Display panel and display device

Abstract

The application discloses a display panel and a display device. The display panel comprises a display area, at least part of the display area is a sensor area, and the display panel comprises a black matrix layer. The part of the sensor area is provided with a plurality of first opening rows in a first direction. The first opening rows comprise a plurality of first openings arranged in a second direction. The first direction intersects the second direction. In the first direction, the interval between two adjacent first opening rows is a first interval. In the second direction, the interval between two adjacent first openings is a second interval. The first interval is equal to the second interval. The application can improve the display effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display panel and a display device. BACKGROUND

[0002] On a daily use smartphone, in addition to the obvious components such as screen, camera, earpiece, etc., there are usually some small holes hidden above the screen of the phone. For example, the light sensor hole is another common small hole, which is responsible for detecting the light intensity of the surrounding environment. According to the change of light intensity, the phone can automatically adjust the screen brightness to save power and protect the user's eyesight. The light sensor hole is usually located at the edge position above the screen of the phone, which is closely attached to the screen. Some phones are also equipped with infrared sensor holes for implementing advanced functions such as face recognition, gesture recognition, etc. The infrared sensor can capture the facial features or gesture actions of the user and process them through algorithms. This technology makes the phone more convenient and secure in scenarios such as unlocking and payment.

[0003] In order to make the external light reach the light sensor or infrared sensor, an opening design is usually made on the black matrix layer (BM) of the traditional display panel. However, the distance between the adjacent two openings on the black matrix layer of the traditional display panel is different in different directions. After the external light enters one opening, it will be reflected by the metal film layer inside the display panel and exit the display panel from the adjacent opening of the opening. However, due to the different distances between the adjacent two openings in different directions, the light reflected from the adjacent openings in different directions is inconsistent after the external light in different directions enters the opening, resulting in visual differences of the opening under different observation angles. When the user uses it, this visual difference will be perceived by the human eye, thereby affecting the display effect.

[0004] Therefore, it is necessary to propose a new technical solution to solve the above technical problems. SUMMARY

[0005] The purpose of the present application is to provide a display panel and a display device, which can improve the display effect.

[0006] To solve the above problems, the technical scheme of the present application is as follows:

[0007] In a first aspect, the present application provides a display panel, comprising a display area, at least part of the display area being a sensor area, the display panel comprising:

[0008] a black matrix layer, the black matrix layer being located in the sensor area and being provided with a plurality of first opening rows in the first direction, the first opening row comprising a plurality of first openings arranged in the second direction;

[0009] The first direction intersects the second direction.

[0010] In the first direction, a distance between two adjacent rows of the first openings is a first distance.

[0011] In the second direction, a distance between two adjacent first openings is a second distance.

[0012] The first distance is equal to the second distance.

[0013] In an embodiment of the present application, the first direction is perpendicular to the second direction.

[0014] In a plan view of the display panel, the pattern of the first openings has a first axis of symmetry, the pattern of the first openings is a pattern symmetrical about the first axis of symmetry, and the first axis of symmetry extends along the first direction.

[0015] In an embodiment of the present application, in a plan view of the display panel, the pattern of the first openings further has a second axis of symmetry, the pattern of the first openings is a pattern symmetrical about the second axis of symmetry.

[0016] The second axis of symmetry extends along the second direction, and the first axis of symmetry intersects the second axis of symmetry.

[0017] In an embodiment of the present application, in a plan view of the display panel, a length of the first axis of symmetry along the first direction in an overlapping part of the pattern of the first openings is a first length, and a length of the second axis of symmetry along the second direction in the overlapping part of the pattern of the first openings is a second length, and the first length is equal to the second length.

[0018] In an embodiment of the present application, the display panel further comprises:

[0019] a substrate;

[0020] a cathode layer disposed on one side of the substrate; and

[0021] an encapsulation layer disposed on a side of the cathode layer distal to the substrate, the black matrix layer disposed on a side of the encapsulation layer distal to the cathode layer, and the first openings exposing a portion of the encapsulation layer;

[0022] In a first cross-sectional view of the display panel extending in a direction perpendicular to a plane on which the substrate is located and along an extension direction of the first symmetry axis, the first opening includes two first side walls oppositely arranged along the first direction, in one of the first openings, a spacing between the two first side walls is a third spacing, the third spacing of two adjacent first openings arranged along the first direction is equal, and a length of the third spacing is the first length;

[0023] In a second cross-sectional view of the display panel extending in a direction perpendicular to a plane on which the substrate is located and along an extension direction of the second symmetry axis, the first opening includes two second side walls oppositely arranged along the second direction, in one of the first openings, a spacing between the two second side walls is a fourth spacing, the fourth spacing of two adjacent first openings arranged along the second direction is equal, and a length of the fourth spacing is the second length;

[0024] The third spacing is equal to the fourth spacing.

