Display module and display device

By setting multiple light transmission areas, light shielding areas and reverse reduction structures in the display module, and adjusting the reflection ability of the reverse reduction structure during different working periods, the display quality problems caused by the reflected light of the photosensitive element are solved, and more efficient light management and display effect are achieved.

CN115565456BActive Publication Date: 2025-03-07HUBEI YANGTZE IND INNOVAION CENT OF ADVANCED DISPLAY CO LTD
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Patent Information

Application Number
CN202211366478.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-01
Publication Date
2025-03-07
Estimated Expiration
2042-11-01

AI Technical Summary

Technical Problem

In the conventional display device, the light reflected on the surface of the photosensitive element causes the light to face the corresponding photosensitive element area to be high, affecting the display quality.

Method used

A display module is designed, including a display panel and a photosensitive element. The display panel overlaps the photosensitive element in the thickness direction, and multiple light-transmitting areas, light-shielding areas and reverse-reverse structures are provided. The reflective ability of the reflected light in different working periods is different to optimize the reflection and transmission of light.

Benefits of technology

By adjusting the reflection capability of the reverse reduction structure during different working periods, the photosensitive element can ensure that sufficient light is received during working periods, reduce reflected light, reduce the reflectivity of the light-transmitting display area, and improve display quality.

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Abstract

The embodiment of the present application provides a display module and a display device, wherein the display module includes a display panel and a photosensitive element; the display panel includes a light-transmitting display area, and the light-transmitting display area overlaps with the photosensitive element along the thickness direction of the display module; the light-transmitting display area includes multiple light-transmitting areas and multiple anti-reflection structures, and the anti-reflection structures at least partially overlap with the light-transmitting areas along the thickness direction of the display module, and the anti-reflection structures are used to reflect external light to the anti-reflection structures adjacent thereto; the ability of the anti-reflection structures to reflect the reflected light received by the anti-reflection structures to the photosensitive element during the first working period of the display module is greater than the ability of the anti-reflection structures to reflect the reflected light received by the anti-reflection structures to the photosensitive element during the second working period of the display module. The present application can meet the working requirements of the photosensitive element during the first working period, and reduce the amount of light reflected by the photosensitive element during the second working period, which is conducive to reducing the reflectivity of the light-transmitting display area and improving the display quality of the display module.
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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 technology]

[0002] In existing display devices, a photosensitive element (such as a camera) is usually integrated to enrich the functions of the display device. At the same time, in order to increase the screen-to-body ratio of the display device, the area of ​​the light-emitting surface of the display device corresponding to the photosensitive element can also be used for display.

[0003] However, during display, the surface of the photosensitive element will reflect light, resulting in a higher reflectivity in the area of ​​the light-emitting surface of the display device corresponding to the photosensitive element, which affects the display quality.

[0004]

Application Contents

[0005] In view of this, embodiments of the present application provide a display module and a display device to solve the above problems.

[0006] In a first aspect, an embodiment of the present application provides a display module, comprising a display panel and a photosensitive element; the display panel comprises a light-transmitting display area, and the light-transmitting display area overlaps with the photosensitive element along the thickness direction of the display module; the light-transmitting display area comprises a plurality of light-transmitting areas, a plurality of light-shielding areas and a plurality of anti-reflection structures, and the light-transmitting areas and the light-shielding areas are alternately arranged, and along the thickness direction of the display module, the anti-reflection structure at least partially overlaps with the light-transmitting areas, and the anti-reflection structure is used to reflect external light onto the anti-reflection structure adjacent to it; wherein the display module comprises a first working period and a second working period, and the ability of the anti-reflection structure to reflect the reflected light it receives to the photosensitive element in the first working period is greater than the ability of the anti-reflection structure to reflect the reflected light it receives to the photosensitive element in the second working period.

[0007] In an implementation of the first aspect, the anti-reflection structure includes a first reflective film layer and a second reflective film layer, at least a portion of the first reflective film layer is located on the side of the second reflective film layer facing the light emitting surface of the display panel, and the first reflective film layer in the anti-reflection structure is used to reflect external light to the second reflective film layer in the adjacent anti-reflection structure.

[0008] In an implementation of the first aspect, the ability of the second reflective film layer to reflect the reflected light received by it to the photosensitive element in the first working period is greater than the ability of the second reflective film layer to reflect the reflected light received by it to the photosensitive element in the second working period.

[0009] In an implementation manner of the first aspect, in a first working period, the second reflective film layer is a transparent structure, and in a second working period, the second reflective film layer is a non-transparent structure.

