Display panel and display device

Abstract

The invention 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, the display panel comprises a black matrix layer, and the part, located in the sensor area, of the black matrix layer is provided with a plurality of first opening rows at intervals in the first direction; the first opening row comprises a plurality of first openings which are arranged at intervals in the second direction; the first direction intersects with the second direction; in the first direction, the distance between every two adjacent first opening rows is a first distance; in the second direction, the distance between every two adjacent first openings is a second distance; the first spacing is equal to the second spacing. The display effect can be improved.

Description

Technical Field

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

[0002] In daily use of smartphones, in addition to the obvious parts such as the screen, camera, and earpiece, there are usually some small holes hidden above the screen. 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 mobile 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 above the mobile phone screen and fits tightly with the screen. Some mobile phones are also equipped with infrared sensor holes for advanced functions such as face recognition and gesture recognition. Infrared sensors can capture the user's facial features or gestures, and recognize and process them through algorithms. This technology makes mobile phones more convenient and safer in scenarios such as unlocking and payment.

[0003] In order to allow external light to reach the light sensor or infrared sensor, an opening is usually designed on the black matrix layer (Black Matrix, BM) of a traditional display panel. However, the spacing between two adjacent openings on the black matrix layer of a traditional display panel in different directions is different. After the external light enters an opening, it will be reflected by the metal film layer inside the display panel and emitted from the opening adjacent to the opening. However, since the spacing between two adjacent openings in different directions is different, after the external light from different directions enters the opening, the light reflected from the adjacent openings in different directions is inconsistent, causing the opening to have visual differences at different observation angles. When the user uses it, this visual difference will be noticed 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 of the invention

[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 solution of this application is as follows:

[0007] In a first aspect, the present application proposes a display panel, including a display area, at least a portion of the display area is a sensor area, and the display panel includes:

[0008] A black matrix layer, wherein a portion of the black matrix layer located in the sensor area is provided with a plurality of first opening rows spaced apart in a first direction, and the first opening rows include a plurality of first openings spaced apart in a second direction;

[0009] The first direction intersects the second direction;

[0010] In the first direction, the distance between two adjacent first opening rows is a first distance;

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

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

[0013] In one 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 symmetry axis, the pattern of the first openings is a pattern symmetrical about the first symmetry axis, and the first symmetry axis extends along the first direction.

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

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

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

[0018] In one embodiment of the present application, the display panel further includes:

[0019] 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 away from the substrate, the black matrix layer is disposed on a side of the encapsulation layer away from the cathode layer, and the first opening exposes a portion of the encapsulation layer;

[0022] In a first cross-sectional view of the display panel perpendicular to the plane where the substrate is located and extending along the extension direction of the first symmetry axis, the first opening includes two first side walls arranged opposite to each other along the first direction, and in one of the first openings, the interval between the two first side walls is a third interval, the third interval between two adjacent first openings arranged at intervals along the first direction is equal, and the length of the third interval is the first length;

[0023] In a second cross-sectional view of the display panel perpendicular to the plane where the substrate is located and extending along the extension direction of the second symmetry axis, the first opening includes two second side walls arranged opposite to each other along the second direction, and in one of the second openings, the interval between the two second side walls is a fourth interval, the fourth interval between two adjacent first openings arranged at intervals along the second direction is equal, and the length of the fourth interval is the second length;

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

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

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

[0027] In one 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 portion of the black matrix layer located in the sensor area 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, one of the first openings is provided 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 at intervals;

[0030] Wherein, 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 holes located around the first opening form a repeating unit;

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

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

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

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

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

[0036] In the plan view of the display panel, the minimum distance between the edge of the first opening and the edge of the first filter hole is the seventh distance, the minimum distance between the edge of the first opening and the edge of the second filter hole is the eighth distance, the minimum distance between the edge of the first opening and the edge of the third filter hole is the ninth distance, and the minimum distance between the edge of the first opening and the edge of the fourth filter hole is the tenth distance;

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

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

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

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

[0041] The aperture of the third filter hole is smaller than the aperture of the first filter hole, and the first color, the second color and the third color are different.

