Display module and display device

Abstract

The embodiment of the invention provides a display module and a display device, relates to the technical field of display, and aims to reduce the reflectivity difference between a first display area and a 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 larger than or equal to that of the second display area. Each of the first display area and the second display area comprises a substrate and a light-emitting unit and a light-transmitting hole which are located on the same side of the substrate, the first optical sensor and the first display area are at least partially overlapped in the direction perpendicular to the plane where the substrate is located, the first optical sensor and the second display area are not overlapped, and the light-emitting units and the light-transmitting holes are not overlapped.

Description

Technical Field

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

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

[0003] Organic Light Emitting Diode (OLED) display devices have the characteristics of high brightness, high luminous efficiency, high contrast, ultra-wide viewing angle, low power consumption, etc., and are widely used in many display fields. With the continuous development of display technology, display panels equipped with optical sensors have emerged. At present, different areas of display panels equipped with optical sensors have inconsistent visual effects when the screen is off. Summary of the invention

[0004] In view of this, the present application provides a display module and a display device for reducing the difference in reflectivity between the first display area and the second display area while improving the transmittance of the first display area of ​​the display panel.

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

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

[0007] The first display area and the second display area both 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 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.

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

[0009] By adopting the solution provided by the embodiment of the present invention, by setting the first light-transmitting 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] At the same time, the embodiment of the present invention can increase the reflectivity of the second display area by designing a second light-transmitting hole in the second display area, so that the reflectivity of the second display area is close to that of the first display area, thereby reducing the reflectivity difference between the two areas, avoiding the visual unevenness problem that the first display area is obviously brighter than other areas in the off state, and improving the user experience

[0011] Moreover, by adopting this setting, while reducing the reflectivity difference between the first display area and the second display area, there is no need to reduce the area of ​​the first light-transmitting hole in the first display area, thereby ensuring that the first display area has a higher light transmittance, thereby ensuring the working performance of the first optical sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 A schematic top view of a display module provided by an embodiment of the present invention;

[0014] Figure 2 for Figure 1 An enlarged schematic diagram of the middle area A01;

[0015] Figure 3 A cross-sectional schematic diagram of a display module provided by an embodiment of the present invention;

[0016] Figure 4 A schematic top view of another display module provided by an embodiment of the present invention;

[0017] Figure 5 for Figure 4 An enlarged schematic diagram of the middle area A02;

[0018] Figure 6 A cross-sectional schematic diagram of a second display area and a third display area of ​​a display module provided by an embodiment of the present invention;

[0019] Figure 7 A schematic top view of a third color filter layer located in a second display area provided by an embodiment of the present invention;

[0020] Figure 8 A schematic top view of a first color filter layer located in a second display area provided by an embodiment of the present invention;

[0021] Fig. 9A schematic cross-sectional view of another display panel provided by an embodiment of the present invention;

[0022] Fig.10 for Figure 1 A schematic top view of a pixel definition layer in the middle area A01;

[0023] Fig.11 for Figure 1 A schematic top view of a light shielding layer in the middle area A01;

[0024] Fig.12 A schematic cross-sectional view of a first display area and a second display area of ​​another display module provided by an embodiment of the present invention;

[0025] Fig.13 A cross-sectional schematic diagram of a first display area and a second display area of ​​another display module provided by an embodiment of the present invention;

[0026] Fig.14 A cross-sectional schematic diagram of a first display area and a second display area of ​​another display module provided by an embodiment of the present invention;

[0027] Fig.15 for Figure 1 Another enlarged schematic diagram of the middle area A01;

[0028] Fig.16 A schematic diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0029] In order to better understand the technical solution 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 part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are 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 specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0032] It should be understood that the term "

[0033] "And / or" is just a way to describe the association relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the related objects before and after are in an "or" relationship.

[0034] An embodiment of the present invention provides a display module, such as Figure 1 As shown, Figure 1 A schematic top view of a display module 100 provided in an embodiment of the present invention is shown in FIG. Figure 2 for Figure 1 An enlarged schematic diagram of the middle area A01, Figure 3 The cross-sectional schematic diagram of a display module 100 provided in an embodiment of the present invention includes a display panel 10 and a first optical sensor 101. Optionally, the first optical sensor 101 includes any one of an ambient light sensor, a fingerprint sensor or a proximity sensor.

[0035] like Figure 1 , Figure 2 and Figure 3 As shown, the display panel 10 includes a first display area A1 and a second display area A2, and the transmittance of the first display area A1 is greater than or equal to the transmittance of the second display area A2; illustratively, the second display area A2 may 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 may be larger than the area of ​​the first display area A1.

[0036] The first display area A1 and the second display area A2 both include a substrate 1, a light emitting unit 2 and a light-transmitting hole located on the same side of the substrate 1. To facilitate the description of the embodiment of the present invention, 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] Along 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 transmission hole TK1 and the second light transmission hole TK2 do not overlap with the light-emitting unit 2. The first optical sensor 101 is located on a side of the substrate 1 away from the light-emitting side of the display panel 10. Optionally, the first optical sensor 101 and the substrate 1 may not be attached.

[0038] Exemplarily, the display panel 10 may include a plurality of light emitting units 2 having different light emitting colors. Figure 2As shown, the plurality of light emitting units 2 include 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 may be red, the second color may be green, and the third color may be blue.