[0025] In an embodiment of the present application, the first symmetry axis and the second symmetry axis intersect at a center point of a pattern of the first openings, and the pattern of the first openings is a symmetric pattern about the center point.

[0026] In an embodiment of the present application, the pattern of the first openings is one of a circle, a rhombus, and an even-numbered regular polygon.

[0027] In an embodiment of the present application, the display panel further includes a plurality of first filter blocks, a plurality of second filter blocks, a plurality of third filter blocks, and a plurality of fourth filter blocks.

[0028] The black matrix layer is located in the part of the sensor region, and the part of the sensor region is further provided with a plurality of first filter holes, a plurality of second filter holes, a plurality of third filter holes, and a plurality of fourth filter holes, the first filter block is arranged in the first filter hole, the second filter block is arranged in the second filter hole, the third filter block is arranged in the third filter hole, and the fourth filter block is arranged in the fourth filter hole.

[0029] In a plan view of the display panel, a periphery of one of the first openings is arranged with one of the first filter holes, one of the second filter holes, one of the third filter holes, and one of the fourth filter blocks.

[0030] In an embodiment of the present application, one of the first openings and one of the first filter holes, one of the second filter holes, one of the third filter holes, and one of the fourth filter blocks located at the periphery of the first opening form a repeating unit.

[0031] A plurality of the repeating units are arranged at intervals in the second direction on the sensor region, forming a repeating unit row, and a plurality of the repeating unit rows are arranged at intervals in the first direction on the sensor region.

[0032] In an embodiment of the present application, in the first direction, the interval between two adjacent repeating unit rows is a fifth interval;

[0033] In the second direction, the interval between two adjacent repeating units is a sixth interval.

[0034] The fifth interval is equal to the sixth interval.

[0035] In an embodiment of the present application, in one of the repeating units,

[0036] In a plan view of the display panel, the minimum interval between the edge of the first opening and the edge of the first light filtering hole is a seventh interval, the minimum interval between the edge of the first opening and the edge of the second light filtering hole is an eighth interval, the minimum interval between the edge of the first opening and the edge of the third light filtering hole is a ninth interval, and the minimum interval between the edge of the first opening and the edge of the fourth light filtering hole is a tenth interval.

[0037] The seventh interval, the eighth interval, the ninth interval, and the tenth interval are equal.

[0038] In an embodiment of the present application, in a plan view of the display panel,

[0039] The first light filtering hole and the second light filtering hole are located on both sides of the first opening in the first direction, the aperture of the first light filtering hole is smaller than the aperture of the second light filtering hole, the color of the first light filtering block is a first color, and the color of the second light filtering block is a second color.

[0040] The third light filtering hole and the fourth light filtering hole are located on both sides of the first opening in the second direction, the aperture of the third light filtering hole is equal to the aperture of the fourth light filtering hole, the color of the third light filtering block is a third color, and the color of the fourth light filtering block is a third color.

[0041] The aperture of the third light filtering hole is smaller than the aperture of the first light filtering hole, and the first color, the second color, and the third color are different from each other.

[0042] In a second aspect, the present application provides a display device, comprising a display panel, the display panel comprising a display area, at least part of the display area being a sensor area, the display panel comprising a black matrix layer, the black matrix layer being provided with a plurality of first opening rows in the first direction in the part of the sensor area, the first opening rows comprising a plurality of first openings arranged in the second direction; the first direction intersects the second direction; in the first direction, the distance between two adjacent first opening rows is a first distance; in the second direction, the distance between two adjacent first openings is a second distance; the first distance is equal to the second distance.

[0043] In an embodiment of the present application, the display device further comprises a light sensor, the orthogonal projection of the light sensor on the display panel is located in the sensor area, and a plurality of the first openings are arranged correspondingly with the light sensor; or,

[0044] The display device further comprises an infrared sensor, the orthogonal projection of the infrared sensor on the display panel is located in the sensor area, and a plurality of the first openings are arranged correspondingly with the infrared sensor.

[0045] In the present application, the part of the black matrix layer in the sensor area is provided with a plurality of first openings arranged in the first direction, for one first opening, the distance between the first opening and another first opening adjacent to the first opening in the first direction and the distance between the first opening and another first opening adjacent to the first opening in the second direction are equal. After the external light in different directions enters the first opening, the light reflected from the first opening and another first opening adjacent to the first opening in the first direction and the light reflected from the first opening and another first opening adjacent to the first opening in the second direction are consistent, which reduces the visual difference when the user uses the display device and improves the display effect. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 is a plan view of a conventional display panel;

[0047] Figure 2 is Figure 1 is a sectional view of the B-B' cross-section line of the conventional display panel shown in FIG. 1;

[0048] Figure 3 is Figure 1 is a sectional view of the C-C' cross-section line of the conventional display panel shown in FIG. 1;

[0049] Figure 4 is a schematic view of an embodiment of the display panel of the present application;

[0050] Figure 5 is a schematic view of an embodiment of the display panel of the present application;