[0042] In the second aspect, the present application proposes a display device, including a display panel, the display panel including a display area, at least a portion of the display area being a sensor area, the display panel including a black matrix layer, the portion of the black matrix layer located in the sensor area having a plurality of first opening rows spaced apart in a first direction, the first opening rows including a plurality of first openings spaced apart along a second direction; the first direction intersects with the second direction; in the first direction, a spacing between two adjacent first opening rows is a first spacing; in the second direction, a spacing between two adjacent first openings is a second spacing; the first spacing is equal to the second spacing.

[0043] In one embodiment of the present application, the display device further includes a light sensor, the orthographic projection of the light sensor on the display panel is located in the sensor area, and the plurality of first openings are arranged corresponding to the light sensor; or,

[0044] The display device further includes an infrared sensor, the orthographic projection of the infrared sensor on the display panel is located within the sensor area, and the plurality of first openings are arranged corresponding to the infrared sensor.

[0045] In the present application, the portion of the black matrix layer located in the sensor area is provided with a plurality of first openings spaced apart in the first direction, and for one first opening, the first opening is spaced equally from another first opening adjacent to the first direction and another first opening adjacent to the second direction. After external light from different directions enters the first opening, the light reflected from another first opening adjacent to the first opening in the first direction and another first opening adjacent to the first opening in the second direction is consistent, which reduces visual differences when used by users and improves display effects. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0047] Figure 2 yes Figure 1 A cross-sectional view of a conventional display panel taken along a BB' section line;

[0048] Figure 3 yes Figure 1 A cross-sectional view of a conventional display panel taken along a CC' cross-sectional line;

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

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

[0051] Figure 6yes Figure 5 A cross-sectional view of the display panel of the present application taken along the DD' cross-sectional line;

[0052] Figure 7 yes Figure 5 A cross-sectional view of the display panel of the present application taken along the EE' section line;

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

[0054] Fig. 9 is a schematic diagram of an embodiment of a display panel of the present application;

[0055] Fig.10 yes Fig. 9 A cross-sectional view of the display panel of the present application taken along the FF' section line;

[0056] Fig.11 yes Fig. 9 A cross-sectional view of the display panel of the present application taken along the G-G' cross-sectional line;

[0057] Fig.12 yes Fig. 9 A schematic diagram of the repeating unit of the present application is shown;

[0058] Fig.13 is a schematic diagram of a first embodiment of a display panel of the present application;

[0059] Fig.14 is a schematic diagram of a second embodiment of a display panel of the present application;

[0060] Fig.15 yes Fig.14 A cross-sectional view taken along the HH' section line of the second embodiment of the display panel of the present application is shown;

[0061] Fig.16 yes Fig.14 A cross-sectional view taken along the II' section line of the second embodiment of the display panel of the present application is shown;

[0062] Fig.17 is a schematic diagram of a third embodiment of a display panel of the present application;

[0063] Fig.18 is a schematic diagram of a third embodiment of a display panel of the present application;

[0064] Fig.19 It is a schematic diagram of the third embodiment of the display panel of the present application. DETAILED DESCRIPTION

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

[0066] See also 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'. A plurality of openings K1' are provided in the portion of the black matrix layer 10' located in the sensor area SA. After external light enters the opening K1', it passes through the encapsulation layer 20' and is reflected by the cathode layer 30'. Among them, the spacing L2' between two adjacent openings K1' in the first direction Y is different from the spacing L1' between two adjacent openings K1' in the second direction X.

[0067] The example in which the interval L2 ′ between two adjacent openings K1 ′ in the first direction Y is greater than the interval L1 ′ between two adjacent openings K1 ′ in the second direction X is used for description.

[0068] See also Figure 2 After a beam of external light S1' is incident on an opening K1' along the second direction X, the light S1' passes through the encapsulation layer 20' and reaches the cathode layer 30', and is reflected by the surface of the cathode layer 30' and emitted from the adjacent opening K1' with a spacing of L1'.

