Display module and display device

Abstract

Embodiments of the present application provide a display module and a display device, which belong to the technical field of display and are used to reduce the reflectivity difference between the first display area and the second display area while improving the light transmittance of the first display area. The display module comprises a display panel and a first optical sensor. The display panel comprises a first display area and a second display area, and the light transmittance of the first display area is greater than or equal to that of the second display area. Both the first display area and the second display area comprise a substrate, a light-emitting unit and a light-transmitting hole located on the same side of the substrate. In the direction perpendicular to the plane where the substrate is located, the first optical sensor and the first display area at least partially overlap, the first optical sensor and the second display area do not overlap, and the light-emitting unit and the light-transmitting hole do not overlap.

Description

TECHNICAL FIELD

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

[0002] With the continuous development of science and technology, more and more electronic devices with display function are widely used in people's daily life and work, which brings great convenience to people's daily life and work, and becomes an important tool indispensable to people today.

[0003] Organic light emitting diode display device (Organic Light Emitting Diode, OLED) has the characteristics of high brightness, high luminous efficiency, high contrast, ultra-wide viewing angle, low power consumption, etc., and is widely used in many display fields. With the continuous development of display technology, display panels with optical sensors have appeared. At present, the visual effects of different areas of the display panel with optical sensors are inconsistent in the screen-off state. SUMMARY

[0004] Therefore, the present application provides a display module and a display device, which can improve the light transmittance of the first display area of the display panel while reducing the reflectivity difference between the first display area and the second display area.

[0005] In a first aspect, an embodiment of the present application provides a display module, comprising a display panel and a first optical sensor;

[0006] The display panel comprises a first display area and a second display area, and the light transmittance of the first display area is greater than or equal to that of the second display area.

[0007] The first display area and the second display area each comprise a substrate, a light emitting unit and a light transmission hole located on the same side of the substrate. In a direction perpendicular to the plane where the substrate is located, the first optical sensor and the first display area at least partially overlap, the first optical sensor and the second display area do not overlap, and the light emitting unit and the light transmission hole do not overlap.

[0008] In a second aspect, an embodiment of the present application provides a display device comprising the above display module.

[0009] By arranging the first light transmission hole in the first display area of the display panel, the light transmittance of the first display area can be improved, the light intensity entering the first optical sensor can be increased, and the working performance of the first optical sensor can be improved.

[0010] Meanwhile, by designing the second light-transmitting hole in the second display area, the embodiment of the present application can increase the reflectivity of the second display area, so that the reflectivity of the second display area is close to the reflectivity of the first display area, thereby reducing the reflectivity difference between the two areas, avoiding the visual uneven problem that the first display area is obviously brighter than other areas in the screen-off state, and improving the user experience

[0011] Moreover, by adopting the setting mode, the reflectivity difference between the first display area and the second display area is reduced, and the area of the first light-transmitting hole in the first display area does not need to be reduced, so that the first display area has a high light transmittance, thereby ensuring the working performance of the first optical sensor. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0013] Figure 1 A top view of a display module provided by the embodiment of the present application is shown in FIG. 1.

[0014] Figure 2 A top view of a display module provided by the embodiment of the present application is shown in FIG. 1. Figure 1 An enlarged view of the middle area A01 is shown in FIG. 2.

[0015] Figure 3 A sectional view of a display module provided by the embodiment of the present application is shown in FIG. 3.

[0016] Figure 4 A top view of another display module provided by the embodiment of the present application is shown in FIG. 4.

[0017] Figure 5 A top view of a display module provided by the embodiment of the present application is shown in FIG. 1. Figure 4 An enlarged view of the middle area A02 is shown in FIG. 5.

[0018] Figure 6 A sectional view of a second display area and a third display area of a display module provided by the embodiment of the present application is shown in FIG. 6.

[0019] Figure 7 A top view of a third color filter layer located in the second display area provided by the embodiment of the present application is shown in FIG. 7.

[0020] Figure 8 A top view of a first color filter layer located in the second display area provided by the embodiment of the present application is shown in FIG. 8.

[0021] Figure 9A cross-sectional schematic view of a display panel according to another embodiment of the present application;

[0022] Figure 10 A cross-sectional schematic view of a display panel according to another embodiment of the present application; Figure 1 A top view schematic diagram of a pixel definition layer in a middle region A01;

[0023] Figure 11 A top view schematic diagram of a pixel definition layer in a middle region A01; Figure 1 A top view schematic diagram of a pixel definition layer in a middle region A01;

[0024] Figure 12 A cross-sectional schematic view of a display module according to another embodiment of the present application;

[0025] Figure 13 A cross-sectional schematic view of a display module according to another embodiment of the present application;

[0026] Figure 14 A cross-sectional schematic view of a display module according to another embodiment of the present application;

[0027] Figure 15 A cross-sectional schematic view of a display module according to another embodiment of the present application; Figure 1 Another enlarged schematic view of a middle region A01;

[0028] Figure 16 A schematic view of a display device according to an embodiment of the present application. DETAILED DESCRIPTION

[0029] In order to better understand the technical solutions of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0030] It should be clear that the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0031] The terms used in the embodiments of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0032] It should be understood that the term "comprising" used in this specification means that there can be additional elements other than the recited elements.

[0033] And / or” is only a description of the association relationship of the associated objects, indicating that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character “ / ” herein generally represents an “or” relationship between the front and rear associated objects.

[0034] The display module provided by the embodiment of the present application comprises a display panel and a first optical sensor. Figure 1 As shown in the figure, Figure 1 The display module 100 provided by the embodiment of the present application is a top view schematic diagram, Figure 2 The display module 100 provided by the embodiment of the present application is a top view schematic diagram, Figure 1 The display module 100 provided by the embodiment of the present application is a top view schematic diagram, Figure 3 The display module 100 provided by the embodiment of the present application is a cross-sectional schematic diagram, which comprises a display panel 10 and a first optical sensor 101. Optionally, the first optical sensor 101 comprises any one of an ambient light sensor, a fingerprint sensor or a proximity sensor.

[0035] As shown in the figure, Figure 1 , Figure 2 and Figure 3 The display panel 10 comprises a first display area A1 and a second display area A2, and the light transmittance of the first display area A1 is greater than or equal to that of the second display area A2. Exemplarily, the second display area A2 can at least partially surround the first display area A1. Figure 1 Taking the second display area A2 surrounding the first display area A1 as an example. The area of the second display area A2 can be greater than that of the first display area A1.

[0036] The first display area A1 and the second display area A2 both comprise a substrate 1, a light-emitting unit 2 located on the same side of the substrate 1 and a light-transmitting hole. For the convenience of describing the embodiment of the present application, the light-transmitting hole in the first display area A1 is marked as a first light-transmitting hole TK1, and the light-transmitting hole in the second display area A2 is marked as a second light-transmitting hole TK2.

[0037] In the direction h2 perpendicular to the plane where the substrate 1 is located, the first optical sensor 101 and the first display area A1 at least partially overlap, the first optical sensor 101 and the second display area A2 do not overlap, and the first light-transmitting hole TK1 and the second light-transmitting hole TK2 both do not overlap with the light-emitting unit 2. The first optical sensor 101 is located on the side of the substrate 1 away from the light-out side of the display panel 10. Optionally, the first optical sensor 101 and the substrate 1 can not be attached.

[0038] Exemplarily, the display panel 10 can comprise a plurality of light-emitting units 2 with different light-out colors. As shown in the figure, Figure 2As shown, the plurality of light emitting units 2 includes a first color light emitting unit 21, a second color light emitting unit 22 and a third color light emitting unit 23. Optionally, the first color can be red, the second color can be green, and the third color can be blue.

[0039] As an example, Figure 3 As shown, the light emitting unit 2 includes a first electrode 201, a light emitting layer 200 and a second electrode 202 arranged in a stack. Optionally, the first electrode 201 can be an anode, and the second electrode 202 can be a cathode. As an example, the cathode can be an integral structure covering the plurality of light emitting units 2.

[0040] Optionally, the light emitting unit 2 includes any one of an organic light emitting diode (OLED), a quantum dot light emitting diode (QLED) and a micro light emitting diode (Micro LED).