[0010] In an implementation of the first aspect, the second reflective film layer includes an electrochromic material, the second reflective film layer is not energized in a first working period, and the second reflective film layer is energized in a second working period.

[0011] In an implementation of the first aspect, the first reflective film layer includes a first inclined surface, and the second reflective film layer includes a second inclined surface; the first inclined surface is used to reflect external light to the second inclined surface in the adjacent reflection reduction structure.

[0012] In an implementation manner of the first aspect, the first inclined surface is a surface of the first reflective film layer away from the second reflective film layer, and the second inclined surface is a surface of the second reflective film layer away from the first reflective film layer.

[0013] In an implementation manner of the first aspect, in the same anti-reflection structure, the first inclined surface is parallel to the second inclined surface.

[0014] In an implementation manner of the first aspect, an angle between the second inclined surface and the plane where the display panel is located is α, and 30°≤α≤60°.

[0015] In an implementation manner of the first aspect, the second inclined surfaces of at least some of the reflection reduction structures have the same inclined direction.

[0016] In a second aspect, an embodiment of the present application provides a display device, comprising a display panel provided in the first aspect.

[0017] In the embodiment of the present application, the ability of the anti-reflection structure to reflect light to the photosensitive element in the first working period of the display module is relatively large, which can ensure that the photosensitive element receives a sufficient amount of light in the first working period, thereby meeting the working requirements of the photosensitive element and ensuring the working effect of the photosensitive element. At the same time, the ability of the anti-reflection structure to reflect light to the photosensitive element in the second working period of the display module is relatively small, which can reduce the amount of light received by the photosensitive element in the second working period, thereby reducing the amount of light reflected by the photosensitive element, which is conducive to reducing the reflectivity of the light-transmitting display area in the second working period, improving the display effect of the light-transmitting display area, and further helping to improve the display quality of the display module.

Brief Description of the Drawings

[0018] 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 work.

[0019] Figure 1 A schematic diagram of the structure of a display module provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of a display panel provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of another display panel provided in an embodiment of the present application;

[0022] Figure 4 A schematic diagram of a partial structure of a display module provided in an embodiment of the present application;

[0023] Figure 5 A schematic diagram of a reflection reduction structure provided in an embodiment of the present application;

[0024] Figure 6 A schematic diagram of a partial structure of another display module provided in an embodiment of the present application;

[0025] Figure 7 A schematic diagram of a partial structure of another display module provided in an embodiment of the present application;

[0026] Figure 8 A schematic diagram of a display device provided in an embodiment of the present application. [Specific implementation method]

[0027] 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.

[0028] 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.

[0029] 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.

[0030] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated 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 associated objects before and after are in an "or" relationship.

[0031] In the description of this specification, it is necessary to understand that the words such as "substantially", "approximately", "approximately", "about", "roughly", "substantially" and the like described in the claims and embodiments of the present application refer to what can be generally recognized within a reasonable process operation range or tolerance range, rather than an exact value.

[0032] It should be understood that although the terms first, second, etc. may be used to describe the working period, the reflective film layer, the inclined surface, etc. in the embodiments of the present application, these working periods, the reflective film layer, the inclined surface, etc. should not be limited to these terms. These terms are only used to distinguish the working period, the reflective film layer, the inclined surface, etc. from each other. For example, without departing from the scope of the embodiments of the present application, the first working period may also be referred to as the second working period, and similarly, the second working period may also be referred to as the first working period.

[0033] The applicant in this case has provided a solution to the problems existing in the prior art through careful and in-depth research.

[0034] Figure 1 A schematic diagram of the structure of a display module provided in an embodiment of the present application is shown in FIG. Figure 2 A schematic diagram of a display panel provided in an embodiment of the present application, Figure 3 A schematic diagram of another display panel provided in an embodiment of the present application, Figure 4 A schematic diagram of the partial structure of a display module provided in an embodiment of the present application.

[0035] The present application embodiment provides a display module 100, such as Figure 1 As shown, the display module 100 includes a display panel 01 and a photosensitive element 02, and the photosensitive element 02 can be an electronic device such as a camera, an infrared identifier, etc. The display panel 01 includes a main display area AA and a light-transmitting display area BB, the light transmittance of the light-transmitting display area BB is greater than the light transmittance of the main display area AA, and the main display area AA surrounds at least part of the light-transmitting display area BB.

[0036] Alternatively, if Figure 2 As shown, the light-transmitting display area BB is completely surrounded by the main display area AA.