[0051] Figure 6is Figure 5 A cross-sectional view of the display panel of the present application along the D-D' cross-sectional line shown in FIG. 1 1 is shown in FIG. 1 1 1 ;

[0052] Figure 7 is Figure 5 A cross-sectional view of the display panel of the present application along the E-E' cross-sectional line shown in FIG. 1 1 is shown in FIG. 1 1 2;

[0053] Figure 8 is a schematic view of an embodiment of the display panel of the present application;

[0054] Figure 9 is a schematic view of an embodiment of the display panel of the present application;

[0055] Figure 10 is Figure 9 A cross-sectional view of the display panel of the present application along the F-F' cross-sectional line shown in FIG. 1 1 is shown in FIG. 1 1 3;

[0056] Figure 11 is Figure 9 A cross-sectional view of the display panel of the present application along the G-G' cross-sectional line shown in FIG. 1 1 is shown in FIG. 1 1 4;

[0057] Figure 12 is Figure 9 A schematic view of the repeat unit of the present application shown in FIG. 1 1 is shown in FIG. 1 1 5;

[0058] Figure 13 is a schematic view of a first embodiment of the display panel of the present application;

[0059] Figure 14 is a schematic view of a second embodiment of the display panel of the present application;

[0060] Figure 15 is Figure 14 A cross-sectional view of the second embodiment of the display panel of the present application along the H-H' cross-sectional line shown in FIG. 1 1 is shown in FIG. 1 1 6;

[0061] Figure 16 is Figure 14 A cross-sectional view of the second embodiment of the display panel of the present application along the I-I' cross-sectional line shown in FIG. 1 1 is shown in FIG. 1 1 7;

[0062] Figure 17 is a schematic view of a third embodiment of the display panel of the present application;

[0063] Figure 18 is a schematic view of a third embodiment of the display panel of the present application;

[0064] Figure 19 is a schematic view of a third embodiment of the display panel of the present application. DETAILED DESCRIPTION

[0065] The meanings of the terms used in the specification and claims correspond to the meanings commonly understood by those of ordinary skill in the art to which the present application pertains. The terms used in the specification and claims are only for the purpose of facilitating the description and understanding of the present application, and are not intended to limit the present application to the narrow interpretation of the specific terms used in the specification and claims.

[0066] Referring to Figure 1 The conventional display panel 100' includes a sensor area SA. The conventional display panel 100' includes a black matrix layer 10', an encapsulation layer 20', and a cathode layer 30'. The black matrix layer 10' is provided with a plurality of openings K1' in a portion of the sensor area SA. After external light rays enter the opening K1', the external light rays pass through the encapsulation layer 20' and are reflected by the cathode layer 30'. The pitch L2' of two adjacent openings K1' in the first direction Y is different from the pitch L1' of two adjacent openings K1' in the second direction X.

[0067] For example, the pitch L2' of two adjacent openings K1' in the first direction Y is greater than the pitch L1' of two adjacent openings K1' in the second direction X.

[0068] Referring to Figure 2 After a beam of external light rays S1' enters one opening K1' in the second direction X, the light rays S1' pass through the encapsulation layer 20' to the cathode layer 30' and are reflected by the surface of the cathode layer 30' and exit from the adjacent opening K1' with a pitch L1'.

[0069] Referring to Figure 3 After a beam of external light rays S2' enters the same opening K1' in the first direction Y, the light rays S2' pass through the encapsulation layer 20' to the cathode layer 30' and are reflected by the surface of the cathode layer 30' and cannot exit from the adjacent opening K1' with a pitch L2'. This is because the pitch L2' of two adjacent openings K1' in the first direction Y is greater than the pitch L1' of two adjacent openings K1' in the second direction X. The reflected light rays S2' reach the portion of the surface of the black matrix layer 10' where no opening is provided, and the reflected light rays S2' are absorbed by the black matrix, so that the reflected light rays S2' cannot exit from the adjacent opening K1' with a pitch L2'.

[0070] In the conventional display panel 100', the light rays reflected by the adjacent openings K1' in different directions are inconsistent after the external light rays in different directions enter the opening K1', resulting in visual differences of the opening K1' under different observation angles. When a user uses the display panel 100', the visual differences are perceived by the human eye, thereby affecting the display effect.

[0071] The present application provides a display device. The display device can be a tablet computer, an e-reader, an electronic display screen, a notebook computer, a mobile phone, an augmented reality (AR) or virtual reality (VR) device, a media player, a wearable device, a digital camera, a car navigation device, etc. The display device comprises a display panel 100.

[0072] Optionally, the display device further comprises a light sensor. A normal projection of the light sensor on the display panel is located in the sensor region. The plurality of first openings are arranged corresponding to the light sensor. The light sensor is configured to detect an ambient light intensity.

[0073] Optionally, the display device further comprises an infrared sensor. A normal projection of the infrared sensor on the display panel is located in the sensor region. The plurality of first openings are arranged corresponding to the infrared sensor. The infrared sensor is configured to detect infrared radiation.