[0041] When the first optical sensor 101 is in operation, light in the external environment can pass through the first light transmission hole TK1 from one side of the display panel 10 to the first optical sensor 101 located at the other side, and the first optical sensor 101 can control the display panel 10 to perform corresponding operations according to the received light. For example, the first optical sensor 101 can be an ambient light sensor, and the first optical sensor 101 can adjust the display brightness of the display panel 10 according to the received ambient light intensity, for example, increasing the display brightness of the display panel 10 when the outdoor brightness is strong, so that the user can clearly see the picture; when the ambient brightness is weak, for example, in the indoor or night environment, the display brightness of the display panel 10 is reduced, and the power consumption of the display panel is reduced. When the first optical sensor 101 is a fingerprint sensor, the first optical sensor 101 can cause the display panel 10 to be unlocked or other corresponding operations according to the received fingerprint reflection light intensity. The design of the first light transmission hole TK1 can meet the photosensitive requirements of the first optical sensor 101 arranged in the first display area A1.

[0042] In the embodiment of the present application, the second display area A2 is an area of the display area of the display panel which does not arrange the first optical sensor 101, and the second light transmission hole TK2 arranged in the second display area A2 can increase the reflectivity of the second display area A2 compared with the mode that the second display area A2 does not include a light transmission hole, and reduce the reflectivity difference between the second display area A2 and the first display area A1.

[0043] The display module 100 provided in this embodiment of the invention can improve the light transmittance of the first display area A1 by setting a first light-transmitting hole TK1 in the first display area A1 of the display panel 10, increase the light intensity entering the first optical sensor 101, and improve the working performance of the first optical sensor 101.

[0044] Meanwhile, by designing a second light-transmitting hole TK2 in the second display area A2, the reflectivity of the second display area A2 can be increased, making it closer to the reflectivity of the first display area A1. This reduces the reflectivity difference between the two areas and avoids the visual unevenness problem where the first display area A1 is significantly brighter than other areas when the screen is off, thus improving the user experience.

[0045] Moreover, by adopting this configuration, while reducing the difference in reflectivity between the first display area A1 and the second display area A2, it is not necessary to reduce the area of ​​the first light-transmitting hole TK1 in the first display area A1. This ensures that the first display area A1 has a high light transmittance, thereby guaranteeing the working performance of the first optical sensor 101.

[0046] For example, such as Figure 2 As shown, the density of light-emitting units 2 in the first display area A1 is equal to the density of light-emitting units 2 in the second display area A2, to ensure that the display effects of the two areas are similar or the same, thereby improving display uniformity. Here, the density of light-emitting units 2 is the number of light-emitting units 2 per unit area of ​​the display area.

[0047] For example, such as Figure 2 As shown, the first display area A1 includes a first group G1, and the second display area A2 includes a second group G2; both the first group G1 and the second group G2 include light-emitting units 2 and light-transmitting holes. After translation, the light-emitting units 2 and light-transmitting holes in the first group G1 at least partially overlap with the light-emitting units 2 and light-transmitting holes in the second group G2. Based on this arrangement, the position of the light-transmitting holes in the second display area A2 relative to the light-emitting units 2 in the second display area A2 can be the same as the position of the light-transmitting holes in the first display area A1 relative to the light-emitting units 2 in the first display area A1. This makes the distribution pattern of the light-transmitting holes in the first display area A1 and the second display area A2 as consistent as possible, which is beneficial to improving the display consistency of the display panel.

[0048] like Figure 2 As shown, in the first display area A1 and the second display area A2, the light-transmitting holes are located between the second color light-emitting unit 22 and the first color light-emitting unit 21 in the third direction h13, and between two adjacent third color light-emitting units 23 in the fourth direction h14.

[0049] Optionally, the area of ​​the second light-transmitting hole TK2 is less than or equal to the area of ​​the first light-transmitting hole TK1.Figure 2 For example, the area ratio of the plurality of first light transmission holes TK1 in the display panel 10 is greater than the area ratio of the plurality of second light transmission holes TK2 in the display panel 10. For example, the number of first light transmission holes TK1 is n1, the number of second light transmission holes TK2 is n2, the area of a single first light transmission hole TK1 is S1, the area of a single second light transmission hole TK2 is S2, and the area of the display panel 10 is S0. Thus, m1 = n1 x S1 / S0, and m2 = n2 x S2 / S0.

[0050] For example, the area ratio of the plurality of first light transmission holes TK1 in the display panel 10 is greater than the area ratio of the plurality of second light transmission holes TK2 in the display panel 10. For example, the number of first light transmission holes TK1 is n1, the number of second light transmission holes TK2 is n2, the area of a single first light transmission hole TK1 is S1, the area of a single second light transmission hole TK2 is S2, and the area of the display panel 10 is S0. Thus, m1 = n1 x S1 / S0, and m2 = n2 x S2 / S0.

[0051] For example, the area ratio of the plurality of first light transmission holes TK1 in the display panel 10 is greater than the area ratio of the plurality of second light transmission holes TK2 in the display panel 10. For example, the number of first light transmission holes TK1 is n1, the number of second light transmission holes TK2 is n2, the area of a single first light transmission hole TK1 is S1, the area of a single second light transmission hole TK2 is S2, and the area of the display panel 10 is S0. Thus, m1 = n1 x S1 / S0, and m2 = n2 x S2 / S0.

[0052] For example, the area ratio of the plurality of first light transmission holes TK1 in the display panel 10 is greater than the area ratio of the plurality of second light transmission holes TK2 in the display panel 10. For example, the number of first light transmission holes TK1 is n1, the number of second light transmission holes TK2 is n2, the area of a single first light transmission hole TK1 is S1, the area of a single second light transmission hole TK2 is S2, and the area of the display panel 10 is S0. Thus, m1 = n1 x S1 / S0, and m2 = n2 x S2 / S0.

[0053] For example, the area ratio of the plurality of first light transmission holes TK1 in the display panel 10 is greater than the area ratio of the plurality of second light transmission holes TK2 in the display panel 10. For example, the number of first light transmission holes TK1 is n1, the number of second light transmission holes TK2 is n2, the area of a single first light transmission hole TK1 is S1, the area of a single second light transmission hole TK2 is S2, and the area of the display panel 10 is S0. Thus, m1 = n1 x S1 / S0, and m2 = n2 x S2 / S0.

[0054] For example, the area ratio of the plurality of first light transmission holes TK1 in the display panel 10 is greater than the area ratio of the plurality of second light transmission holes TK2 in the display panel 10. For example, the number of first light transmission holes TK1 is n1, the number of second light transmission holes TK2 is n2, the area of a single first light transmission hole TK1 is S1, the area of a single second light transmission hole TK2 is S2, and the area of the display panel 10 is S0. Thus, m1 = n1 x S1 / S0, and m2 = n2 x S2 / S0. Figure 4 Figure 4 For example, the area ratio of the plurality of first light transmission holes TK1 in the display panel 10 is greater than the area ratio of the plurality of second light transmission holes TK2 in the display panel 10. For example, the number of first light transmission holes TK1 is n1, the number of second light transmission holes TK2 is n2, the area of a single first light transmission hole TK1 is S1, the area of a single second light transmission hole TK2 is S2, and the area of the display panel 10 is S0. Thus, m1 = n1 x S1 / S0, and m2 = n2 x S2 / S0. Figure 5 Figure 5 For example, the area ratio of the plurality of first light transmission holes TK1 in the display panel 10 is greater than the area ratio of the plurality of second light transmission holes TK2 in the display panel 10. For example, the number of first light transmission holes TK1 is n1, the number of second light transmission holes TK2 is n2, the area of a single first light transmission hole TK1 is S1, the area of a single second light transmission hole TK2 is S2, and the area of the display panel 10 is S0. Thus, m1 = n1 x S1 / S0, and m2 = n2 x S2 / S0. Figure 4 Figure 5 For example, the area ratio of the plurality of first light transmission holes TK1 in the display panel 10 is greater than the area ratio of the plurality of second light transmission holes TK2 in the display panel 10. For example, the number of first light transmission holes TK1 is n1, the number of second light transmission holes TK2 is n2, the area of a single first light transmission hole TK1 is S1, the area of a single second light transmission hole TK2 is S2, and the area of the display panel 10 is S0. Thus, m1 = n1 x S1 / S0, and m2 = n2 x S2 / S0.​​​

[0055] For example, in the embodiment of the present application, the pixel arrangement rules of the first display area A1, the second display area A2 and the third display area A3 can be the same or different. Figure 2 For example, the pixel arrangement rules of the first display area A1 and the second display area A2 are the same, Figure 5 For example, the pixel arrangement rules of the third display area A3 and the second display area A2 are different.