[0037] Alternatively, if Figure 3 As shown, the main display area AA surrounds part of the light-transmitting display area BB.

[0038] In which, along the thickness direction Z of the display module 100 , the light-transmitting display area BB overlaps with the photosensitive element 02 .

[0039] Specifically, along the thickness direction Z of the display module 100 , the light-transmitting display area BB covers the photosensitive element 02 .

[0040] It should be noted that in the embodiment of the present application, the light-transmitting display area BB is a light-transmitting display area in a macroscopic sense. Since the display panel 01 usually also includes opaque devices (such as metal wiring, black matrix, etc.), and these opaque devices are usually also arranged in the light-transmitting display area BB, therefore, at the microscopic level, the light-transmitting display area BB may include opaque areas.

[0041] Combination Figure 1 and Figure 4 As shown, the light-transmitting display area BB includes a plurality of light-transmitting areas B1 and a plurality of light-shielding areas B2 . The light-transmitting areas B1 and the light-shielding areas B2 can be arranged alternately, and external light can enter the photosensitive element 02 through the light-transmitting areas B1 .

[0042] The light-transmitting display area BB also includes a plurality of anti-reflection structures 11. Along the thickness direction Z of the display module 100, the anti-reflection structures 11 at least partially overlap with the light-transmitting area B1, that is, the anti-reflection structures 11 may be at least partially located in the light-transmitting area B1, and external light may be transmitted to the anti-reflection structures 11 through the light-transmitting area B1. The anti-reflection structures 11 are used to reflect external light to the anti-reflection structures 11 adjacent thereto, and at the same time, the anti-reflection structures 11 are also used to reflect the reflected light received by them to the photosensitive element 02.

[0043] That is to say, the anti-reflection reduction structure 11 can reflect external light to the anti-reflection reduction structure 11 adjacent to it, and at the same time, the anti-reflection reduction structure 11 can also reflect the reflected light received from the adjacent anti-reflection reduction structure 11 to the photosensitive element 02.

[0044] For example, Figure 4 As shown, the plurality of anti-reflection reduction structures 11 include a first anti-reflection reduction structure 111, a second anti-reflection reduction structure 112, and a third anti-reflection reduction structure 113 which are adjacent to each other in sequence along the first direction X. The first anti-reflection reduction structure 111 can reflect the external light received by it to the second anti-reflection reduction structure 112, and the second anti-reflection reduction structure 112 can reflect the external light received by it to the third anti-reflection reduction structure 113. At the same time, the second anti-reflection reduction structure 112 also reflects the reflected light received from the first anti-reflection reduction structure 111 to the photosensitive element 02, and the third anti-reflection reduction structure 113 reflects the reflected light received from the second anti-reflection reduction structure 112 to the photosensitive element 02. The first direction X intersects with the thickness direction Z of the display module 100.

[0045] The display module 100 includes a first working period and a second working period, and the photosensitive element 02 can be turned on in the first working period and turned off in the second working period. The ability of the anti-reflection structure 11 to reflect the reflected light received by it to the photosensitive element 02 in the first working period is greater than the ability of the anti-reflection structure 11 to reflect the reflected light received by it to the photosensitive element 02 in the second working period. That is, the amount of light received by the photosensitive element 02 in the first working period of the display module 100 is greater than the amount of light received by it in the second working period of the display module 100.

[0046] It is understandable that when the photosensitive element 02 is turned on, the light-transmitting display area BB in the display panel 01 cannot display, and when the photosensitive element 02 is turned off, the light-transmitting display area BB can display. In other words, the light-transmitting display area BB cannot display in the first working period of the display module 100, and can display in the second working period of the display module 100.

[0047] In the prior art, in order to ensure the working effect of the photosensitive element 02, it is usually necessary to make the photosensitive element 02 receive a sufficient amount of light during the first working period of the display module 100. When the light-transmitting display area BB is displaying, the more light the photosensitive element 02 receives, the more light it will reflect, and these reflected lights will be emitted through the light-transmitting display area BB, resulting in an increase in the reflectivity of the light-transmitting display area BB, affecting the display effect of the light-transmitting display area BB, and further affecting the display quality of the display panel 01.

[0048] The inventors of the present application have considered that the working period of the photosensitive element 02 is different from the display period of the light-transmitting display area BB, so providing a reflection reduction structure in the display module 100 that can reflect light to the photosensitive element 02 and has different reflection capabilities in different periods has become a solution.