[0039] For 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 which are stacked. Optionally, the first electrode 201 may be an anode, and the second electrode 202 may be a cathode. Exemplarily, the cathode may be a structure covering the entire surface of a 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 working, the light in the external environment can pass through the first light-transmitting hole TK1 from one side of the display panel 10 to the first optical sensor 101 located on 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, when the outdoor brightness is strong, the display brightness of the display panel 10 is increased so that the user can see the picture clearly; when the ambient brightness is weak, for example, in an indoor or night environment, the display brightness of the display panel 10 is reduced to reduce the power consumption of the display panel. When the first optical sensor 101 is a fingerprint sensor, the first optical sensor 101 can unlock the display panel 10 or perform other corresponding operations according to the received fingerprint reflected light intensity. The design of the first light-transmitting hole TK1 can meet the light-sensing requirements of the first optical sensor 101 set corresponding to the first display area A1.

[0042] In the embodiment of the present invention, the second display area A2 is an area of ​​the display area of ​​the display panel where the first optical sensor 101 is not disposed. The embodiment of the present invention sets a second light-transmitting hole TK2 in the second display area A2. Compared with the method in which the second display area A2 does not include a light-transmitting hole, the reflectivity of the second display area A2 can be increased and the reflectivity difference between the second display area A2 and the first display area A1 can be reduced.

[0043] The display module 100 provided in the embodiment of the present invention can improve the transmittance of the first display area A1 by setting the 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] At the same time, the embodiment of the present invention can increase the reflectivity of the second display area A2 by designing the second light-transmitting hole TK2 in the second display area A2, so that the reflectivity of the second display area A2 is close to the reflectivity of the first display area A1, thereby reducing the reflectivity difference between the two areas, and avoiding the visual unevenness problem that the first display area A1 is obviously brighter than other areas in the screen-off state, which can improve the user experience.

[0045] Moreover, with this arrangement, while reducing the reflectivity difference between the first display area A1 and the second display area A2, there is no need to reduce the area of ​​the first light-transmitting hole TK1 in the first display area A1, so that the first display area A1 can have a higher light transmittance, thereby ensuring the working performance of the first optical sensor 101.

[0046] For example, Figure 2 As shown, the density of the light-emitting units 2 in the first display area A1 is equal to the density of the light-emitting units 2 in the second display area A2, so as to ensure that the display effects of the two areas are close or the same, and improve the display uniformity. The density of the light-emitting units 2 is the number of light-emitting units 2 in the display area per unit area.

[0047] For example, 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; the first group G1 and the second group G2 both include a light-emitting unit 2 and a light-transmitting hole. The light-emitting unit 2 and the light-transmitting hole in the first group G1 are at least partially overlapped with the light-emitting unit 2 and the light-transmitting hole in the second group G2 after translation. Based on this setting, the position of the light-transmitting hole in the second display area A2 relative to the light-emitting unit 2 in the second display area A2 can be the same as the position of the light-transmitting hole in the first display area A1 relative to the light-emitting unit 2 in the first display area A1, so that the distribution pattern of the light-transmitting holes in the first display area A1 and the second display area A2 can be made 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 are located between two adjacent third color light-emitting units 23 in the fourth direction h14.

[0049] Optionally, the area of ​​the second light transmission hole TK2 is smaller than or equal to the area of ​​the first light transmission hole TK1. Figure 2 As an example, the area of ​​the second light-transmitting hole TK2 is equal to the area of ​​the first light-transmitting hole TK1 in the first display area A1. Based on this arrangement, it is possible to ensure that the first display area A1 has a relatively large light transmittance, satisfying the light-sensing requirements of the first optical sensor 101 corresponding to the first display area A1. In addition, the reflectivity of the second display area A2 is increased, the difference in reflectivity between the first display area A1 and the second display area A2 is reduced, and the reflectivity of the second display area A2 is prevented from increasing too much, thereby ensuring that the second display area A2 meets the basic reflectivity specification requirements.

[0050] Exemplarily, the total area ratio m1 of the plurality of first light-transmitting holes TK1 in the display panel 10 is greater than the total area ratio m2 of the plurality of second light-transmitting holes TK2 in the display panel 10. Wherein, the number of first light-transmitting holes TK1 is n1, the number of second light-transmitting holes TK2 is n2, the area of ​​a single first light-transmitting hole TK1 is S1, the area of ​​a single second light-transmitting hole TK2 is S2, and the area of ​​the display panel 10 is S0, then, m1=n1×S1 / S0, m2=n2×S2 / S0.

[0051] Optionally, a total area proportion m1 of the plurality of first light transmission holes TK1 satisfies: 1.5%≤m1≤2%. Optionally, m1 may be 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, or 2%.

[0052] Exemplarily, the area proportion m2 of the plurality of second light-transmitting holes TK2 satisfies: 0.5%≤m2≤1%. Optionally, m2 may be 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, or 1%.

[0053] Based on this configuration, it is possible to avoid excessive increase in the reflectivity of the second display area A2, and while reducing the reflectivity difference between the first display area A1 and the second display area A2, it is possible to ensure that the basic display effect of the second display area A2 is not affected.