[0069] See also Figure 3 , after a beam of external light S2' is incident on the same opening K1' along the first direction Y, the light S2' passes through the encapsulation layer 20' and reaches the cathode layer 30', and is reflected by the surface of the cathode layer 30', and cannot be emitted from the adjacent openings K1' with a spacing of L2'. This is because the spacing between two adjacent openings K1' in the first direction Y is L2', which is greater than the spacing L1' between two adjacent openings K1' in the second direction X. The light S2' reflected by the cathode layer 30' reaches the portion of the surface of the black matrix layer 10' where no opening is set, and the reflected light S2' will be absorbed by the black matrix layer, resulting in the reflected light S2' being unable to be emitted from the adjacent openings K1' with a spacing of L2'.

[0070] In the conventional display panel 100', after external light from different directions enters the opening K1', the light reflected from adjacent openings K1' in different directions is inconsistent, resulting in visual differences in the opening K1' at different viewing angles. When used by users, such visual differences will be noticed by the human eye, thereby affecting the display effect.

[0071] The present application proposes a display device, which may be a tablet computer, an electronic reader, an electronic display screen, a laptop 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 system, etc. The display device includes a display panel 100 .

[0072] Optionally, the display device further includes a light sensor. The orthographic projection of the light sensor on the display panel is located in the sensor area. The plurality of first openings are arranged corresponding to the light sensor. The light sensor is used to detect the intensity of ambient light.

[0073] Optionally, the display device further includes an infrared sensor. The orthographic projection of the infrared sensor on the display panel is located in the sensor area, and the plurality of first openings are arranged corresponding to the infrared sensor. The infrared sensor is used to detect infrared radiation.

[0074] The present application proposes a display panel 100. The display panel 100 may be an organic light emitting diode (OLED) display panel 100, a micro light emitting diode (MicroLED) display panel 100, a sub-millimeter light emitting diode (Mini LED) display panel 100, or a liquid crystal display panel 100 (LCD).

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

[0076] See also Figure 4 The display panel 100 includes a display area AA. At least a portion of the display area AA is a sensor area SA.

[0077] See also Figure 5 The display panel 100 includes a black matrix layer 10. A portion of the black matrix layer 10 located in the sensor area SA is provided with a plurality of first opening rows 11 spaced apart in a first direction Y. The first opening row 11 includes a plurality of first openings K1 spaced apart along a second direction X. The first direction Y intersects the second direction X.

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

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

[0080] In this embodiment, the first interval L1 and the second interval 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 includes a substrate 40, a cathode layer 30 and an encapsulation layer 20. The cathode layer 30 is disposed on one side of the substrate 40. The encapsulation layer 20 is disposed on a side of the cathode layer 30 away from the substrate 40. The black matrix layer 10 is disposed on a side of the encapsulation layer 20 away from the cathode layer 30. The first opening K1 exposes a portion of the encapsulation layer 20.

[0082] See also 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 and reaches the cathode layer 30, is reflected by the surface of the cathode layer 30, and is emitted from the first openings K1 adjacent to each other in the first direction Y and spaced apart by a first spacing L1.

[0083] See also 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 and reaches the cathode layer 30, is reflected by the surface of the cathode layer 30, and is emitted from the first openings K1 adjacent to each other in the second direction X and spaced apart by a second spacing L2.

[0084] Since the first spacing L1 is equal to the second spacing L2, after external light from different directions is incident on the first opening K1, the light reflected from adjacent first openings K1 in different directions is consistent, which can reduce the visual difference of the first opening K1 at different observation angles, thereby reducing the visual difference when the user uses it and improving the display effect.

[0085] In this embodiment, the portion of the black matrix layer 10 located in the sensor area SA is provided with a plurality of first openings K1 spaced apart in the first direction Y. For one first opening K1, the first opening K1 is spaced equally from another first opening K1 adjacent to the first direction Y and another first opening K1 adjacent to the second direction X. After external light from different directions enters the first opening K1, the light reflected from another first opening K1 adjacent to the first opening K1 in the first direction Y and another first opening K1 adjacent to the first opening K1 in the second direction X is consistent, thereby reducing visual differences when used by users and improving display effects.

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

[0087] The first pitch and the second pitch both range from 30 micrometers to 60 micrometers.

[0088] The values ​​of the first spacing and the second spacing 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] See also Figure 8 Optionally, the display panel 100 further includes a plurality of first filter blocks 51 , a plurality of second filter blocks 52 , a plurality of third filter blocks 53 and a plurality of fourth filter blocks 54 .