[0056] As shown in Figure 2 and Figure 5 In the first display area A1 and the second display area A2, the i-th row of light emitting units each include first color light emitting units 21 and third color light emitting units 23 arranged alternately along the first direction h11; the i+1-th row of light emitting units each include second color light emitting units 22 and third color light emitting units 23 arranged alternately along the first direction h11; the j-th column of light emitting units each include first color light emitting units 21 and third color light emitting units 23 arranged alternately along the second direction h12; the j+1-th column of light emitting units each include second color light emitting units 22 and third color light emitting units 23 arranged alternately along the second direction h12.

[0057] As shown in Figure 5 In the third display area A3, the first color light emitting units 21 and the third color light emitting units 23 are arranged along the fourth direction h14, and both overlap the second color light emitting units 22 in the third direction h13.

[0058] Optionally, as shown in Figure 5 The third display area A3 can include a third light transmission hole TK3. For example, the area of the third light transmission hole TK3 can be greater than the area of the first light transmission hole TK1 or the second light transmission hole TK2, so as to further increase the light transmittance of the third display area A3.

[0059] Optionally, as shown in Figure 6 , Figure 6 A cross-sectional view of the second display area and the third display area of the display module provided by the embodiment of the present application is shown in The display module 100 further includes a second optical sensor 102, which at least partially overlaps the third display area A3 along a direction h2 perpendicular to the plane in which the substrate 1 lies. For example, the second optical sensor 102 does not at least partially overlap the first display area A1 and the second display area A2. The second optical sensor 102 is located on the side of the substrate 1 away from the light-emitting side of the display panel 10. Optionally, the second optical sensor 102 and the substrate 1 can not be attached.

[0060] Optionally, the second optical sensor 102 comprises a camera. The arrangement of the second optical sensor 102 can enrich the functions of the display module 100 and improve the user experience.

[0061] The display panel 10 can realize the full-screen display effect and improve the user experience by arranging the light emitting unit 2 in the first display area A1 and the third display area A3, so that the display panel 10 has non-display functions such as brightness sensing and camera shooting.

[0062] As shown in the examples of FIG. 1 and FIG. 2, the display panel 10 comprises a first display area A1, a second display area A2 and a third display area A3. Figure 3 As shown in the examples of FIG. 1 and FIG. 2, the display panel 10 comprises a first display area A1, a second display area A2 and a third display area A3.

[0063] As shown in the examples of FIG. 1 and FIG. 2, the display panel 10 comprises a first display area A1, a second display area A2 and a third display area A3. Figure 3 and Figure 6 As shown in the examples of FIG. 1 and FIG. 2, the display panel 10 comprises a first display area A1, a second display area A2 and a third display area A3.

[0064] In the embodiment of the present application, at least one of the light transmission holes in the second display area A2, the light transmission holes in the first display area A1 and the light transmission holes in the third display area A3 comprises a second opening. For the convenience of describing the embodiment of the present application, the second opening in the first display area A1 is marked as a first sub light transmission hole TK11, the second opening in the second display area A2 is marked as a second sub light transmission hole TK21, and the second opening in the third display area A3 is marked as a seventh sub light transmission hole TK31.

[0065] That is, as shown in the examples of FIG. 1 and FIG. 2, the first light transmission hole TK1 comprises the first sub light transmission hole TK11, and the first sub light transmission hole TK11 penetrates the light shielding layer 3 located in the first display area A1. Figure 3 and Figure 6 The arrangement of the first sub light transmission hole TK11 can improve the light transmittance of the area of the first light transmission hole TK1 in the light shielding layer 3. When the first optical sensor 101 works, the ambient light can pass through the light shielding layer 3 from one side of the display panel 10 through the first sub light transmission hole TK11 to the first optical sensor 101 located on the other side of the display panel.

[0066] As shown in the examples of FIG. 1 and FIG. 2, the display panel 10 comprises a first display area A1, a second display area A2 and a third display area A3. Figure 3As shown, the second light-transmitting hole TK2 includes a second sub-light-transmitting hole TK21, which penetrates the light-shielding layer 3 located in the second display area A2. The second sub-light-transmitting hole TK21 can improve the reflectivity of the area where the second light-transmitting hole TK2 is located, and reduce the difference in reflectivity between the second display area A2 and the first display area A1.

[0067] like Figure 6 As shown, the aforementioned third light-transmitting hole TK3 includes a seventh sub-light-transmitting hole TK31, which penetrates the light-shielding layer 3 located in the third display area A3. The setting of the seventh sub-light-transmitting hole TK31 can improve the light transmittance of the area where the third light-transmitting hole TK3 is located. When the display panel 10 is working, ambient light can pass from one side of the display panel through the seventh sub-light-transmitting hole TK31 to the second optical sensor 102 located on the other side of the display panel.

[0068] For example, the first sub-light-transmitting hole TK11, the second sub-light-transmitting hole TK21 and the seventh sub-light-transmitting hole TK31 can be formed in the same patterning process to simplify the manufacturing process of the display panel.

[0069] For example, such as Figure 3 and Figure 6 As shown, the display panel 10 also includes a color filter layer 4 (CF), which is at least partially located within the first opening K1 of the light-shielding layer 3. Along a direction perpendicular to the plane of the substrate 1, the light-emitting unit 2 and the color filter layer 4 at least partially overlap; the color filter layer 4 allows only light of a specific wavelength to pass through, enabling the pixels to emit light of a specific color, and reducing the reflectivity of the display panel 10.

[0070] For example, such as Figure 3 As shown, the display panel 10 may include multiple filter layers 4 with different emitted colors. For example, the multiple filter layers 4 include a first color filter layer 41, a second color filter layer 42, and a third color filter layer 43. The first color filter layer 41 is at least partially located within the first sub-opening K11, the second color filter layer 42 is at least partially located within the second sub-opening K12, and the third color filter layer 43 is at least partially located within the third sub-opening K13.

[0071] Along direction h2 perpendicular to the plane of substrate 1, the first color filter layer 41 and the first color light-emitting unit 21 at least partially overlap, the second color filter layer 42 and the second color light-emitting unit 22 at least partially overlap, and the third color filter layer 43 and the third color light-emitting unit 23 at least partially overlap. The first color filter layer 41 allows only light of the first color to escape, the second color filter layer 42 allows only light of the second color to escape, and the third color filter layer 43 allows only light of the third color to escape.

[0072] Exemplarily, as shown in FIG. 1, the first display area A1 is located on one side of the display panel 10, and the second display area A2 is located on the other side of the display panel 10. Figure 3 Exemplarily, as shown in FIG. 1, the filter layer 4 is located on the side of the light shielding layer 3 away from the substrate 1. Optionally, the light shielding layer 3 can be at least partially covered by the filter layer 4.

[0073] In the embodiment of the present application, the filter layer 4 comprises a third opening, which does not at least partially overlap with the light emitting unit 2 along the direction h2 perpendicular to the plane where the substrate 1 is located.

[0074] Exemplarily, at least one of the light transmission hole in the second display area A2, the light transmission hole in the first display area A1 and the light transmission hole in the third display area A3 comprises the third opening. For the convenience of describing the embodiment of the present application, the third opening in the first display area A1 is marked as a third sub-light transmission hole TK12, the third opening in the second display area A2 is marked as a fourth sub-light transmission hole TK22, and the third opening in the third display area A3 is marked as an eighth sub-light transmission hole TK32.