[0074] The present application provides a display panel 100. The display panel 100 can be an organic light emitting diode (OLED) display panel 100, a micro light emitting diode (Micro LED) display panel 100, a mini light emitting diode (Mini LED) display panel 100, or a liquid crystal display (LCD) panel 100.

[0075] To avoid redundancy, embodiments of the present application are described by taking an organic light emitting diode display panel 100 as an example.

[0076] Referring to Figure 4 , the display panel 100 comprises a display area AA. At least part of the display area AA is a sensor region SA.

[0077] Referring to Figure 5 , the display panel 100 comprises a black matrix layer 10. The black matrix layer 10 is located in the sensor region SA. In the first direction Y, the black matrix layer 10 is arranged with a plurality of first opening rows 11 at intervals. The first opening row 11 comprises a plurality of first openings K1 arranged at intervals in the second direction X. The first direction Y intersects the second direction X.

[0078] In the first direction Y, the distance between the adjacent two first opening rows 11 is a first distance L1.

[0079] In the second direction X, the distance between two adjacent first openings K1 is a second distance L2. The first distance L1 is equal to the second distance L2.

[0080] In the embodiment, the first distance L1 and the second distance L2 are both defined as the minimum length of the black matrix layer 10 between two adjacent first openings K1.

[0081] The display panel 100 further comprises a substrate 40, a cathode layer 30, and an encapsulation layer 20. The cathode layer 30 is arranged on one side of the substrate 40. The encapsulation layer 20 is arranged on a side of the cathode layer 30 away from the substrate 40. The black matrix layer 10 is arranged on a side of the encapsulation layer 20 away from the cathode layer 30. The first opening K1 exposes a part of the encapsulation layer 20.

[0082] Referring to Figure 6 After a beam of external light S1 is incident on a first opening K1 along the first direction Y, the light S1 passes through the encapsulation layer 20 to reach the cathode layer 30, is reflected by the surface of the cathode layer 30, and is emitted from the first opening K1 adjacent to the first opening K1 in the first direction Y with a first distance L1.

[0083] Referring to Figure 7 After a beam of external light S2 is incident on a first opening K1 along the second direction X, the light S2 passes through the encapsulation layer 20 to reach the cathode layer 30, is reflected by the surface of the cathode layer 30, and is emitted from the first opening K1 adjacent to the first opening K1 in the second direction X with a second distance L2.

[0084] Since the first distance L1 is equal to the second distance L2, the light emitted from the first opening K1 in different directions is consistent, which can reduce the visual difference of the first opening K1 in different observation angles, thereby reducing the visual difference of the user in use and improving the display effect.

[0085] In the embodiment, the part of the black matrix layer 10 located in the sensor region SA is provided with a plurality of first openings K1 arranged at intervals in the first direction Y. For a first opening K1, the distance between the first opening K1 and another first opening K1 adjacent to the first opening K1 in the first direction Y and the distance between the first opening K1 and another first opening K1 adjacent to the first opening K1 in the second direction X are equal. After a beam of external light is incident on the first opening K1 in different directions, the light emitted from the first opening K1 and the first opening K1 adjacent to the first opening K1 in the first direction Y and the first opening K1 adjacent to the first opening K1 in the second direction X is consistent, which reduces the visual difference of the user in use and improves the display effect.

[0086] Optionally, the first direction Y is perpendicular to the second direction X.

[0087] The first distance and the second distance are both in the range of 30 microns to 60 microns.

[0088] The first interval and the second interval are one of 30 microns, 31 microns, 32 microns, 33 microns, 34 microns, 35 microns, 36 microns, 37 microns, 38 microns, 39 microns, 40 microns, 41 microns, 42 microns, 43 microns, 44 microns, 45 microns, 46 microns, 47 microns, 48 microns, 49 microns, 50 microns, 51 microns, 52 microns, 53 microns, 54 microns, 55 microns, 56 microns, 57 microns, 58 microns, 59 microns, and 60 microns.

[0089] Referring to Figure 8 Optionally, the display panel 100 further comprises a plurality of first light filtering blocks 51, a plurality of second light filtering blocks 52, a plurality of third light filtering blocks 53, and a plurality of fourth light filtering blocks 54.

[0090] The part of the black matrix layer 10 located in the sensor area SA is further provided with a plurality of first light filtering holes H1, a plurality of second light filtering holes H2, a plurality of third light filtering holes H3, and a plurality of fourth light filtering holes H4. The first light filtering block 51 is arranged in the first light filtering hole H1. The second light filtering block 52 is arranged in the second light filtering hole H2. The third light filtering block 53 is arranged in the third light filtering hole H3. The fourth light filtering block 54 is arranged in the fourth light filtering hole H4.

[0091] In the plan view of the display panel 100, the periphery of one first opening K1 is spaced apart from one first light filtering hole H1, one second light filtering hole H2, one third light filtering hole H3, and one fourth light filtering hole H4.

