection of the non-opening area of ​​the first pixel unit on the substrate substrate; or, the projections of the multiple fingerprint recognition sensors on the substrate substrate are arranged to be located within the projection of the non-opening area of ​​the second pixel unit on the substrate substrate; or, the projections of the multiple fingerprint recognition sensors on the substrate substrate are arranged to be located within the projections of the non-opening areas of the first pixel unit and the second pixel unit on the substrate substrate.

4. The display panel according to claim 3, wherein: The projected edge of the non-opening area on the substrate includes a plurality of first edges connected end to end; The projected edge of the fingerprint recognition sensor on the substrate includes a plurality of second edges connected end to end; The first edge and the second edge are arranged in a one-to-one correspondence.

5. The display panel according to claim 4, wherein: At least one of the first edges is arranged parallel to the corresponding second edge, or At least one of the first edges and the corresponding second edge are arc-shaped and are concentrically arranged.

6. The display panel according to claim 3, wherein: A first light-emitting area is provided in the first pixel opening, and the first light-emitting area includes a second pattern and a third pattern connected to each other; The length of the second figure in the second direction is smaller than the length of the third figure in the second direction, or the area of ​​the second figure is smaller than the area of ​​the third figure, and the second direction is parallel to the base substrate.

7. The display panel according to claim 6, wherein: The second figure is set to be a semicircle, the third figure is set to be a semi-ellipse, and the straight edge of the second figure corresponds to the straight edge of the third figure.

8. The display panel according to claim 3, wherein: In the opening area, the first pixel opening, one of the second pixel openings, the third pixel opening and another of the second pixel openings are arranged in sequence around the circumference of the non-opening area; A line connecting the center of the first pixel opening and the centers of the two second pixel openings is arranged to form a first figure with a line connecting the third pixel opening and the centers of the two second pixel openings, and the first figure is arranged to be a quadrilateral.

9. The display panel according to claim 8, wherein: The first figure is configured as an irregular trapezoid having at least one right angle.

10. The display panel according to claim 8, wherein: In the opening area of ​​the first pixel unit, the distance between the center of the first pixel opening and the centers of the two second pixel openings is equal, and the distance between the center of the third pixel opening and the centers of the two second pixel openings is not equal.

11. The display panel according to claim 8, wherein: In the opening area of ​​the second pixel unit, the distance between the center of the first pixel opening and the centers of the two second pixel openings is set to L1, and the distance between the center of the third pixel opening and the centers of the two second pixel openings is equal.

12. The display panel according to claim 11, wherein: The plurality of pixel units further include at least one third pixel unit; In the opening area of ​​the third pixel unit, the distance between the center of the first pixel opening and the centers of the two second pixel openings is set to L2, and the distance between the center of the third pixel opening and the centers of the two second pixel openings is equal, wherein L2<L1.

13. The display panel according to claim 8, wherein: A first light emitting area is provided in the first pixel opening, a second light emitting area is provided in the second pixel opening, and a third light emitting area is provided in the third pixel opening; The first light-emitting area is set as a red light-emitting area, the third light-emitting area is set as a blue light-emitting area, and the second light-emitting area is set as a green light-emitting area; An area of ​​the first pixel opening is smaller than an area of ​​the third pixel opening and larger than an area of ​​the second pixel opening.

14. The display panel according to any one of claims 2 to 13, wherein: The arrangement density of the fingerprint recognition sensor is set to P1, the pixel density of multiple pixel units is set to P2, and the ratio of P1 to P2 is set to 0.5 to 1.

15. A display device, wherein: Comprising the display panel as claimed in any one of claims 1 to 14.

Images