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

[0091] In a plan view of the display panel 100 , a first filter hole H1 , a second filter hole H2 , a third filter hole H3 and a fourth filter block 54 are arranged at intervals around a first opening K1 .

[0092] A first opening K1 and a first filter hole H1 , a second filter hole H2 , a third filter hole H3 and a fourth filter hole H4 located around the first opening K1 form a repeating unit 61 .

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

[0094] In this embodiment, by setting a filter hole in the black matrix layer 10 and setting a filter block in the filter hole, a design without a polarizer is realized, thereby reducing production costs. At the same time, the first opening K1 is set between multiple filter blocks in the repeating unit 61, and the spacing between different filter blocks and the first opening K1 in the same repeating unit 61 is reduced. After external light from different directions is incident on the first opening K1, the light emitted by adjacent filter blocks of the first opening K1 is consistent, thereby reducing visual differences when used by users and improving display effects.

[0095] Optionally, the display panel 100 further includes a light emitting layer 31 and an anode 32. The light emitting layer 31 is disposed on the side of the cathode layer 30 away from the encapsulation layer 20, and the anode 32 is disposed on the side of the light emitting layer 31 away from the cathode layer 30. One light emitting layer 31 and one anode 32 are disposed corresponding to one filter block.

[0096] See also Fig. 9 Optionally, in the first direction Y, a distance between two adjacent repeating unit rows 60 is a fifth distance L5.

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

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

[0099] See also Fig.10 After a beam of external light S3 is incident on the first opening K1 of a repeating unit 61 along the first direction Y, the light S3 passes through the encapsulation layer 20 and reaches 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 in the first direction Y and spaced apart by the fifth spacing L5.

[0100] See also Fig.11 After a beam of external light S4 is incident on the first opening K1 of a repeating unit 61 along 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 adjacent to each other in the second direction X and spaced apart by the sixth spacing L6.

[0101] Since the fifth spacing L5 is equal to the sixth spacing L6, after external light from different directions is incident on the first opening K1 of the repeating unit 61, the light reflected from the first opening K1 of adjacent repeating units 61 in different directions is consistent, which can reduce the visual difference of the repeating unit 61 at different observation angles, thereby reducing the visual difference when the user uses it and improving the display effect.

[0102] See also Fig.12 , optionally, in a 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 filter hole H1 is the seventh distance L7. The minimum distance between the edge of the first opening K1 and the edge of the second filter hole H2 is the eighth distance L8. The minimum distance between the edge of the first opening K1 and the edge of the third filter hole H3 is the ninth distance L9. The minimum distance between the edge of the first opening K1 and the edge of the fourth filter hole H4 is the tenth distance L10. The seventh distance L7, the eighth distance L8, the ninth distance L9, and the tenth distance L10 are all 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 filter hole H1 adjacent to each other in the first direction Y and spaced apart by the seventh spacing L7, and from the second filter hole H2 adjacent to each other in the first direction Y and spaced apart by the eighth spacing 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 filter hole H3 adjacent to each other in the second direction X and spaced apart by the ninth spacing L9, and from the fourth filter hole H4 adjacent to each other in the second direction X and spaced apart by the tenth spacing L10.

[0106] Since in a repeating unit 61, the seventh spacing L7, the eighth spacing L8, the ninth spacing L9 and the tenth spacing L10 are equal, therefore, after the external light from different directions is incident on the first opening K1 of the repeating unit 61, the light reflected by the first filter hole H1, the second filter hole H2, the third filter hole H3 and the fourth filter hole H4 adjacent to the first opening K1 is consistent, which can further reduce the visual difference of the repeating unit 61 at different observation angles, thereby further reducing the visual difference when the user uses it and improving the display effect.

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

[0108] The values ​​of the seventh spacing, the eighth spacing, the ninth spacing and the tenth spacing 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.

[0113] In this embodiment, the first color is red, the second color is blue, and the third color is green. The red first filter block 51 is set corresponding to the red light emitting device, the blue second filter block 52 is set corresponding to the blue light emitting device, and the green third filter block 53 and the fourth filter block 54 are set corresponding to the green light emitting device.