[0054] For example, Figure 4 As shown, Figure 4 The top view of another display module 100 provided by the embodiment of the present invention is shown in FIG. 1 . The display panel 10 further includes a third display area A3. Figure 5 As shown, Figure 5 for Figure 4 An enlarged schematic diagram of the middle area A02, the third display area A3 also includes light-emitting units 2, and the density of the light-emitting units 2 in the third display area A3 is less than or equal to the density of the light-emitting units 2 in the second display area A2. Based on this setting, the light transmittance of the third display area A3 can be improved. Figure 5 It is taken as an example that the density of the light emitting units 2 in the third display area A3 is lower than the density of the light emitting units 2 in the second display area A2.

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

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

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

[0058] Optional, such as Figure 5 As shown, the third display area A3 may include a third light-transmitting hole TK3. Exemplarily, the area of ​​the third light-transmitting hole TK3 may be larger than the area of ​​the first light-transmitting hole TK1 or the second light-transmitting hole TK2 to further increase the light transmittance of the third display area A3.

[0059] Optional, combined Figure 6 As shown, Figure 6 A cross-sectional schematic diagram of a second display area and a third display area of ​​a display module provided in an embodiment of the present invention, wherein the display module 100 further includes a second optical sensor 102, and along a direction h2 perpendicular to the plane where the substrate 1 is located, the second optical sensor 102 and the third display area A3 at least partially overlap. Exemplarily, the second optical sensor 102 does not overlap at least partially with the first display area A1 and the second display area A2. The second optical sensor 102 is located on a 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 may not be bonded.

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

[0061] The embodiment of the present invention provides light-emitting units 2 in both the first display area A1 and the third display area A3, so that the display panel 10 can have non-display functions such as brightness sensing and video recording, while achieving a full-screen display effect, thereby improving user experience.

[0062] For example, Figure 3 As shown, the display panel 10 further includes a light shielding layer 3, at least part of which is located on a side of the light emitting unit 2 close to the light emitting side of the display panel 10. The light shielding layer 3 can prevent the light from emitting different colors from being mixed between two adjacent light emitting units 2. Optionally, the light shielding layer 3 includes a black matrix (BM) formed of a metal material, a pigment (carbon black, etc.) or a resin material of a dye.

[0063] like Figure 3 and Figure 6 As shown, the light shielding layer 3 includes a plurality of first openings K1 and a plurality of second openings; along a direction perpendicular to the plane where the substrate 1 is located, the light emitting unit 2 at least partially overlaps with the first opening K1; and the outgoing light of the light emitting unit 2 can be emitted through the first opening K1.

[0064] In the embodiment of the present invention, at least one of the light-transmitting hole in the second display area A2, the light-transmitting hole in the first display area A1, and the light-transmitting hole in the third display area A3 includes a second opening. To facilitate the description of the embodiment of the present invention, the second opening in the first display area A1 is marked as a first sub-light-transmitting hole TK11, the second opening in the second display area A2 is marked as a second sub-light-transmitting hole TK21, and the second opening in the third display area A3 is marked as a seventh sub-light-transmitting hole TK31.

[0065] That is, if Figure 3 and Figure 6 As shown, the first light-transmitting hole TK1 includes a first sub-light-transmitting hole TK11, and the first sub-light-transmitting hole TK11 penetrates the light-shielding layer 3 located in the first display area A1. The provision of the first sub-light-transmitting hole TK11 can improve the light transmittance of the area where the first light-transmitting hole TK1 is located in the light-shielding layer 3. When the first optical sensor 101 is working, ambient light can pass through the light-shielding layer 3 from one side of the display panel 10 through the first sub-light-transmitting hole TK11 to project to the first optical sensor 101 located on the other side of the display panel.

[0066] like Figure 3As shown, the second light-transmitting hole TK2 includes a second sub-light-transmitting hole TK21, and the second sub-light-transmitting hole TK21 penetrates the light-shielding layer 3 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 third light-transmitting hole TK3 includes a seventh sub-light-transmitting hole TK31, and the seventh sub-light-transmitting hole TK31 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 through the seventh sub-light-transmitting hole TK31 from one side of the display panel to the second optical sensor 102 located on the other side of the display panel.

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

[0069] For example, Figure 3 and Figure 6 As shown, the display panel 10 further includes a color filter layer 4 (Color Filter, CF for short), which is at least partially located in the first opening K1 of the light shielding layer 3. Along a direction perpendicular to the plane where the substrate 1 is located, the light emitting unit 2 and the color filter layer 4 at least partially overlap; the color filter layer 4 only allows light of a specific wavelength to pass through, so that the pixel can emit light of a specific color, and reduce the reflectivity of the display panel 10.

[0070] For example, Figure 3 As shown, the display panel 10 may include a plurality of filter layers 4 with different light emitting colors. For example, the plurality of 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 in the above-mentioned first sub-opening K11, the second color filter layer 42 is at least partially located in the above-mentioned second sub-opening K12, and the third color filter layer 43 is at least partially located in the above-mentioned third sub-opening K13.

[0071] Along the direction h2 perpendicular to the plane where the substrate 1 is located, 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 only allows the light of the first color to be emitted, the second color filter layer 42 only allows the light of the second color to be emitted, and the third color filter layer 43 only allows the light of the third color to be emitted.

[0072] For example, Figure 3 As shown, at least part of the filter layer 4 is located on a side of the light shielding layer 3 away from the substrate 1. Optionally, the light shielding layer 3 may be at least partly covered by the filter layer 4.