[0092] The first opening K1, the first light filtering hole H1, the second light filtering hole H2, the third light filtering hole H3, and the fourth light filtering hole H4 form a repeating unit 61.

[0093] A plurality of repeating units 61 are arranged in the sensor area SA along the second direction X to form a repeating unit row 60, and a plurality of repeating unit rows 60 are arranged in the sensor area SA along the first direction Y.

[0094] In this embodiment, by arranging light filtering holes in the black matrix layer 10 and arranging light filtering blocks in the light filtering holes, a design without polarizing sheets is achieved, and the production cost is reduced. At the same time, the first opening K1 is arranged between a plurality of light filtering blocks of the repeating unit 61, the interval between different light filtering blocks and the first opening K1 in the same repeating unit 61 is reduced, and after external light in different directions enters the first opening K1, the light emitted by the adjacent light filtering blocks of the first opening K1 is consistent, the visual difference during use of the user is reduced, and the display effect is improved.

[0095] Optionally, the display panel 100 further comprises a light-emitting layer 31 and an anode 32. The light-emitting layer 31 is arranged on the side of the cathode layer 30 away from the encapsulation layer 20, and the anode 32 is arranged on the side of the light-emitting layer 31 away from the cathode layer 30. One light-emitting layer 31 and one anode 32 correspond to one light-filtering block.

[0096] Referring to Figure 9 Optionally, in the first direction Y, the distance between two adjacent rows of the repeating units 60 is a fifth distance L5.

[0097] In the second direction X, the distance between two adjacent repeating units 61 is a sixth distance L6. The fifth distance L5 is equal to the sixth distance L6.

[0098] In this embodiment, the fifth distance L5 and the sixth distance L6 are both defined as the distance between the centers of two adjacent repeating units 61. The first opening K1 can or can not be located at the center of the repeating unit 61, which is not limited herein. To avoid redundancy, the first opening K1 is located at the center of the repeating unit 61 in the subsequent embodiments.

[0099] Referring to Figure 10 After a beam of external light S3 is incident on the first opening K1 of one repeating unit 61 in the first direction Y, the light S3 passes through the encapsulation layer 20 to reach the cathode layer 30, is reflected by the surface of the cathode layer 30, and is emitted from the first opening K1 of another repeating unit 61 adjacent to the first repeating unit 61 in the first direction Y with a fifth distance L5.

[0100] Referring to Figure 11 After a beam of external light S4 is incident on the first opening K1 of one repeating unit 61 in the second direction X, the light S4 passes through the encapsulation layer 20 to reach the cathode layer 30, is reflected by the surface of the cathode layer 30, and is emitted from the first opening K1 of another repeating unit 61 adjacent to the first repeating unit 61 in the second direction X with a sixth distance L6.

[0101] Since the fifth distance L5 is equal to the sixth distance L6, the light emitted from the first openings K1 of the adjacent repeating units 61 in different directions is consistent after the beams of external light in different directions are incident on the first opening K1 of the repeating unit 61. The visual difference of the repeating unit 61 under different observation angles can be reduced, thereby reducing the visual difference of the user during use and improving the display effect.

[0102] Referring to Figure 12 Optionally, in one repeating unit 61:

[0103] In the plan view of the display panel 100, the minimum distance between the edge of the first opening K1 and the edge of the first light filtering hole H1 is a seventh distance L7. The minimum distance between the edge of the first opening K1 and the edge of the second light filtering hole H2 is an eighth distance L8. The minimum distance between the edge of the first opening K1 and the edge of the third light filtering hole H3 is a ninth distance L9. The minimum distance between the edge of the first opening K1 and the edge of the fourth light filtering hole H4 is a tenth distance L10. The seventh distance L7, the eighth distance L8, the ninth distance L9, and the tenth distance L10 are equal.

[0104] After a beam of external light is incident on the first opening K1 of a repeating unit 61 along the first direction Y, the light passes through the encapsulation layer 20 to reach the cathode layer 30, is reflected by the surface of the cathode layer 30, and is emitted from the first light filtering hole H1 adjacent to the first light filtering hole H1 in the first direction Y with a seventh distance L7, the second light filtering hole H2 adjacent to the second light filtering hole H2 in the first direction Y with an eighth distance L8.

[0105] After a beam of external light is incident on the first opening K1 of a repeating unit 61 along the second direction X, the light passes through the encapsulation layer 20 to reach the cathode layer 30, is reflected by the surface of the cathode layer 30, and is emitted from the third light filtering hole H3 adjacent to the third light filtering hole H3 in the second direction X with a ninth distance L9, the fourth light filtering hole H4 adjacent to the fourth light filtering hole H4 in the second direction X with a tenth distance L10.