[0075] That is, as shown in FIG. 1, the first light transmission hole K1 further comprises the third sub-light transmission hole TK12, which penetrates the filter layer 4 located in the first display area A1. The third sub-light transmission hole TK12 and the first sub-light transmission hole TK11 at least partially overlap along the direction h2 perpendicular to the plane where the substrate 1 is located. The third sub-light transmission hole TK12 can improve the light transmittance of the area where the first light transmission hole TK1 is located in the filter layer 4. When the first optical sensor 101 is working, ambient light can pass through the filter layer 4 from one side of the display panel through the third sub-light transmission hole TK12 to the first optical sensor 101 located on the other side. Figure 3 Figure 6 That is, as shown in FIG. 1, the first light transmission hole K1 further comprises the third sub-light transmission hole TK12, which penetrates the filter layer 4 located in the first display area A1. The third sub-light transmission hole TK12 and the first sub-light transmission hole TK11 at least partially overlap along the direction h2 perpendicular to the plane where the substrate 1 is located. The third sub-light transmission hole TK12 can improve the light transmittance of the area where the first light transmission hole TK1 is located in the filter layer 4. When the first optical sensor 101 is working, ambient light can pass through the filter layer 4 from one side of the display panel through the third sub-light transmission hole TK12 to the first optical sensor 101 located on the other side.

[0076] That is, as shown in FIG. 1, the first light transmission hole K1 further comprises the third sub-light transmission hole TK12, which penetrates the filter layer 4 located in the first display area A1. The third sub-light transmission hole TK12 and the first sub-light transmission hole TK11 at least partially overlap along the direction h2 perpendicular to the plane where the substrate 1 is located. The third sub-light transmission hole TK12 can improve the light transmittance of the area where the first light transmission hole TK1 is located in the filter layer 4. When the first optical sensor 101 is working, ambient light can pass through the filter layer 4 from one side of the display panel through the third sub-light transmission hole TK12 to the first optical sensor 101 located on the other side. Figure 3 That is, as shown in FIG. 1, the first light transmission hole K1 further comprises the third sub-light transmission hole TK12, which penetrates the filter layer 4 located in the first display area A1. The third sub-light transmission hole TK12 and the first sub-light transmission hole TK11 at least partially overlap along the direction h2 perpendicular to the plane where the substrate 1 is located. The third sub-light transmission hole TK12 can improve the light transmittance of the area where the first light transmission hole TK1 is located in the filter layer 4. When the first optical sensor 101 is working, ambient light can pass through the filter layer 4 from one side of the display panel through the third sub-light transmission hole TK12 to the first optical sensor 101 located on the other side.

[0077] Figure 6 ​​As shown, the aforementioned third light-transmitting hole TK3 further includes an eighth sub-light-transmitting hole TK32, which penetrates the filter layer 4 located in the third display area A3. Along a direction perpendicular to the plane of the substrate 1, the eighth sub-light-transmitting hole TK32 and the aforementioned seventh sub-light-transmitting hole TK31 at least partially overlap. The arrangement of the eighth sub-light-transmitting hole TK32 can improve the light transmittance of the area where the third light-transmitting hole TK3 is located in the filter layer 4. When the display panel 10 is operating, ambient light can pass through the filter layer 4 from one side of the display panel 10 via the eighth sub-light-transmitting hole TK32 to reach the second optical sensor 102 located on the other side of the display panel 10.

[0078] For example, the third sub-light-transmitting hole TK12, the fourth sub-light-transmitting hole TK22 and the eighth sub-light-transmitting hole TK32 can be formed in the same patterning process to simplify the manufacturing process of the display panel 10.

[0079] It should be noted that the aforementioned third sub-transmitting aperture TK21, fourth sub-transmitting aperture TK22, and eighth sub-transmitting aperture TK32 can be located at the edge of the corresponding filter layer 4, that is, the non-opening structure portion of the filter layer 4 surrounds the third sub-transmitting aperture TK21 or the fourth sub-transmitting aperture TK22. In this case, as... Figure 7 As shown, Figure 7 This invention provides a top view schematic diagram of a third color filter layer located in a second display area. The third color filter layer 43 includes a plurality of spaced-apart third color filter units 430, and the plurality of third color filter units 430 and a plurality of third color emitting units 23 ( Figure 7 The positions of the third color light-emitting units 23 are indicated by dashed lines and are set up one-to-one. At least part of the edge of the third color filter unit 430 includes a notch B, and the orthogonal projection of the third sub-transmitting aperture TK22 on the plane of the substrate 1 covers the orthogonal projection of the notch B on the plane of the substrate 1.

[0080] like Figure 7 As shown, the area of ​​the third color filter unit 430 can be slightly larger than the area of ​​the third color light-emitting unit 23, and the orthographic projection of the third color filter unit 430 onto the plane of the substrate 1 can cover the orthographic projection of the third color light-emitting unit 23 onto the plane of the substrate 1.

[0081] Or, such as Figure 8 As shown, Figure 8A top view of a first color filter layer in a second display area according to an embodiment of the present application is provided. The first color filter layer 41 includes a plurality of first color filter units 410, and at least some of the first color filter units 410 are connected to each other. In the first color filter layer 41, the first color filter units 410 are arranged except at positions of the second color light emitting units 22 and the third color light emitting units 23, i.e., the first color filter layer 41 is arranged with a through hole at positions of the second color light emitting units 22 and the third color light emitting units 23. Figure 8 The positions of the first color light emitting units 21, the second color light emitting units 22 and the third color light emitting units 23 are shown by dashed lines. Figure 8 The positions of the first color light emitting units 21, the second color light emitting units 22 and the third color light emitting units 23 are shown by dashed lines.

[0082] Figure 7 Figure 8 The shape of the fourth sub-transmission hole TK22 is shown as a polygon for illustration, and the shape of the fourth sub-transmission hole TK22 can also be designed as other shapes. The shape of the transmission hole is not limited in the embodiments of the present application.

[0083] The shapes of the holes in the filter layer 4 in the first display area A1 and the third display area A3 are similar to those in the second display area A2, and will not be described herein.

[0084] As shown in FIG. 1 and FIG. 2, the display panel 10 includes a plurality of light emitting units 2 arranged in a matrix form. Figure 3 Figure 6 As shown in FIG. 1 and FIG. 2, the display panel 10 includes a plurality of light emitting units 2 arranged in a matrix form.

[0085] Optionally, the encapsulation layer 5 includes a first encapsulation layer 51, a second encapsulation layer 52 and a third encapsulation layer 53 arranged in a stack. The first encapsulation layer 51 and the third encapsulation layer 53 can include inorganic encapsulation layers, and the second encapsulation layer 52 can include an organic encapsulation layer.

[0086] Optionally, as shown in FIG. 1 and FIG. 2, the display panel 10 further includes an optical adhesive layer 7. Figure 3 Figure 6 Optionally, as shown in FIG. 1 and FIG. 2, the display panel 10 further includes an optical adhesive layer 7.

[0087] Optionally, as shown in FIG. 1 and FIG. 2, the display panel 10 further includes an optical adhesive layer 7. Figure 3 Figure 6 ​​​​As shown, the display panel 10 further includes a pixel definition layer (PDL) 6, the pixel definition layer 6 includes a pixel opening KP, at least part of the light emitting unit 2 is located in the pixel opening KP; specifically, the pixel opening KP can be formed in the region overlapping with the light emitting unit 2 to expose the first electrode 201 of the light emitting unit 2. The light emitting layer 200 located on the side of the first electrode 201 away from the substrate 1 is at least partially formed in the pixel opening KP.

[0088] In the embodiment of the present application, the pixel definition layer 6 further includes a fourth opening, the fourth opening and the light emitting unit 2 do not overlap in the direction perpendicular to the plane where the substrate 1 is located. At least one of the light transmission holes in the second display area A2, the light transmission holes in the first display area A1 and the light transmission holes in the third display area A3 includes the fourth opening. For the convenience of explaining the embodiment of the present application, the fourth opening in the first display area A1 is marked as a fifth sub light transmission hole TK13, the fourth opening in the second display area A2 is marked as a sixth sub light transmission hole TK23, and the fourth opening in the third display area A3 is marked as a ninth sub light transmission hole TK33.