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

[0074] Exemplarily, at least one of the light-transmitting holes in the second display area A2, the light-transmitting holes in the first display area A1, and the light-transmitting holes in the third display area A3 includes a third opening. To facilitate the description of the embodiment of the present invention, the third opening in the first display area A1 is marked as a third sub-light-transmitting hole TK12, the third opening in the second display area A2 is marked as a fourth sub-light-transmitting hole TK22, and the third opening in the third display area A3 is marked as an eighth sub-light-transmitting hole TK32.

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

[0076] like Figure 3 As shown, the second light-transmitting hole TK2 further includes a fourth sub-light-transmitting hole TK22, and the fourth sub-light-transmitting hole TK22 penetrates the filter layer 4 located in the second display area A2. Along the direction h2 perpendicular to the plane where the substrate 1 is located, the fourth sub-light-transmitting hole TK22 and the second sub-light-transmitting hole TK21 at least partially overlap. The provision of the fourth sub-light-transmitting hole TK22 can further improve the reflectivity of the area where the second light-transmitting hole TK2 is located in the filter layer 4, thereby reducing the reflectivity difference between the second display area A2 and the first display area A1. This is conducive to further improving the consistency of the visual effects of different areas of the display panel 10 in the screen-off state.

[0077] like Figure 6As shown, the third light-transmitting hole TK3 further includes an eighth sub-light-transmitting hole TK32, and the eighth sub-light-transmitting hole TK32 penetrates the filter layer 4 located in the third display area A3. In a direction perpendicular to the plane where the substrate 1 is located, the eighth sub-light-transmitting hole TK32 and the seventh sub-light-transmitting hole TK31 at least partially overlap. The setting 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 working, the ambient light can pass through the filter layer 4 from one side of the display panel 10 through the eighth sub-light-transmitting hole TK32 to be emitted to the second optical sensor 102 located on the other side of the display panel 10.

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

[0079] It should be noted that the third sub-light-transmitting hole TK21, the fourth sub-light-transmitting hole TK22 and the eighth sub-light-transmitting hole 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-light-transmitting hole TK21 or the fourth sub-light-transmitting hole TK22. In this case, Figure 7 As shown, Figure 7 A schematic top view of a third color filter layer located in the second display area provided in an embodiment of the present invention, wherein the third color filter layer 43 includes a plurality of third color filter units 430 arranged at intervals, and the plurality of third color filter units 430 and the plurality of third color light emitting units 23 ( Figure 7 The third color light emitting unit 23 is indicated by a dotted line. The edge of at least part of the third color filter unit 430 includes a notch B, and the orthographic projection of the third sub-light-transmitting hole TK22 on the plane where the substrate 1 is located covers the orthographic projection of the notch B on the plane where the substrate 1 is located.

[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 on the plane where the substrate 1 is located can cover the orthographic projection of the third color light emitting unit 23 on the plane where the substrate 1 is located.

[0081] Or, if Figure 8 As shown, Figure 8A schematic top view of a first color filter layer located in a second display area provided by an embodiment of the present invention, wherein the first color filter layer 41 includes a plurality of first color filter units 410, at least some of which are connected to each other. In the first color filter layer 41, the first color filter units 410 are arranged at positions avoiding the second color light-emitting units 22 and the third color light-emitting units 23, that is, the first color filter layer 41 is arranged at positions avoiding 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 unit 21, the second color light emitting unit 22 and the third color light emitting unit 23 are indicated by dotted lines. In addition, a through hole is set at the position corresponding to the first light-transmitting hole ( Figure 8 A through hole is also required to be provided at the position of the second light-transmitting hole TK2 (not shown), and the through hole is the fourth sub-light-transmitting hole TK22.

[0082] Figure 7 and Figure 8 The shape of the fourth sub-light-transmitting hole TK22 is a polygon as an illustration. Of course, the shape of the fourth sub-light-transmitting hole TK22 can also be designed to be other shapes. The embodiment of the present invention does not limit the shape of the light-transmitting hole.

[0083] The hole-digging conditions of 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 in detail here.

[0084] For example, Figure 3 and Figure 6 As shown, the display panel 10 further includes an encapsulation layer 5, and the filter layer 4 is located on a side of the encapsulation layer 5 away from the light-emitting unit 2. The filter layer 4 can be reused as a polarizer, which can reduce the reflectivity of the display panel 10 and reduce the thickness of the display panel 10, which is beneficial to the thin and light design of the display panel.

[0085] Optionally, the encapsulation layer 5 includes a first encapsulation layer 51 , a second encapsulation layer 52 and a third encapsulation layer 53 which are stacked. The first encapsulation layer 51 and the third encapsulation layer 53 may include inorganic encapsulation layers, and the second encapsulation layer 52 may include an organic encapsulation layer.

[0086] Optional, such as Figure 3 and Figure 6 As shown, the display panel 10 further includes an optical adhesive layer 7. Exemplarily, in the embodiment of the present invention, the reflectivity of the first display area A1 and the second display area A2 can be further adjusted by adjusting the thickness of the optical adhesive layer 7.