[0049] In the embodiment of the present application, the anti-reflection structure 11 is set to have a greater ability to reflect light to the photosensitive element 02 during the first working period of the display module 100, which can ensure that the photosensitive element 02 receives a sufficient amount of light during the first working period, thereby meeting the working requirements of the photosensitive element 02 and ensuring the working effect of the photosensitive element 02. At the same time, the anti-reflection structure 11 is set to have a smaller ability to reflect light to the photosensitive element 02 during the second working period of the display module 100, which can reduce the amount of light received by the photosensitive element 02 during the second working period, thereby reducing the amount of light reflected by the photosensitive element 02, which is beneficial to reducing the reflectivity of the light-transmitting display area BB during the second working period, improving the display effect of the light-transmitting display area BB, and further beneficial to improving the display quality of the display module 100.

[0050] Figure 5 A schematic diagram of a reduced-reflection structure provided in an embodiment of the present application, Figure 6 A schematic diagram of the partial structure of another display module provided in an embodiment of the present application.

[0051] Combination Figure 4 and Figure 5 As shown, in one embodiment of the present application, the anti-reflection structure 11 includes a first reflective film layer 21 and a second reflective film layer 22, at least a portion of the first reflective film layer 21 is located on the side of the second reflective film layer 22 facing the light emitting surface of the display panel 01, and the first reflective film layer 21 in the anti-reflection structure 11 is used to reflect external light to the second reflective film layer 22 in the adjacent anti-reflection structure 11.

[0052] Furthermore, the second reflective film layer 22 is used to reflect the reflected light received by it to the photosensitive element 02 .

[0053] For details, please continue to refer to Figure 5 The first reflective film layer 21 includes a first inclined surface 21A, and the second reflective film layer 22 includes a second inclined surface 22A. The first inclined surface 21A is used to reflect external light to the second inclined surface 22A in the adjacent reduced-reflection structure 11. The second inclined surface 22A reflects the reflected light it receives to the photosensitive element 02.

[0054] That is, in the anti-reflection structure 11 , the first reflective film layer 21 and the second reflective film layer 22 may both include inclined surfaces, and reflect light through the inclined surfaces.

[0055] Of course, when external light passes through the light-transmitting area B1 and irradiates the first reflective film layer 21, at least part of the external light can be irradiated on the first inclined surface 21A; and when the first reflective film layer 21 reflects light toward the second reflective film layer 22 of the adjacent anti-reflection structure 11, at least part of the reflected light is reflected onto the second inclined surface 22A of the adjacent anti-reflection structure 11.

[0056] Optionally, the first reflective film layer 21 and the second reflective film layer 22 are stacked, and along the stacking direction of the first reflective film layer 21 and the second reflective film layer 22, the first inclined surface 21A is the surface of the first reflective film layer 21 away from the second reflective film layer 22, and the second inclined surface 22A is the surface of the second reflective film layer 22 away from the first reflective film layer 21. This ensures that the first inclined surface 21A can reflect more external light onto the adjacent anti-reflection structure 11, and the second inclined surface 22A of the adjacent anti-reflection structure 11 can receive more reflected light and reflect the reflected light to the photosensitive element 02.

[0057] In the present application embodiment, Figure 6As shown, external light can pass through the light-transmitting area B1 to irradiate the first reflective film layer 21 of the anti-reflection structure 11. The first reflective film layer 21 reflects the received external light to the second reflective film layer 22 of the adjacent anti-reflection structure 11. The second reflective film layer 22 of the adjacent anti-reflection structure 11 then reflects the received reflected light to the photosensitive element 02, thereby enabling the photosensitive element 02 to receive the light, and further ensuring the normal operation of the photosensitive element 02.

[0058] It should be noted that, in the embodiment of the present application, both the first inclined surface 21A and the second inclined surface 22A are inclined relative to the plane where the display panel 01 is located.

[0059] Furthermore, in some other embodiments, the anti-reflection structure 11 may also include only one film layer, and the first inclined surface 21A and the second inclined surface 22A may be two inclined surfaces of the film layer.

[0060] Please continue to refer to Figure 5 and Figure 6 In one embodiment of the present application, in the same anti-reflection structure 11, the first inclined surface 21A is parallel to the second inclined surface 22A, that is, the angle between the first inclined surface 21A and the plane where the display panel 01 is located is the same as the angle between the second inclined surface 22A and the plane where the display panel 01 is located.