[0089] That is, as shown in Figure 3 and Figure 6 The first light transmission hole TK1 further includes a fifth sub light transmission hole TK13, the fifth sub light transmission hole TK13 penetrates the pixel definition layer 6 located in the first display area A1. In the direction h2 perpendicular to the plane where the substrate 1 is located, the fifth sub light transmission hole TK13 and the first sub light transmission hole TK11 and the third sub light transmission hole TK12 all at least partially overlap. The arrangement of the fifth sub light transmission hole TK13 can improve the light transmittance of the region of the first light transmission hole TK1 in the pixel definition layer 6, and when the first optical sensor 101 is working, more ambient light can pass through the pixel definition layer 6 from one side of the display panel 10 through the fifth sub light transmission hole TK13 to the first optical sensor 101 located on the other side of the display panel 10, thereby improving the working performance of the first optical sensor 101.

[0090] As shown in Figure 3 The second light transmission hole TK2 further includes a sixth sub light transmission hole TK23, the sixth sub light transmission hole TK23 penetrates the pixel definition layer 6 located in the second display area A2. In the direction h2 perpendicular to the plane where the substrate 1 is located, the sixth sub light transmission hole TK23 and the second sub light transmission hole TK21 and the fourth sub light transmission hole TK22 all at least partially overlap, and the arrangement of the sixth sub light transmission hole TK23 can further improve the reflectivity of the region where the second light transmission hole TK2 is located, thereby reducing the reflectivity difference between the second display area A2 and the first display area A1, which is conducive to further improving the consistency of the visual effect of different regions of the display panel 10 in the screen-off state.

[0091] As shown in Figure 6As shown, the third light-transmitting hole TK3 further includes a ninth sub-light-transmitting hole TK33 penetrating the pixel definition layer 6 in the third display area A3. In the direction h2 perpendicular to the plane where the substrate 1 is located, the ninth sub-light-transmitting hole TK33 at least partially overlaps with the seventh sub-light-transmitting hole TK31 and the eighth sub-light-transmitting hole TK32. The arrangement of the ninth sub-light-transmitting hole TK33 can improve the light transmittance of the area where the third light-transmitting hole TK3 is located. When the display panel 10 is in operation, ambient light can pass through the pixel definition layer 6 from one side of the display panel 10 through the ninth sub-light-transmitting hole TK33 to the second optical sensor 102 located on the other side of the display panel 10.

[0092] For example, the fifth sub-light-transmitting hole TK13, the sixth sub-light-transmitting hole TK23, and the ninth sub-light-transmitting hole TK33 can be formed in the same patterning process to simplify the manufacturing process of the display panel.

[0093] In another alternative implementation, as shown, Figure 9 Figure 9 For another cross-sectional schematic view of a display panel provided by an embodiment of the present application, the second light-transmitting hole TK2 can include only the second sub-light-transmitting hole TK21 and the fourth sub-light-transmitting hole TK22. That is, the pixel definition layer 6 in the second display area A2 can not include the fourth opening. Based on this arrangement, the reflectivity of the area where the second light-transmitting hole TK2 is located can be prevented from being excessively high, and the basic display effect of the second display area A2 can be ensured.

[0094] In addition, when the target reflectivity of the second display area A2 is determined, by avoiding the fourth opening corresponding to the second light-transmitting hole TK2 in the pixel definition layer 6, the area of the single second light-transmitting hole TK2 can also be prevented from being excessively small. The smaller the area of the second light-transmitting hole TK2, the higher the requirement for the exposure process. Therefore, by using this arrangement, the process difficulty can be reduced, and the process yield can be improved. The target reflectivity refers to the reflectivity of the second display area when the reflectivity difference between the second display area and the first display area meets the requirement that the first display area cannot be distinguished by the naked eye.

[0095] Optionally, as shown, Figure 10 Figure 10 For Figure 1 A top view schematic view of a pixel definition layer in a middle area A01, in the direction parallel to the plane where the substrate 1 is located, the width of the pixel opening KP in the first display area A1 is smaller than the width of the pixel opening KP in the second display area A2. The width direction of the pixel opening KP in the first display area A1 is parallel to the width direction of the pixel opening KP in the second display area A2.

[0096] ​​The pixel opening KP can expose the first electrode of the light emitting unit 2, and the first electrode can reflect light, so the larger the area of the pixel opening KP, the greater the reflectivity of the region. The embodiment of the present application can make the area of the pixel opening KP in the first display area A1 smaller than the area of the pixel opening KP in the second display area A2 by making the width of the pixel opening KPI in the first display area A1 smaller than the width of the pixel opening KP2 in the second display area A2, so as to make the reflectivity of the light emitting area where the light emitting unit 2 is located in the first display area A1 smaller than the reflectivity of the light emitting area where the light emitting unit 2 is located in the second display area A2, so as to compensate for the difference in overall reflectivity between the second display area A2 and the first display area A1 caused by the arrangement of the light transmission hole in the related art, and improve the visual effect consistency of the display panel 10 in the screen-off state.

[0097] It should be noted that, as shown in Figure 10 The first display area A1 and the second display area A2 each include a plurality of light emitting units 2 of different colors. Correspondingly, the first display area A1 and the second display area A2 include a plurality of pixel openings for accommodating light emitting units 2 of different colors, and the width of the pixel opening KP in the first display area A1 is smaller than the width of the pixel opening KP in the second display area A2, which means that for the pixel openings KP in the first display area A1 and the second display area A2 for accommodating light emitting units 2 of the same color, the width of the pixel opening KP in the first display area A1 is smaller than the width of the pixel opening KP in the second display area A2.

[0098] As shown in Figure 10 For the first color light emitting unit 21, the width W211 of the pixel opening KP in the first display area A1 in the third direction h13 is smaller than the width W212 of the pixel opening KP in the second display area A2 in the third direction h13; for the second color light emitting unit 22, the width W221 of the pixel opening KP in the first display area A1 in the third direction h13 is smaller than the width W222 of the pixel opening KP in the second display area A2 in the third direction h13; for the third color light emitting unit 23, the width W231 of the pixel opening KP in the first display area A1 in the third direction h13 is smaller than the width W232 of the pixel opening KP in the second display area A2 in the third direction h13.

[0099] For example, the area of the pixel opening KP in the first display area A1 is S11, the area of the pixel opening KP in the second display area A2 is S21, and 1%≤(S21-S11) / S21≤3%. Based on this arrangement, the area difference of the pixel openings KP corresponding to the light emitting units 2 of the same color in the first display area A1 and the second display area A2 can be avoided, the reflectivity difference of the first display area A1 and the second display area A2 can be reduced, and the life and color deviation of the light emitting units 2 of the same color in the first display area A1 and the second display area A2 can be ensured to be consistent, thereby improving the display uniformity.

[0100] Optionally, as shown in Figure 11 , Figure 11 , Figure 1 is a top view schematic diagram of a light shielding layer in the middle area A01. In the direction parallel to the plane where the substrate 1 is located, the width of the first opening K1 in the first display area A1 is less than or equal to the width of the first opening K1 in the second display area A2. The width direction of the first opening K1 in the first display area A1 is parallel to the width direction of the first opening K1 in the second display area A2.

[0101] The first opening K1 can expose the metal structures such as the second electrode 202 and the first electrode 201 of the light emitting unit 2, and thus the larger the area of the first opening K1 is, the greater the reflectivity of the area will be. By arranging the width of the first opening K1 in the first display area A1 to be less than or equal to the width of the first opening K1 in the second display area A2, the area of the first opening K1 in the first display area A1 can be made less than or equal to the area of the first opening K1 in the second display area A2, so that the reflectivity of the light emitting area where the light emitting unit 2 is located in the first display area A1 can be made less than or equal to the reflectivity of the light emitting area where the light emitting unit 2 is located in the second display area A2, thereby further compensating for the overall reflectivity difference between the first display area A1 and the second display area A2 caused by the arrangement of the light transmission hole in the related art, and improving the visual effect consistency of the display panel 10 in the screen-off state.

[0102] It should be noted that, as shown in Figure 11 , the first display area A1 and the second display area A2 each include a plurality of light emitting units 2 of different colors. Correspondingly, in the light shielding layer 3, the first display area A1 and the second display area A2 each include first openings K1 corresponding to the plurality of light emitting units 2 of different colors, and the width of the first opening K1 in the first display area A1 is less than or equal to the width of the first opening K1 in the second display area A2, which means that for the first openings K1 corresponding to the light emitting units 2 of the same color in the first display area A1 and the second display area A2, the width of the first opening K1 in the first display area A1 is less than or equal to the width of the first opening K1 in the second display area A2.