[0087] For example, Figure 3 and Figure 6As shown, the display panel 10 further includes a pixel definition layer (Pixel Definition Layer, PDL for short) 6, which includes a pixel opening KP, and at least a portion of the light emitting unit 2 is located in the pixel opening KP; specifically, the pixel opening KP can be formed in a region overlapping the light emitting unit 2 to expose the first electrode 201 of the light emitting unit 2. The light emitting layer 200 located on a 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 invention, the pixel definition layer 6 further includes a fourth opening, and the fourth opening and the light-emitting unit 2 do not overlap in a direction perpendicular to the plane where the substrate 1 is located. At least one of the light-transmitting holes in the second display area A2, the light-transmitting holes in the first display area A1, and the light-transmitting holes in the third display area A3 includes a fourth opening. To facilitate the description of the embodiment of the present invention, the fourth opening in the first display area A1 is marked as the fifth sub-light-transmitting hole TK13, the fourth opening in the second display area A2 is marked as the sixth sub-light-transmitting hole TK23, and the fourth opening in the third display area A3 is marked as the ninth sub-light-transmitting hole TK33.

[0089] That is, if Figure 3 and Figure 6 As shown, the first light-transmitting hole TK1 further includes a fifth sub-light-transmitting hole TK13, and the fifth sub-light-transmitting hole TK13 penetrates the pixel definition layer 6 located in the first display area A1. Along the direction h2 perpendicular to the plane where the substrate 1 is located, the fifth sub-light-transmitting hole TK13 and the first sub-light-transmitting hole TK11 and the third sub-light-transmitting hole TK12 are at least partially overlapped. The provision of the fifth sub-light-transmitting hole TK13 can improve the light transmittance of the area where the first light-transmitting hole TK1 is located in the pixel definition layer 6. 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-transmitting hole TK13 to be emitted 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] like Figure 3 As shown, the second light-transmitting hole TK2 also includes a sixth sub-light-transmitting hole TK23, and the sixth sub-light-transmitting hole TK23 penetrates the pixel definition layer 6 located in the second display area A2. Along the direction h2 perpendicular to the plane where the substrate 1 is located, the sixth sub-light-transmitting hole TK23 overlaps at least partially with the second sub-light-transmitting hole TK21 and the fourth sub-light-transmitting hole TK22 respectively. The setting of the sixth sub-light-transmitting hole TK23 can further improve the reflectivity of the area where the second light-transmitting 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 effects of different areas of the display panel 10 in the screen-off state.

[0091] like Figure 6As shown, the third light-transmitting hole TK3 further includes a ninth sub-light-transmitting hole TK33, which penetrates the pixel definition layer 6 located in the third display area A3. Along 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 setting 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 working, the 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 project to the second optical sensor 102 located on the other side of the display panel 10.

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

[0093] In another optional embodiment, if Fig. 9 As shown, Fig. 9 A cross-sectional schematic diagram of another display panel provided by an embodiment of the present invention, wherein the second light-transmitting hole TK2 may only include the second sub-light-transmitting hole TK21 and the fourth sub-light-transmitting hole TK22. That is, the pixel definition layer 6 may not include the fourth opening in the second display area A2. Based on this arrangement, it is possible to avoid the reflectivity of the area where the second light-transmitting hole TK2 is located from increasing too much, and it is possible to ensure that the basic display effect of the second display area A2 is not affected.

[0094] In addition, when the target reflectivity of the second display area A2 is determined, by avoiding opening the fourth opening corresponding to the second light-transmitting hole TK2 in the pixel definition layer 6, it is also possible to avoid setting the area of ​​the single second light-transmitting hole TK2 too small. The smaller the area of ​​the second light-transmitting hole TK2, the higher the requirements for the exposure process. Therefore, adopting this setting method can reduce the process difficulty and help improve the process yield. Among them, the target reflectivity refers to the reflectivity of the second display area when the difference in reflectivity between the second display area and the first display area satisfies the problem of making it impossible for the naked eye to distinguish the brightness of the first display area.

[0095] Optional, such as Fig.10 As shown, Fig.10 for Figure 1 A schematic top view of a pixel definition layer in the middle area A01, along 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. Therefore, the larger the area of ​​the pixel opening KP, the greater the reflectivity of the area. In the embodiment of the present invention, by making the width of the pixel opening KP1 in the first display area A1 smaller than the width of the pixel opening KP2 in the second display area A2, the area of ​​the pixel opening KP in the first display area A1 can be smaller than the area of ​​the pixel opening KP in the second display area A2, so that the reflectivity of the light-emitting area where the light-emitting unit 2 in the first display area A1 is located can be made smaller than the reflectivity of the light-emitting area where the light-emitting unit 2 in the second display area A2 is located, thereby compensating 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 hole in the related art, and improving the consistency of the visual effect of the display panel 10 in the screen-off state.

[0097] It should be noted that if Fig.10 As shown, the first display area A1 and the second display area A2 each include a plurality of light emitting units 2 of different colors. Accordingly, 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. 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] like Fig.10 As shown, 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] Exemplarily, 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 setting, it is possible to avoid excessive difference in the area of ​​the pixel opening KP corresponding to the light-emitting units 2 of the same color in the first display area A1 and the second display area A2, and while reducing the difference in reflectivity between the first display area A1 and the second display area A2, it is possible to ensure that the lifespan and degree of color deviation of the light-emitting units 2 of the same color in the first display area A1 and the second display area A2 are consistent, which is conducive to improving display uniformity.