[0114] In an organic light-emitting diode, the luminous efficiency of a green light-emitting device is lower than that of other light-emitting devices, so two green filter blocks and corresponding two green light-emitting devices can be set in a repeating unit to improve the green light luminous efficiency of the display panel. In an organic light-emitting diode, the luminous efficiency of a blue light-emitting device is lower than that of a red light-emitting device, so a relatively small red light-emitting device and a relatively large blue light-emitting device can be set. A relatively small red filter block and a relatively large blue filter block are correspondingly set, thereby improving the blue light luminous efficiency of the display panel.

[0115] See also Fig.13 , in the first embodiment of the present application:

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

[0117] In this embodiment, the pattern of the first opening K1 is an axisymmetric figure, 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 and reducing the visual differences of the first opening K1 at different observation angles, avoiding the visual differences being noticed by the human eye when the user uses it, thereby improving the display effect.

[0118] See also Fig.14 , in the second embodiment of the present application:

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

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

[0121] In the second embodiment of the present application, the pattern of the first opening K1 is a pattern that is 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 opening K1 in the first direction Y, thereby further improving the symmetry of the first opening K1, further reducing the visual difference of the first opening K1 at different viewing angles, and further improving the display effect.

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

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

[0124] The value of 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 micrometers to 30 micrometers.

[0126] The value of 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 opening K1 can be further improved, and the visual difference of the first opening K1 at different observation angles can be further reduced, thereby further improving the display effect.

[0129] See also Fig.15 Optionally, in a first cross-sectional view of the display panel 100 perpendicular to the plane where the substrate 40 is located and extending along the extension direction of the first symmetry axis R1, the first opening K1 includes two first side walls K1a arranged opposite to each other 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 adjacent first openings K1 spaced apart along the first direction Y is equal. The length of the third interval L3 is the first length M1.

[0130] See also Fig.16 In a second cross-sectional view of the display panel 100 perpendicular to the plane where the substrate 40 is located and extending along the extension direction of the second symmetry axis R2, the first opening K1 includes two second side walls K1b arranged opposite to each other along the second direction X. In one second opening, the interval between the two second side walls K1b is a fourth interval L4. The fourth interval L4 of two adjacent first openings K1 spaced apart along the second direction X is equal. And the length of the fourth interval L4 is the second length M2. The third interval L3 is equal to the fourth interval L4.

[0131] See also Fig.15 After a beam of external light S5 is incident on a first opening K1 along a first direction Y, the light passes through the encapsulation layer 20 and reaches the cathode layer 30 , is reflected by the surface of the cathode layer 30 , and then is emitted from the first opening K1 again.

[0132] See also Fig.16 After a beam of external light S6 is incident on a first opening K1 along the second direction X, the light passes through the encapsulation layer 20 and reaches the cathode layer 30, and is reflected by the surface of the cathode layer 30, and then is emitted from the first opening K1 again.

[0133] Since in a first opening K1, the third spacing L3 is equal to the fourth spacing L4, after the external light from different directions is incident on the first opening K1, the light reflected from the same first opening K1 in different directions is consistent, which can further improve the symmetry of the first opening K1 and reduce the visual difference of the first opening K1 at different observation angles, thereby further reducing the visual difference when the user uses it and improving the display effect.

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

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

[0136] Optionally, the first symmetry axis R1 and the second symmetry axis R2 intersect at a 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 opening K1 is a centrally symmetrical figure, the symmetry of the first opening K1 in different directions can be guaranteed, and the symmetry of the first opening K1 can be further improved, thereby ensuring the symmetry of the first opening K1 at different angles and reducing the visual difference of the first opening K1 at different observation angles, thereby further reducing the visual difference when the user uses it and improving the display effect.

[0138] See also Fig.17 , Optionally, the pattern of the first opening K1 is circular.

[0139] See also Fig.18 , Optionally, the pattern of the first opening K1 is a diamond shape.

[0140] See also Fig.19 Optionally, the pattern of the first opening K1 is one of regular polygons with an even-numbered side length.