[0103] like Figure 11 As shown, for the first color light-emitting unit 21, the width W311 of the first opening K1 in the first display area A1 in the third direction h13 is smaller than the width W312 of the first opening K1 in the second display area A2 in the third direction h13; for the second color light-emitting unit 22, the width W321 of the first opening K1 in the first display area A1 in the third direction h13 is smaller than the width W322 of the first opening K1 in the second display area A2 in the third direction h13; for the third color light-emitting unit 23, the width W331 of the first opening K1 in the first display area A1 in the third direction h13 is smaller than the width W332 of the first opening K1 in the second display area A2 in the third direction h13.

[0104] Optionally, the area of ​​the first opening K1 in the first display area A1 is S12, and the area of ​​the first opening K1 in the second display area A2 is S22, where 1% ≤ (S22-S12) / S22 ≤ 5%. Based on this configuration, the area difference of the first opening K1 corresponding to the same color light-emitting unit 2 in the first display area A1 and the second display area A2 can be avoided. While reducing the reflectivity difference between the first display area A1 and the second display area A2, the color shift of the light-emitting units 2 with the same color in the first display area A1 and the second display area A2 can be ensured to be consistent, which is beneficial to improving display uniformity.

[0105] Optional, such as Figure 12 and Figure 13 As shown, Figure 12 and Figure 13 The diagram shows a cross-sectional view of the first and second display areas of two other display modules provided in this embodiment of the invention. The display panel 10 includes a first pixel definition layer 61 and a second pixel definition layer 62 stacked together. The first pixel definition layer 61 is located on the side of the second pixel definition layer 62 closer to the substrate 1. The light transmittance of the first pixel definition layer 61 is less than or equal to the light transmittance of the second pixel definition layer 62. Optionally, the first pixel definition layer 61 includes a black pixel definition layer (BPDL). Both the first pixel definition layer 61 and the aforementioned light-shielding layer 3 can effectively absorb light, further reducing ambient light reflection, improving display contrast, and enhancing the display effect of the display panel 10. The second pixel definition layer 62 includes a normal pixel definition layer (NPDL).

[0106] For example, the first pixel definition layer 61 includes a plurality of first pixel openings, and the second pixel definition layer 62 includes a plurality of second pixel openings. For the convenience of description of the embodiments of the present application, the first pixel opening in the first display area A1 is marked as a first sub-pixel opening KP11, the second pixel opening in the first display area A1 is marked as a second sub-pixel opening KP12, the first pixel opening in the second display area A2 is marked as a third sub-pixel opening KP21, and the second pixel opening in the second display area A2 is marked as a fourth sub-pixel opening KP22.

[0107] That is, as shown in FIG. 1, the first pixel definition layer 61 includes the first sub-pixel opening KP11 and the third sub-pixel opening KP21, and the first sub-pixel opening KP11 is located in the first display area A1 and the third sub-pixel opening KP21 is located in the second display area A2. Both the first sub-pixel opening KP11 and the third sub-pixel opening KP21 penetrate the first pixel definition layer 61. Figure 12 Figure 13 The second pixel definition layer 62 includes the second sub-pixel opening KP12 and the fourth sub-pixel opening KP22. The second sub-pixel opening KP12 is located in the first display area A1 and the fourth sub-pixel opening KP22 is located in the second display area A2. Both the second sub-pixel opening KP12 and the fourth sub-pixel opening KP22 penetrate the second pixel definition layer 62.

[0108] In the direction h2 perpendicular to the plane where the substrate 1 is located, the first sub-pixel opening KP11 and the second sub-pixel opening KP12 at least partially overlap, and the third sub-pixel opening KP21 and the fourth sub-pixel opening KP22 at least partially overlap.

[0109] The embodiments of the present application can realize the independent adjustment of the reflection area and the light-emitting area of the light-emitting area where the light-emitting unit 2 is located in the first display area A1 and the second display area A2 by adjusting the width of the two pixel openings respectively located in the first pixel definition layer 61 and the second pixel definition layer 62, which is conducive to improving the design freedom of the display panel 10 while reducing the reflectivity difference of the first display area A1 and the second display area A2 and improving the consistency of the visual effect.

[0110] Optionally, the fourth opening can penetrate both the first pixel definition layer 61 and the second pixel definition layer 62. Alternatively, the fourth opening can only penetrate the first pixel definition layer 61 with lower light transmittance, that is, the region corresponding to the light-transmitting hole in the second pixel definition layer 62 with higher light transmittance is not designed to be dug.

[0111] Optionally, the fourth opening can penetrate both the first pixel definition layer 61 and the second pixel definition layer 62. Alternatively, the fourth opening can only penetrate the first pixel definition layer 61 with lower light transmittance, that is, the region corresponding to the light-transmitting hole in the second pixel definition layer 62 with higher light transmittance is not designed to be dug. ​

[0112] As shown in FIG. 1, the first display area A1 and the second display area A2 are provided with the same number of light emitting units 2, and the light emitting units 2 in the first display area A1 and the second display area A2 have the same light emitting color. Figure 12 As shown in FIG. 2, the first display area A1 and the second display area A2 are provided with the same number of light emitting units 2, and the light emitting units 2 in the first display area A1 and the second display area A2 have the same light emitting color. Figure 13 As shown in FIG. 2, the first display area A1 and the second display area A2 are provided with the same number of light emitting units 2, and the light emitting units 2 in the first display area A1 and the second display area A2 have the same light emitting color. Figure 12 As shown in FIG. 2, the first display area A1 and the second display area A2 are provided with the same number of light emitting units 2, and the light emitting units 2 in the first display area A1 and the second display area A2 have the same light emitting color. Figure 13 As shown in FIG. 2, the first display area A1 and the second display area A2 are provided with the same number of light emitting units 2, and the light emitting units 2 in the first display area A1 and the second display area A2 have the same light emitting color.

[0113] As shown in FIG. 2, the first display area A1 and the second display area A2 are provided with the same number of light emitting units 2, and the light emitting units 2 in the first display area A1 and the second display area A2 have the same light emitting color. Figure 14 As shown in FIG. 2, the first display area A1 and the second display area A2 are provided with the same number of light emitting units 2, and the light emitting units 2 in the first display area A1 and the second display area A2 have the same light emitting color. Figure 14 As shown in FIG. 2, the first display area A1 and the second display area A2 are provided with the same number of light emitting units 2, and the light emitting units 2 in the first display area A1 and the second display area A2 have the same light emitting color.

[0114] As shown in FIG. 2, the first display area A1 and the second display area A2 are provided with the same number of light emitting units 2, and the light emitting units 2 in the first display area A1 and the second display area A2 have the same light emitting color.

[0115] Furthermore, in this embodiment of the invention, because the transmittance of the first pixel definition layer 61 is low, the reflective areas within the light-emitting areas in both the first display area A1 and the second display area A2 are defined by the first pixel opening in the first pixel definition layer 61. That is, in the first display area A1, the reflective areas within the light-emitting areas are defined by the area where the first sub-pixel opening KP11 is located, and in the second display area A2, the reflective areas within the light-emitting areas are defined by the area where the third sub-pixel opening KP21 is located. The configuration provided by this embodiment of the invention, while ensuring that the areas of the light-emitting units 2 with the same emitted light color in the first display area A1 and the second display area A2 are the same, also makes the reflectivity within the light-emitting areas of the first display area A1 less than the reflectivity of the light-emitting areas of the second display area A2 by making the width of the first sub-pixel opening KP11 smaller than the width of the third sub-pixel opening KP21. This compensates for the overall reflectivity difference between the second display area A2 and the first display area A1 caused by the setting of the light-transmitting holes in related technologies, and improves the visual consistency of the display panel 10 in the off-screen state.