[0100] Optional, such as Fig.11 As shown, Fig.11 for Figure 1 A schematic top view of a light shielding layer in the middle area A01, along a 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 metal structures such as the second electrode 202 and the first electrode 201 of the light-emitting unit 2. Therefore, the larger the area of ​​the first opening K1, the greater the reflectivity of the area. In the embodiment of the present invention, by making the width of the first opening K1 in the first display area A1 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 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 in the first display area A1 is located can be less than or equal to the reflectivity of the light-emitting area where the light-emitting unit 2 in the second display area A2 is located, thereby further compensating for the overall reflectivity difference between the first display area A1 and the second display area A2 caused by the setting of the light-transmitting hole in the related art, and improving the consistency of the visual effect of the display panel 10 in the screen-off state.

[0102] It should be noted that if Fig.11 As shown, the first display area A1 and the second display area A2 both 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 both 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 Fig.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, the area of ​​the first opening K1 in the second display area A2 is S22, and 1%≤(S22-S12) / S22≤5%. Based on this setting, it is possible to avoid a large difference in the area of ​​the first opening K1 corresponding to the light-emitting units 2 of the same color in the first display area A1 and the second display area A2, and while reducing the difference in reflectivity between the first display area A1 and the second display area A2, it is possible to ensure that the color deviation of the light-emitting units 2 of the same color in the first display area A1 and the second display area A2 tends to be consistent, which is conducive to improving display uniformity.

[0105] Optional, such as Fig.12 and Fig.13 As shown, Fig.12 and Fig.13 The cross-sectional schematic diagram of the first display area and the second display area of ​​the other two display modules provided in the embodiment of the present invention, the display panel 10 includes a first pixel definition layer 61 and a second pixel definition layer 62 arranged in a stacked manner, the first pixel definition layer 61 is located on the side of the second pixel definition layer 62 close to the substrate 1; the transmittance of the first pixel definition layer 61 is less than or equal to the transmittance of the second pixel definition layer 62. Optionally, the first pixel definition layer 61 includes a black pixel definition layer (Black Pixel Definition Layer, referred to as BPDL), the first pixel definition layer 61 and the above-mentioned light shielding layer 3 can effectively absorb light, can further reduce ambient light reflection, improve display contrast, and improve the display effect of the display panel 10. The second pixel definition layer 62 includes a normal pixel definition layer (Normal Pixel Definition Layer, referred to as NPDL).

[0106] Exemplarily, 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. To facilitate the description of the embodiment of the present invention, the first pixel opening in the first display area A1 is labeled as a first sub-pixel opening KP11, and the second pixel opening in the first display area A1 is labeled as a second sub-pixel opening KP12. Also, the first pixel opening in the second display area A2 is labeled as a third sub-pixel opening KP21, and the second pixel opening in the second display area A2 is labeled as a fourth sub-pixel opening KP22.

[0107] That is to say, Fig.12 and Fig.13 As shown, the first pixel definition layer 61 includes a first sub-pixel opening KP11 and a third sub-pixel opening KP21, 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. The first sub-pixel opening KP11 and the third sub-pixel opening KP21 both penetrate the first pixel definition layer 61.

[0108] The second pixel definition layer 62 includes a second sub-pixel opening KP12 and a 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. The second sub-pixel opening KP12 and the fourth sub-pixel opening KP22 both penetrate the second pixel definition layer 62.

[0109] Along a direction h2 perpendicular to the plane of the substrate 1 , 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.

[0110] The embodiment of the present invention sets a first pixel definition layer 61 and a second pixel definition layer 62, and opens pixel openings in the first pixel definition layer 61 and the second pixel definition layer 62. By adjusting the widths of the two pixel openings respectively located in the first pixel definition layer 61 and the second pixel definition layer 62, the reflection area and the light-emitting area of ​​the light-emitting area where the light-emitting unit 20 is located in the first display area A1 and the second display area A2 can be adjusted separately. This helps to increase the design freedom of the display panel 10 while reducing the reflectivity difference between the first display area A1 and the second display area A2 and improving the consistency of visual effects.

[0111] Optionally, the embodiment of the present invention may allow the fourth opening to penetrate both the first pixel definition layer 61 and the second pixel definition layer 62. Alternatively, the embodiment of the present invention may allow the fourth opening to penetrate only the first pixel definition layer 61 having a lower light transmittance, that is, in the second pixel definition layer 62 having a higher light transmittance, no hole design is made in the area corresponding to the light-transmitting hole.

[0112] For example, Fig.12 and Fig.13 As shown, for the light-emitting units 2 having the same light-emitting color in the first display area A1 and the second display area A2, the embodiment of the present invention can make the width WP11 of the first sub-pixel opening KP11 equal to the width WP21 of the third sub-pixel opening KP21, and make the width WP12 of the second sub-pixel opening KP12 equal to the width WP22 of the fourth sub-pixel opening KP22. Fig.12 The width WP11 of the first sub-pixel opening KP11 is greater than the width WP12 of the second sub-pixel opening KP12 , and the width WP21 of the third sub-pixel opening KP21 is greater than the width WP22 of the fourth sub-pixel opening KP22 . Fig.13 For example, the width WP11 of the first sub-pixel opening KP11 is smaller than the width WP12 of the second sub-pixel opening KP12 , and the width WP21 of the third sub-pixel opening KP21 is smaller than the width WP22 of the fourth sub-pixel opening KP22 .