[0141] The above is a detailed description of the specific implementation of the present application. The above implementation disclosed in the present application is only the preferred implementation of the present application. For ordinary technicians in this field, many modifications and improvements can be made without departing from the concept of the present application. These modifications and improvements all fall within the scope of protection defined by the claims of the present application.

Claims

1. A display panel, comprising a display area, characterized in that: At least a part of the display area is a sensor area, and the display panel includes: A black matrix layer, wherein a portion of the black matrix layer located in the sensor area is provided with a plurality of first opening rows spaced apart in a first direction, and the first opening rows include a plurality of first openings spaced apart 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 interval is equal to the second interval.

2. The display panel according to 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 symmetry axis, the pattern of the first openings is a pattern symmetrical about the first symmetry axis, and the first symmetry axis extends along the first direction.

3. The display panel according to claim 2, wherein: In a plan view of the display panel, the pattern of the first openings further has a second symmetry axis, and the pattern of the first openings is a pattern symmetrical about the second symmetry axis; The second symmetry axis extends along the second direction, and the first symmetry axis intersects with the second symmetry axis.

4. The display panel according to claim 3, wherein: In a plan view of the display panel, a length of an overlapping portion of the first symmetry axis and the pattern of the first opening along the first direction is a first length, a length of an overlapping portion of the second symmetry axis and the pattern of the first opening along the second direction is a second length, and the first length is equal to the second length.

5. The display panel according to claim 4, wherein: The display panel further includes: substrate; a cathode layer, disposed on one side of the substrate; and an encapsulation layer, disposed on a side of the cathode layer away from the substrate, the black matrix layer is disposed on a side of the encapsulation layer away from the cathode layer, and the first opening exposes a portion of the encapsulation layer; In a first cross-sectional view of the display panel perpendicular to the plane where the substrate is located and extending along the extension direction of the first symmetry axis, the first opening includes two first side walls arranged opposite to each other along the first direction, and in one of the first openings, the interval between the two first side walls is a third interval, the third interval between two adjacent first openings arranged at intervals along the first direction is equal, and the length of the third interval is the first length; In a second cross-sectional view of the display panel perpendicular to the plane where the substrate is located and extending along the extension direction of the second symmetry axis, the first opening includes two second side walls arranged opposite to each other along the second direction, and in one of the second openings, the interval between the two second side walls is a fourth interval, the fourth interval between two adjacent first openings arranged at intervals along the second direction is equal, and the length of the fourth interval is the second length; The third interval is equal to the fourth interval.

6. The display panel according to claim 3, wherein: The first symmetry axis intersects with the second symmetry axis at a center point of the pattern of the first opening, and the pattern of the first opening is a pattern symmetrical about the center point.

7. The display panel according to claim 6, wherein: The pattern of the first opening is one of a circle, a rhombus, and a regular polygon with an even-numbered side length.

8. The display panel according to any one of claims 1 to 7, characterized in that: 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; The portion of the black matrix layer located in the sensor area 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; In a plan view of the display panel, one of the first openings is provided 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 at intervals; Wherein, 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 holes located around the first opening form a repeating unit; A plurality of the repeating units are arranged at intervals along the second direction in the sensor region to form a repeating unit row, and a plurality of the repeating unit rows are arranged at intervals along the first direction in the sensor region.

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

10. The display panel according to claim 9, wherein: In one of the repeating units, In the plan view of the display panel, the minimum distance between the edge of the first opening and the edge of the first filter hole is the seventh distance, the minimum distance between the edge of the first opening and the edge of the second filter hole is the eighth distance, the minimum distance between the edge of the first opening and the edge of the third filter hole is the ninth distance, and the minimum distance between the edge of the first opening and the edge of the fourth filter hole is the tenth distance; The seventh spacing, the eighth spacing, the ninth spacing, and the tenth spacing are all equal.

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

12. A display device, characterized in that: Comprising the display panel as claimed in any one of claims 1 to 11.

13. The display device according to claim 12, wherein: The display device further includes a light sensor, the orthographic projection of the light sensor on the display panel is located in the sensor area, and the first openings are arranged corresponding to the light sensor; or, The display device further includes an infrared sensor, the orthographic projection of the infrared sensor on the display panel is located within the sensor area, and the plurality of first openings are arranged corresponding to the infrared sensor.

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