[0116] It should be noted that both the first display area A1 and the second display area A2 include multiple light-emitting units 2 of different colors. Correspondingly, the first display area A1 and the second display area A2 include multiple pixel openings for accommodating light-emitting units 2 of different colors. The statement that the width of the first pixel opening in the first display area A1 is equal to the width of the second pixel opening in the second display area A2 means that, for pixel openings in the first display area A1 and the second display area A2 used to accommodate light-emitting units 2 of the same color, the width of the first pixel opening in the first display area A1 is equal to the width of the second pixel opening in the second display area A2. Figure 14 The pixel openings in the first display area A1 and the second display area A2 used to accommodate the first color light-emitting unit are illustrated. The pixel openings used to accommodate the second color light-emitting unit and the third color light-emitting unit are similar and will not be described in detail here.

[0117] For example, such as Figure 14 As shown, in the second display area A2, along the direction parallel to the plane where the substrate 1 is located, there is a distance d between the third sub-pixel opening KP21 and the fourth sub-pixel opening KP22. In this embodiment of the invention, the reflectivity increment in the opening area of ​​the second display area A2 can be adjusted by adjusting the above-mentioned d, thereby reducing the reflectivity difference with the first display area A1.

[0118] For example, such as Figure 14As shown, in the second display area A2, along the direction parallel to the plane of the substrate 1, the distance d between the second pixel opening and the first pixel opening satisfies: 1μm ≤ d ≤ 5μm. That is, the distance d between the third sub-pixel opening KP21 and the fourth sub-pixel opening KP22 satisfies: 1μm ≤ d ≤ 5μm. Based on this setting, the distance d between the third sub-pixel opening KP21 and the fourth sub-pixel opening KP22 is avoided from being set too large. With the width and reflectivity of the third sub-pixel opening KP21 determined, the width of the fourth sub-pixel opening KP22 can be avoided from being set too small, thus ensuring that the area of ​​the light-emitting unit 2 in the second display area A2 is not too small. Furthermore, with the width of the fourth sub-pixel opening KP22 determined, the width of the third sub-pixel opening KP21 can be avoided from being set too large, thus preventing the reflectivity of the second display area A2 from being too high, which is beneficial for ensuring the basic reflectivity specifications of the second display area A2.

[0119] For example, such as Figure 3 As shown, in the first display area A1, along the direction parallel to the plane of the substrate 1, the shortest distance between the first opening K1 and the light-emitting unit 2 is d1, and the width of the light-emitting unit 2 is W21. The width direction of the light-emitting unit 2 is parallel to the direction of the shortest distance between the first opening K1 and the light-emitting unit 2. The distance between the plane of the light-shielding layer 3 away from the substrate 1 and the light-emitting unit 2 in the direction perpendicular to the plane of the substrate 1 is H1.

[0120] In the second display area A2, along the direction parallel to the plane where the substrate 1 is located, the shortest distance between the first opening K1 and the light-emitting unit 2 is d2, and the width of the light-emitting unit 2 is W22; the distance between the plane of the light-shielding layer 3 away from the substrate 1 and the light-emitting unit 2 in the direction perpendicular to the plane where the substrate 1 is located is H2; where, (W21+d1) / H1=(W22+d2) / H2.

[0121] When the display panel 10 is working, the small-angle light emitted by the light-emitting unit 2 is emitted through the first opening K1, while the large-angle light is blocked by the non-opening position of the light-shielding layer 3 and cannot be emitted from the display panel 10. The angle between the propagation direction of the small-angle light and the normal to the plane containing the substrate 1 is smaller than the angle between the propagation direction of the large-angle light and the normal to the plane containing the substrate 1. In this embodiment of the invention, by setting (W21+d1) / H1=(W22+d2) / H2, the maximum angle θ1 of the light emitted by the light-emitting unit 2 in the first display area that can be emitted through the first opening K1, and the maximum angle θ2 of the light emitted by the light-emitting unit 2 in the second display area that can be emitted through the first opening K1, can satisfy: θ1=θ2. This can improve the color shift and lifespan of the light-emitting units 2 in the first display area A1 and the second display area A2 to be more consistent, which is beneficial to improving the display uniformity of different areas in the display panel 10.

[0122] For example, the distance between the plane of the light-shielding layer 3 away from the substrate 1 and the light-emitting unit 2 in a direction perpendicular to the plane of the substrate 1 can be the distance between the plane of the light-shielding layer 3 away from the substrate 1 and the light-emitting layer 200 in a direction perpendicular to the plane of the substrate 1. In this embodiment of the invention, H1 = H2, d1 = d2, W21 = W22 can be set.

[0123] For example, such as Figure 3 and Figure 6 As shown, the display panel 10 also includes a driving circuit layer 20, which includes transistors ( Figure 3 and Figure 6 (not shown) and metal traces ( Figure 3 and Figure 6 (Not shown), along the direction h2 perpendicular to the plane where the substrate 1 is located, the first light-transmitting hole TK1, the second light-transmitting hole TK2 and the third light-transmitting hole TK3 do not overlap with the metal traces and transistors in the driving circuit layer 20 at least partially, so as to avoid the metal traces and transistors blocking the incident ambient light and affecting the light transmittance of the area where each light-transmitting hole is located.

[0124] Optionally, the number of light-transmitting holes per unit area in the second display area A2 is less than or equal to the number of light-transmitting holes per unit area in the first display area A1. That is, the density of the second light-transmitting holes TK2 is less than or equal to the density of the first light-transmitting holes TK1. Based on this setting, the reflectivity of the second display area A2 can be prevented from increasing too much, and while reducing the difference in reflectivity between the first display area A1 and the second display area A2, the basic display effect of the second display area A2 can be guaranteed not to be affected.

[0125] For example, embodiments of the present invention also incorporate simulation verification of the reflectivity of the first display area and the second display area using comparative examples.

[0126] In the comparative example, the first display area A1 includes a plurality of light-transmitting holes, the second display area A2 does not include light-transmitting holes, the reflectivity r01 of the area where a single light-transmitting hole in the first display area A1 is located is 32%, the total area ratio m01 of the plurality of light-transmitting holes in the first display area A1 in the display panel is 1.8%, the reflectivity r00 of the non-hole-digging area in the second display area A2 is 4.4%, and the overall reflectivity R01 of the first display area A1 satisfies: R01 = r01 x m01 = 32% x 1.8% = 0.58%. In the same area as the area where the plurality of light-transmitting holes in the first display area A1 are located, the overall reflectivity R02 of the second display area A2 satisfies: R02 = r00 x m01 = 4.4% x 1.8% = 0.08%. Therefore, in the comparative example, the overall reflectivity difference AR0 of the first display area A1 and the second display area A2 satisfies: AR0 = R01 - R02 = 0.5%.

[0127] In the embodiment of the present application, the first display area A1 includes a plurality of first light-transmitting holes, the reflectivity r11 of the area where a single first light-transmitting hole is located is 32%, the second display area A2 includes a plurality of second light-transmitting holes, the reflectivity r12 of the area where a single second light-transmitting hole is located is 26%, the total area ratio m11 of the plurality of first light-transmitting holes in the first display area A1 in the display panel is 1.8%, the total area ratio m12 of the plurality of second light-transmitting holes in the second display area A2 in the display panel is 0.8%, the overall reflectivity R11 of the first display area A1 satisfies: R11 = r11 x m11 = 32% x 1.8% = 0.58%, and the overall reflectivity R12 of the second display area A2 satisfies: R12 = r12 x m12 + r00 x (m11 - m12) = 26% x 0.8% + 4.4% x 1.0% = 0.21% + 0.04% = 0.25%. Therefore, in the embodiment of the present application, the overall reflectivity difference AR1 of the first display area A1 and the second display area A2 satisfies: AR1 = R11 - R12 = 0.33% < AR0.

[0128] It can be seen that the setting mode provided by the embodiment of the present application can reduce the overall reflectivity difference of the first display area A1 and the second display area A2, and help to improve the visual effect consistency of the first display area A1 and the second display area A2 in the screen-off state.

[0129] It should be noted that, Figure 2 and Figure 5The shapes and distribution positions of the first light transmission hole TK1, the second light transmission hole TK2 and the third light transmission hole TK3 shown are only schematic, and embodiments of the present application are not limited in this regard. For example, embodiments of the present application can set the shape of any one or more of the first light transmission hole TK1, the second light transmission hole TK2 and the third light transmission hole TK3 to be circular, elliptical or similar to a circle, i.e. a circle-like shape. For example, Figure 15 As shown, Figure 15 For example, Figure 1 Another enlarged schematic view of the middle region A01, in which the shapes of the first light transmission hole TK1 and the second light transmission hole TK2 are designed to be circular.