[0113] Or, if Fig.14 As shown, Fig.14 A cross-sectional schematic diagram of a first display area and a second display area of ​​another display module provided by an embodiment of the present invention, wherein the width WP11 of the first sub-pixel opening KP11 is smaller than the width WP12 of the second sub-pixel opening KP12, the width WP21 of the third sub-pixel opening KP21 is larger than the width WP22 of the fourth sub-pixel opening KP22, and the width WP11 of the first sub-pixel opening KP11 is equal to the width WP22 of the fourth sub-pixel opening KP22. The width direction of the first sub-pixel opening KP11 is parallel to the width direction of the fourth sub-pixel opening KP22.

[0114] In the embodiment of the present invention, the light-emitting region where the light-emitting unit 2 in the first display area A1 is located is the region where the first sub-pixel opening KP11 is located, and the light-emitting region where the light-emitting unit 2 in the second display area A2 is located is the region where the fourth sub-pixel opening KP22 is located. In the embodiment of the present invention, by making the width of the first sub-pixel opening KP11 equal to the width of the fourth sub-pixel opening KP22, the area of ​​the light-emitting region of the light-emitting unit 2 in the first display area A1 and the area of ​​the light-emitting region of the light-emitting unit 2 in the second display area A2 can be made the same, so that the lifespan and color deviation degree of the light-emitting units 2 of the same color can be made consistent, thereby improving the display uniformity of the first display area A1 and the second display area A2.

[0115] In addition, in the embodiment of the present invention, because the transmittance of the first pixel definition layer 61 is low, in the first display area A1 and the second display area A2, the reflective area in the light-emitting area is defined by the first pixel opening in the first pixel definition layer 61, that is, in the first display area A1, the reflective area in the light-emitting area is defined by the area where the first sub-pixel opening KP11 is located, and in the second display area A2, the reflective area in the light-emitting area is defined by the area where the third sub-pixel opening KP21 is located. The arrangement provided in the embodiment of the present invention can achieve the same area of ​​the light-emitting area of ​​the light-emitting unit 20 of the same light-emitting color in the first display area A1 and the second display area A2, while making the width of the first sub-pixel opening KP11 smaller than the width of the third sub-pixel opening KP21, so that the reflectivity in the light-emitting area in the first display area A1 can be smaller than the reflectivity in the light-emitting area in the second display area A2, thereby compensating 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 hole in the related art, and improving the consistency of the visual effect 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 a plurality of light-emitting units 2 of different colors. Accordingly, 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 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, which means that, for the pixel openings for accommodating 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 pixel opening in the first display area A1 is equal to the width of the second pixel opening in the second display area A2. Fig.14 The pixel openings for accommodating the first color light emitting unit in the first display area A1 and the second display area A2 are used as an example. The pixel openings for accommodating 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, Fig.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. The embodiment of the present invention can adjust the reflectivity increment in the opening area in the second display area A2 by adjusting the above d, thereby reducing the reflectivity difference with the first display area A1.

[0118] For example, Fig.14As shown, in the second display area A2, along the direction parallel to the plane where the substrate 1 is located, the distance d between the second pixel opening and the first pixel opening satisfies: 1μm≤d≤5μm. That is to say, 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, it is avoided that the distance d between the third sub-pixel opening KP21 and the fourth sub-pixel opening KP22 is set too large. When the width of the third sub-pixel opening KP21 is determined and the reflectivity is determined, it is possible to avoid setting the width of the fourth sub-pixel opening KP22 too small, thereby ensuring that the area of ​​the light-emitting region where the light-emitting unit 2 in the second display area A2 is located is not too small. And, when the width of the fourth sub-pixel opening KP22 is determined, it is possible to avoid setting the width of the third sub-pixel opening KP21 too large, thereby avoiding the reflectivity of the second display area A2 from being too large, which is conducive to ensuring the basic reflectivity specification requirements of the second display area A2.

[0119] For example, Figure 3 As shown, in the first display area A1, 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 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 where the substrate 1 is located 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; wherein, (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, and the large-angle light will be blocked by the non-opening position of the light-shielding layer 3 and cannot be emitted from the display panel 10. Among them, the angle between the propagation direction of the small-angle light and the normal of the plane where the substrate 1 is located is smaller than the angle between the propagation direction of the large-angle light and the normal of the plane where the substrate 1 is located. In the embodiment of the present 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, thereby improving the color deviation and life of the light-emitting units 2 in the first display area A1 and the second display area A2 to be consistent, which is beneficial to improving the display uniformity of different areas in the display panel 10.

[0122] Exemplarily, 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 may 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 the embodiment of the present invention, H1=H2, d1=d2, and W21=W22 may be set.

[0123] For example, Figure 3 and Figure 6 As shown, the display panel 10 further includes a driving circuit layer 20, and the driving circuit layer 20 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 are at least partially non-overlapping with the metal wiring and the transistor in the driving circuit layer 20, so as to avoid the metal wiring and the transistor from blocking the incident ambient light and affecting the 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, it is possible to avoid excessive increase in the reflectivity of the second display area A2, and while reducing the difference in reflectivity between the first display area A1 and the second display area A2, it is possible to ensure that the basic display effect of the second display area A2 is not affected.

[0125] Illustratively, the embodiment of the present invention is also combined with a comparative example to perform simulation verification on the reflectivity of the first display area and the second display area.