[0106] Since the seventh distance L7, the eighth distance L8, the ninth distance L9, and the tenth distance L10 are equal in a repeating unit 61, the light reflected by the first light filtering hole H1, the second light filtering hole H2, the third light filtering hole H3, and the fourth light filtering hole H4 adjacent to the first opening K1 of the repeating unit 61 is consistent after a beam of external light is incident on the first opening K1 of the repeating unit 61 in different directions. This can further reduce the visual difference of the repeating unit 61 under different observation angles, thereby further reducing the visual difference of the user during use and improving the display effect.

[0107] Optionally, the seventh distance, the eighth distance, the ninth distance, and the tenth distance are in the range of 5 to 20 microns.

[0108] The seventh distance, the eighth distance, the ninth distance, and the tenth distance are one of 5 microns, 6 microns, 7 microns, 8 microns, 9 microns, 10 microns, 11 microns, 12 microns, 13 microns, 14 microns, 15 microns, 16 microns, 17 microns, 18 microns, 19 microns, and 20 microns.

[0109] Optionally, in the plan view of the display panel:

[0110] The first filter hole H1 and the second filter hole H2 are located on both sides of the first opening in the first direction. The aperture of the first filter hole H1 is smaller than the aperture of the second filter hole H2. The color of the first filter block 51 is the first color. The color of the second filter block 52 is the second color.

[0111] The third filter hole H3 and the fourth filter hole H4 are located on both sides of the first opening in the second direction. The aperture of the third filter hole H3 is equal to the aperture of the fourth filter hole H4. The color of the third filter block 53 is the third color. The color of the fourth filter block 54 is the third color.

[0112] The aperture of the third filter hole H3 is smaller than the aperture of the first filter hole H1. The first color, the second color, and the third color are different from each other.

[0113] In the present embodiment, the first color is red, the second color is blue, and the third color is green. The first filter block 51 of red corresponds to the red light emitting device, the second filter block 52 of blue corresponds to the blue light emitting device, and the third filter block 53 and the fourth filter block 54 of green correspond to the green light emitting device.

[0114] In the organic light emitting diode, the light emitting efficiency of the green light emitting device is relatively low compared to the light emitting efficiency of other light emitting devices, so two green filter blocks and corresponding two green light emitting devices can be arranged in one repeating unit to improve the green light emitting efficiency of the display panel. In the organic light emitting diode, the light emitting efficiency of the blue light emitting device is lower than that of the red light emitting device, so a relatively small red light emitting device and a relatively large blue light emitting device can be arranged. And a relatively small red filter block and a relatively large blue filter block are arranged correspondingly, so as to improve the blue light emitting efficiency of the display panel.

[0115] Please refer to Figure 13 In the first embodiment of the present application:

[0116] Optionally, in the plan view of the display panel 100, the pattern of the first opening K1 has a first symmetry axis R1. The pattern of the first opening K1 is a pattern symmetrical about the first symmetry axis R1. The first symmetry axis R1 extends along the first direction Y.

[0117] In the present embodiment, the pattern of the first opening K1 is an axisymmetric pattern, and the first symmetry axis R1 extends along the first direction Y, which can ensure the symmetry of the first opening K1 in the second direction X, thereby improving the symmetry of the first opening K1, reducing the visual difference of the first opening K1 under different observation angles, avoiding that the visual difference is detected by the human eye when the user uses it, thereby improving the display effect.

[0118] Please refer to Figure 14 In the second embodiment of the present application:

[0119] To avoid redundancy, the second embodiment of the present application will describe different parts from the first embodiment of the present application.

[0120] Optionally, in the plan view of the display panel 100, the pattern of the first openings K1 also has a second symmetry axis R2. The pattern of the first openings K1 is a pattern symmetrical about the second symmetry axis R2. The second symmetry axis R2 extends along the second direction X. The first symmetry axis R1 intersects the second symmetry axis R2.

[0121] In the second embodiment of the present application, the pattern of the first openings K1 is a pattern symmetrical about both the first symmetry axis R1 and the second symmetry axis R2. Compared with the first embodiment of the present application, the second embodiment of the present application ensures the symmetry of the first openings K1 in the first direction Y, so that the symmetry of the first openings K1 can be further improved, and the visual difference of the first openings K1 under different observation angles can be further reduced, so that the display effect can be further improved.

[0122] Optionally, in the plan view of the display panel 100, the length of the overlapping part of the first symmetry axis R1 and the pattern of the first openings K1 along the first direction Y is a first length M1. The length of the overlapping part of the second symmetry axis R2 and the pattern of the first openings K1 along the second direction X is a second length M2.

[0123] Optionally, the first length M1 is in the range of 15 microns to 30 microns.

[0124] The first length M1 is one of 15 microns, 16 microns, 17 microns, 18 microns, 19 microns, 20 microns, 21 microns, 22 microns, 23 microns, 24 microns, 25 microns, 26 microns, 27 microns, 28 microns, 29 microns, and 30 microns.

[0125] Optionally, the first length M2 is in the range of 15 microns to 30 microns.