[0130] When the first light transmission hole TK1 is designed to be circular, the diffraction phenomenon of light in the external environment when passing through the first light transmission hole TK1 can be inhibited, which is conducive to improving the consistency of light intensity of ambient light passing through the first display area A1 at different positions and improving the working performance of the first optical sensor 101.

[0131] When the second light transmission hole TK2 is designed to be circular, the diffraction phenomenon of light in the external environment when passing through the second light transmission hole TK2 can be inhibited, which is conducive to improving the visual consistency at different positions in the second display area A2.

[0132] When the third light transmission hole TK3 is designed to be circular, the diffraction phenomenon of light in the external environment when passing through the third light transmission hole TK3 can be inhibited, which is conducive to improving the consistency of light intensity of ambient light passing through the third display area A3 at different positions and improving the working performance of the second optical sensor 102.

[0133] It should also be noted that, Figure 1 and Figure 4 The shapes of the first display area A1 and the second display area A2 shown, and Figure 4 The shape of the third display area A3 shown are only schematic, and embodiments of the present application can design the shape of any one of the first display area A1, the second display area A2 and the third display area A3 to be circular, polygonal or irregular. Embodiments of the present application are not limited in this regard. Figure 1 For example, the shapes of the first display area A1 and the second display area A2 are both set to be quadrilaterals. Figure 4 For example, the shape of the first display area A1 is set to be circular, and the shapes of the second display area A2 and the third display area A3 are set to be quadrilaterals.

[0134] Based on the same inventive concept, embodiments of the present application also provide a display device, as shown, Figure 16 As shown, Figure 16A schematic diagram of a display device provided by an embodiment of the present application is shown, and the display device comprises the display module 100 described above. The specific structure of the display module 100 has been described in detail in the above embodiment, and will not be described here again. Of course, Figure 16 The display device shown is merely illustrative, and the display device can be any device having a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic paper, a television, a smart watch, etc. Embodiments of the present application are not limited in this regard.

[0135] The above merely provides the preferred embodiments of the present application, but should not be used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

[0136] The same and similar parts among the various embodiments in the specification can be referred to each other. Especially, for the device embodiments and the terminal embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the description in the method embodiments.

Claims

1. A display module, characterized in that, Includes a display panel and a first optical sensor; The display panel includes a first display area and a second display area, wherein the light transmittance of the first display area is greater than or equal to the light transmittance of the second display area; Both the first display area and the second display area include a substrate and a light-emitting unit and a light-transmitting hole located on the same side of the substrate. Along a direction perpendicular to the plane of the substrate, the first optical sensor and the first display area at least partially overlap, the first optical sensor and the second display area do not overlap, and the light-emitting unit and the light-transmitting hole do not overlap. The display panel further includes a first pixel definition layer and a second pixel definition layer stacked together, wherein the first pixel definition layer is located on the side of the second pixel definition layer closer to the substrate; The transmittance of the first pixel definition layer is less than or equal to the transmittance of the second pixel definition layer; The first pixel definition layer includes a first pixel opening, and the second pixel definition layer includes a second pixel opening. Along a direction perpendicular to the plane where the substrate is located, the first pixel opening and the second pixel opening at least partially overlap. At least a portion of the light-emitting unit is located within the first pixel opening and the second pixel opening.

2. The display module according to claim 1, characterized in that, The density of the light-emitting units in the first display area is equal to the density of the light-emitting units in the second display area.

3. The display module according to claim 1, characterized in that, The display panel further includes a third display area, which includes the light-emitting units, and the density of the light-emitting units in the third display area is less than or equal to the density of the light-emitting units in the second display area.

4. The display module according to claim 3, characterized in that, It also includes a second optical sensor, which, along a direction perpendicular to the plane of the substrate, at least partially overlaps with the third display area.

5. The display module according to claim 1, characterized in that, The display panel further includes a light-shielding layer, which includes a first opening and a second opening; Along a direction perpendicular to the plane of the substrate, the light-emitting unit at least partially overlaps with the first opening; At least one of the light-transmitting holes in the second display area and the first display area includes the second opening.

6. The display module according to claim 1, characterized in that, The display panel further includes a filter layer, and the light-emitting unit at least partially overlaps with the filter layer along a direction perpendicular to the plane of the substrate; The filter layer includes a third opening; At least one of the light-transmitting holes in the second display area and the first display area includes the third opening.

7. The display module according to claim 1, characterized in that, The display panel further includes a pixel definition layer, the pixel definition layer including pixel openings, and at least a portion of the light-emitting unit is located within the pixel openings; The pixel definition layer also includes a fourth opening. At least one of the light-transmitting holes in the second display area and the first display area includes the fourth opening.

8. The display module according to claim 1, characterized in that, The first pixel definition layer includes a plurality of first pixel openings, and the second pixel definition layer includes a plurality of second pixel openings; In the first display area, the area of ​​at least one first pixel opening is smaller than the area of ​​at least one second pixel opening, and the orthographic projection of the second pixel opening onto the plane where the substrate is located covers the orthographic projection of the first pixel opening onto the plane where the substrate is located. In the second display area, the area of ​​at least one of the first pixel openings is greater than the area of ​​at least one of the second pixel openings, and the orthographic projection of the first pixel opening onto the plane of the substrate covers the orthographic projection of the second pixel opening onto the plane of the substrate.

9. The display module according to claim 1, characterized in that, Along a direction parallel to the plane where the substrate is located, the width of the first pixel opening in the first display area is equal to the width of the second pixel opening in the second display area, and the width direction of the first pixel opening is parallel to the width direction of the second pixel opening.

10. The display module according to claim 1, characterized in that, In the second display area, along a direction parallel to the plane where the substrate is located, the distance d between the second pixel opening and the first pixel opening satisfies: 1μm≤d≤5μm.

11. The display module according to claim 1, characterized in that, The display panel further includes a pixel definition layer, the pixel definition layer including pixel openings, and at least a portion of the light-emitting unit is located within the pixel openings; Along a direction parallel to the plane of the substrate, the width of the pixel opening in the first display area is less than or equal to the width of the pixel opening in the second display area.

12. The display module according to claim 1, characterized in that, The display panel further includes a light-shielding layer, the light-shielding layer including a first opening; along a direction perpendicular to the plane of the substrate, the light-emitting unit at least partially overlaps with the first opening; Along a direction parallel to the plane of the substrate, the width of the first opening in the first display area is less than or equal to the width of the first opening in the second display area.

13. The display module according to claim 1, characterized in that, The display panel further includes a light-shielding layer, the light-shielding layer including a first opening; along a direction perpendicular to the plane of the substrate, the light-emitting unit at least partially overlaps with the first opening; Along a direction parallel to the plane of the substrate, the shortest distance between the first opening in the first display area and the light-emitting unit is d1, the width of the light-emitting unit is W21, and the distance between the plane of the light-shielding layer away from the substrate and the light-emitting unit in a direction perpendicular to the plane of the substrate is H1. The shortest distance between the first opening in the second display area and the light-emitting unit is d2, the width of the light-emitting unit is W22, and the distance between the plane of the light-shielding layer away from the substrate and the light-emitting unit in a direction perpendicular to the plane of the substrate is H2; Wherein, (W21+d1) / H1=(W22+d2) / H2.

14. The display module according to claim 1, characterized in that, The first display area includes a first group, and the second display area includes a second group; After translation, the light-emitting unit and the light-transmitting hole in the first group coincide with the light-emitting unit and the light-transmitting hole in the second group, respectively.

15. The display module according to claim 1, characterized in that, The area of ​​the light-transmitting hole in the second display area is less than or equal to the area of ​​the light-transmitting hole in the first display area.

16. The display module according to claim 1, characterized in that, The number of light-transmitting holes per unit area in the second display area is less than or equal to the number of light-transmitting holes per unit area in the first display area.

17. A display device, characterized in that, Includes the display module as described in any one of claims 1-16.

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