[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 a light-transmitting hole, and the reflectivity r01 of the area where a single light-transmitting hole in the first display area A1 is 32%, the total area of ​​the plurality of light-transmitting holes in the first display area A1 accounts for m01 of 1.8% in the display panel, and the reflectivity r00 of the non-hole-digging area in the second display area A2 is 4.4%. Then, the overall reflectivity R01 of the first display area A1 satisfies: R01=r01×m01=32%×1.8%=0.58%; in the area with 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×m01=4.4%×1.8%=0.08%. Therefore, in the comparative example, the overall reflectivity difference ΔR0 between the first display area A1 and the second display area A2 satisfies: ΔR0=R01-R02=0.5%.

[0127] In the embodiment of the present invention, the first display area A1 includes a plurality of first light-transmitting holes, and 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, and the reflectivity r12 of the area where a single second light-transmitting hole is located is 26%. The total area m11 of the plurality of first light-transmitting holes in the first display area A1 in the display panel accounts for 1.8%, and the total area m12 of the plurality of second light-transmitting holes in the second display area A2 in the display panel accounts for 0.8%. Then, the overall reflectivity R11 of the first display area A1 satisfies: R11=r11×m11=32%×1.8%=0.58%; in the area with the same area as the area where the plurality of first light-transmitting holes in the first display area A1 are located, the overall reflectivity R12 of the second display area A2 satisfies: R12=r12×m12+r00×(m11-m12)=26%×0.8%+4.4%×1.0%=0.21%+0.04%=0.25%. Therefore, in the embodiment of the present invention, the overall reflectivity difference ΔR1 between the first display area A1 and the second display area A2 satisfies: ΔR1=R11-R12=0.33%<ΔR0.

[0128] It can be seen that the configuration provided by the embodiment of the present invention can reduce the overall reflectivity difference between the first display area A1 and the second display area A2, which helps to improve the consistency of the visual effects 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-transmitting hole TK1, the second light-transmitting hole TK2, and the third light-transmitting hole TK3 shown are only for illustration, and the embodiment of the present invention does not limit this. For example, the embodiment of the present invention can set the shape of any one or more of the first light-transmitting hole TK1, the second light-transmitting hole TK2, and the third light-transmitting hole TK3 to be circular, elliptical, or a quasi-circular shape similar to a circle. Fig.15 As shown, Fig.15 for Figure 1 Another enlarged schematic diagram of the middle area A01, in which the shapes of the first light-transmitting hole TK1 and the second light-transmitting hole TK2 are designed to be circular as an illustration.

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

[0131] When the second light-transmitting hole TK2 is designed to be circular, the diffraction phenomenon of light in the external environment when passing through the second light-transmitting hole TK2 can be suppressed, which is beneficial 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 the light in the external environment when passing through the third light transmission hole TK3 can be suppressed, which is beneficial to improve the light intensity consistency of the ambient light passing through the third display area A3 at different positions and improve 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 are shown, and Figure 4 The shapes of the third display area A3 shown are for illustration only, and the embodiment of the present invention may 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, which is not limited in the embodiment of the present invention. Figure 1 It is taken as an example that 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 a circle, and the shapes of the second display area A2 and the third display area A3 are set to be a quadrilateral.

[0134] Based on the same inventive concept, an embodiment of the present invention further provides a display device, such as Fig.16 As shown, Fig.16The following is a schematic diagram of a display device provided by an embodiment of the present invention, wherein the display device includes 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 repeated here. Fig.16 The display device shown is only for illustration, and the display device may be any device with a display function, such as a mobile phone, a tablet computer, a laptop computer, an e-book, a television, a smart watch, etc. The embodiments of the present invention are not limited to this.

[0135] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0136] In this specification, the same or similar parts between the various embodiments can be referred to each other. In particular, for the device embodiment and the terminal embodiment, since they are basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description in the method embodiment.

Claims

1. A display module, characterized in that: comprising 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 the light transmittance of the second display area; The first display area and the second display area both 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 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.

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, the third display area 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: A second optical sensor is also included. Along a direction perpendicular to the plane where the substrate is located, the second optical sensor and the third display area at least partially overlap.

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

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

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

8. The display module according to claim 1, characterized in that: The display panel further comprises a first pixel definition layer and a second pixel definition layer which are stacked, wherein the first pixel definition layer is located on a side of the second pixel definition layer close to the substrate; The light transmittance of the first pixel definition layer is less than or equal to the light transmittance of the second pixel definition layer; The first pixel definition layer comprises a first pixel opening, and the second pixel definition layer comprises a second pixel opening, and the first pixel opening and the second pixel opening at least partially overlap in a direction perpendicular to the plane where the substrate is located; At least a portion of the light emitting unit is located within the first pixel opening and the second pixel opening.

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

10. The display module according to claim 8, 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.

11. The display module according to claim 8, characterized in that: In the second display area, along a direction parallel to the plane where the substrate is located, a distance d between the second pixel opening and the first pixel opening satisfies: 1 μm≤d≤5 μm.

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

14. The display module according to claim 1, characterized in that: The display panel further includes a light shielding layer, the light shielding layer includes a first opening; along a direction perpendicular to the plane where the substrate is located, the light emitting unit at least partially overlaps with the first opening; Along a direction parallel to the plane where the substrate is located, 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 where the substrate is located 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 where the substrate is located is H2; Among them, (W21+d1) / H1=(W22+d2) / H2.

15. 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; The light-emitting units and the light-transmitting holes in the first group are respectively overlapped with the light-emitting units and the light-transmitting holes in the second group after translation.

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

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

18. A display device, characterized in that: A display module comprising any one of claims 1-18.

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