[0126] The second length M1 is one of 15 microns, 16 microns, 17 microns, 18 microns, 19 microns, 20 microns, 21 microns, 22 microns, 23 microns, 24 microns, 25 microns, 26 microns, 27 microns, 28 microns, 29 microns, and 30 microns.

[0127] Optionally, the first length M1 is equal to the second length M2.

[0128] When the first length M1 is equal to the second length M2, the symmetry of the first openings K1 can be further improved, and the visual difference of the first openings K1 under different observation angles can be further reduced, so that the display effect can be further improved.

[0129] Please refer toFigure 15 Optionally, in a first cross-sectional view of the display panel 100 extending in a direction perpendicular to the plane where the substrate 40 is located and along the extension direction of the first symmetry axis R1, the first opening K1 includes two first side walls K1a oppositely arranged along the first direction Y. In one first opening K1, the interval between the two first side walls K1a is a third interval L3. The third interval L3 of two first openings K1 adjacently arranged along the first direction Y is equal. The length of the third interval L3 is the first length M1.

[0130] Referring to Figure 16 In a second cross-sectional view of the display panel 100 extending in a direction perpendicular to the plane where the substrate 40 is located and along the extension direction of the second symmetry axis R2, the first opening K1 includes two second side walls K1b oppositely arranged along the second direction X. In one first opening K1, the interval between the two second side walls K1b is a fourth interval L4. The fourth interval L4 of two first openings K1 adjacently arranged along the second direction X is equal. The length of the fourth interval L4 is the second length M2. The third interval L3 is equal to the fourth interval L4.

[0131] Referring to Figure 15 After a bundle of external light S5 is incident on a first opening K1 along the first direction Y, the light passes through the encapsulation layer 20 to reach the cathode layer 30, is reflected by the surface of the cathode layer 30, and is emitted from the first opening K1 again.

[0132] Referring to Figure 16 After a bundle of external light S6 is incident on a first opening K1 along the second direction X, the light passes through the encapsulation layer 20 to reach the cathode layer 30, is reflected by the surface of the cathode layer 30, and is emitted from the first opening K1 again.

[0133] Since the third interval L3 is equal to the fourth interval L4 in one first opening K1, the light reflected from the same first opening K1 in different directions is consistent after a bundle of external light is incident on the first opening K1 in different directions, which can further improve the symmetry of the first opening K1, reduce the visual difference of the first opening K1 under different observation angles, and thus further reduce the visual difference of the user during use and improve the display effect.

[0134] In the third embodiment of the present application:

[0135] To avoid redundancy, the third embodiment of the present application will describe the different parts from the second embodiment of the present application.

[0136] Optionally, the first symmetry axis R1 and the second symmetry axis R2 intersect at the center point O of the pattern of the first opening K1, and the pattern of the first opening K1 is a pattern symmetrical about the center point O.

[0137] In the third embodiment of the present application, when the pattern of the first openings K1 is a central symmetric figure, the symmetry of the first openings K1 in different directions can be ensured, the symmetry of the first openings K1 can be further improved, the symmetry of the first openings K1 under different angles can be ensured, the visual difference of the first openings K1 under different observation angles can be reduced, and thus the visual difference of the user during use can be further reduced, and the display effect can be improved.

[0138] Please refer to Figure 17 Optionally, the pattern of the first openings K1 is a circle.

[0139] Please refer to Figure 18 Optionally, the pattern of the first openings K1 is a rhombus.

[0140] Please refer to Figure 19 Optionally, the pattern of the first openings K1 is one of regular polygons with even side length.

[0141] The specific embodiments of the present application are described in detail above. The above-described embodiments disclosed by the present application are only preferred embodiments of the present application. For those skilled in the art, without departing from the concept of the present application, many modifications and improvements can be made. These modifications and improvements fall within the scope of the claims of the present application.

Claims

1. A display panel comprising a display area, characterized in that At least part of the display area is a sensor area, and the display panel comprises: a black matrix layer, the black matrix layer is located in the part of the sensor area, a plurality of first opening rows are arranged at intervals in a first direction, and the first opening rows comprise a plurality of first openings arranged at intervals in a second direction; the first direction intersects the second direction; in the first direction, the distance between two adjacent first opening rows is a first distance; in the second direction, the distance between two adjacent first openings is a second distance; the first distance is equal to the second distance.

2. The display panel of claim 1, wherein, the first direction is perpendicular to the second direction; in a plan view of the display panel, the pattern of the first openings has a first axis of symmetry, the pattern of the first openings is a pattern symmetrical about the first axis of symmetry, and the first axis of symmetry extends in the first direction.

3. The display panel of claim 2, wherein, in a plan view of the display panel, the pattern of the first openings also has a second axis of symmetry, and the pattern of the first openings is a pattern symmetrical about the second axis of symmetry; wherein the second axis of symmetry extends in the second direction, and the first axis of symmetry intersects the second axis of symmetry.

4. The display panel of claim 3, wherein, in a plan view of the display panel, the length of the overlapping part of the first axis of symmetry and the pattern of the first openings in the first direction is a first length, and the length of the overlapping part of the second axis of symmetry and the pattern of the first openings in the second direction is a second length, and the first length is equal to the second length.

5. The display panel of claim 4, wherein, The display panel further comprises: a substrate; a cathode layer arranged on one side of the substrate; and an encapsulation layer arranged on the side of the cathode layer away from the substrate, the black matrix layer is arranged on the side of the encapsulation layer away from the cathode layer, and the first openings expose a part of the encapsulation layer; in a first cross-sectional view of the display panel extending in the extension direction of the first axis of symmetry and perpendicular to the plane in which the substrate is located, the first openings comprise two first side walls arranged opposite in the first direction, in one of the first openings, the distance between the two first side walls is a third distance, the third distance of two adjacent first openings arranged at intervals in the first direction is equal, and the length of the third distance is the first length; in a second cross-sectional view of the display panel extending in the extension direction of the second axis of symmetry and perpendicular to the plane in which the substrate is located, the first openings comprise two second side walls arranged opposite in the second direction, in one of the first openings, the distance between the two second side walls is a fourth distance, the fourth distance of two adjacent first openings arranged at intervals in the second direction is equal, and the length of the fourth distance is the second length; the third distance is equal to the fourth distance.

6. The display panel of claim 3, wherein, the first axis of symmetry and the second axis of symmetry intersect at a center point of the pattern of the first openings, and the pattern of the first openings is a pattern symmetrical about the center point.

7. The display panel of claim 6, wherein, the pattern of the first openings is one of a circle, a rhombus, and an even-sided regular polygon.

8. The display panel of any one of claims 1-7, wherein, The display panel further comprises a plurality of first light filtering blocks, a plurality of second light filtering blocks, a plurality of third light filtering blocks and a plurality of fourth light filtering blocks; The part of the black matrix layer located in the sensor region is further provided with a plurality of first light filtering holes, a plurality of second light filtering holes, a plurality of third light filtering holes and a plurality of fourth light filtering holes, the first light filtering block is arranged in the first light filtering hole, the second light filtering block is arranged in the second light filtering hole, the third light filtering block is arranged in the third light filtering hole, and the fourth light filtering block is arranged in the fourth light filtering hole; In the plan view of the display panel, one side of the first opening is provided with one first light filtering hole, one second light filtering hole, one third light filtering hole and one fourth light filtering block; The first opening, the first light filtering hole, the second light filtering hole, the third light filtering hole and the fourth light filtering hole form a repeating unit. A plurality of repeating units are arranged in the second direction in the sensor region to form a repeating unit row, and a plurality of repeating unit rows are arranged in the first direction in the sensor region.

9. The display panel of claim 8, wherein, In the first direction, the distance between two adjacent repeating unit rows is a fifth distance; In the second direction, the distance between two adjacent repeating units is a sixth distance; The fifth distance is equal to the sixth distance.

10. The display panel of claim 9, wherein, In one repeating unit, In the plan view of the display panel, the minimum distance between the edge of the first opening and the edge of the first light filtering hole is a seventh distance, the minimum distance between the edge of the first opening and the edge of the second light filtering hole is an eighth distance, the minimum distance between the edge of the first opening and the edge of the third light filtering hole is a ninth distance, and the minimum distance between the edge of the first opening and the edge of the fourth light filtering hole is a tenth distance; The seventh distance, the eighth distance, the ninth distance and the tenth distance are equal.

11. The display panel of claim 8, wherein, In the plan view of the display panel, The first light filtering hole and the second light filtering hole are located on both sides of the first opening in the first direction, the aperture of the first light filtering hole is smaller than the aperture of the second light filtering hole, the color of the first light filtering block is a first color, and the color of the second light filtering block is a second color; The third light filtering hole and the fourth light filtering hole are located on both sides of the first opening in the second direction, the aperture of the third light filtering hole is equal to the aperture of the fourth light filtering hole, the color of the third light filtering block is a third color, and the color of the fourth light filtering block is a third color; The aperture of the third light filtering hole is smaller than the aperture of the first light filtering hole, and the first color, the second color and the third color are different.

12. A display device, characterized by comprising: The display panel comprises any one of claims 1-11.

13. The display device of claim 12, wherein, The display device further comprises a light sensor, the orthogonal projection of the light sensor on the display panel is located in the sensor region, and a plurality of first openings are arranged corresponding to the light sensor; or The display device further comprises a light sensor, the orthogonal projection of the light sensor on the display panel is located in the sensor region, and a plurality of first openings are arranged corresponding to the light sensor; or The display device further comprises an infrared sensor, a normal projection of the display panel on the infrared sensor is located in the sensor region, and a plurality of the first openings are arranged correspondingly with the infrared sensor.

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