[0061] Alternatively, if Figure 6 As shown, the included angle between the second inclined surface 22A and the plane where the display panel 01 is located is α, 30°≤α≤60°. Of course, the included angle between the first inclined surface 21A and the plane where the display panel 01 is located is also α.

[0062] Preferably, α=45°.

[0063] In the display panel 01, adjacent anti-reflection structures 11 can be arranged at the same height. Figure 6 As shown, when α=45°, according to the principle of light reflection, the light irradiated into the first inclined surface 21A along the thickness direction Z of the display module 100 can be horizontally transmitted to the second inclined surface 22A in the adjacent anti-reflection structure 11, and the second inclined surface 22A reflects the received light along the thickness direction Z of the display module 100 to the photosensitive element 02. While ensuring that as much light as possible can be transmitted to the photosensitive element 02, it is helpful to reduce the transmission distance of the light received by the photosensitive element 02.

[0064] It is understandable that when α=30° or α=60°, although the amount of light transmitted to the photosensitive element 02 is less than when α=45°, there is still enough light that can be transmitted to the photosensitive element 02, which can also meet the working needs of the photosensitive element 02.

[0065] The embodiment of the present application can transmit as much external light as possible to the photosensitive element 02, which is beneficial to ensuring the working effect of the photosensitive element 02. At the same time, the transmission distance of the light received by the photosensitive element 02 can be shorter, which is beneficial to reduce the loss of light, thereby helping to further ensure the working quality of the photosensitive element 02.

[0066] In one embodiment of the present application, Figure 5 In the reduced-reflection structure 11 shown, the ability of the second reflective film layer 22 to reflect the reflected light received by it to the photosensitive element 02 in the first working period is greater than the ability of the second reflective film layer 22 to reflect the reflected light received by it to the photosensitive element 02 in the second working period. That is, in the same reduced-reflection structure 11, the second reflective film layer 22 reflects more of the reflected light received by it to the photosensitive element 02 in the first working period, and reflects less of the reflected light received by it to the photosensitive element 02 in the second working period.

[0067] Specifically, in the first working period, the second reflective film layer 22 is a transparent structure, and in the second working period, the second reflective film layer 22 is a non-transparent structure.

[0068] In the embodiment of the present application, the second reflective film layer 22 is set to have a greater ability to reflect light to the photosensitive element 02 during the first working period of the display module 100, which can ensure that the photosensitive element 02 receives a sufficient amount of light during the first working period, thereby meeting the working requirements of the photosensitive element 02 and ensuring the working effect of the photosensitive element 02. At the same time, the second reflective film layer 22 is set to have a smaller ability to reflect light to the photosensitive element 02 during the second working period of the display module 100, which can reduce the amount of light received by the photosensitive element 02 during the second working period, thereby reducing the amount of light reflected by the photosensitive element 02, which is beneficial to reducing the reflectivity of the light-transmitting display area BB during the second working period, improving the display effect of the light-transmitting display area BB, and further beneficial to improving the display quality of the display module 100.

[0069] In addition, in the embodiment of the present application, the second reflective film layer 22 has different reflective capabilities in the first working period and the second working period. While ensuring the working effect of the photosensitive element 02 and reducing the reflectivity of the light-transmitting display area BB in the second working period, only the second reflective film layer 22 in the anti-reflection structure 11 needs to be processed (such as material selection, applied voltage, etc.), and there is no need to process the entire anti-reflection structure 11, which is beneficial to reducing the cost of the display module 100.

[0070] In one embodiment of the present application, the reflection capability of the first reflective film layer 21 in the first working period and the second working period may be the same.

[0071] It is understandable that in order to ensure the working effect of the photosensitive element 02, the first reflective film layer 21 has a greater reflective ability in the first working period. In addition, the inventor of the present application considers that since the first reflective film layer 21 is located on the side of the second reflective film layer 22 close to the light-emitting surface of the display panel 01, when the light-transmitting display area BB is displayed, that is, in the second working period of the display module 100, the light emitted by the light-emitting device in the display panel 01 will usually also irradiate the first reflective film layer 21. If the reflective ability of the first reflective film layer 21 in the second working period is set to be smaller, it is not conducive to reflecting the light emitted by the light-emitting device.

[0072] Therefore, in the embodiment of the present application, the first reflective film layer 21 is arranged to have the same reflective ability in the second working period as in the first working period, so that the first reflective film layer 21 also has a large reflectivity in the second working period, so that the part of the light emitted by the light-emitting device that is irradiated on the first reflective film layer 21 can be reflected more, which is beneficial to ensure the light brightness of the light-transmitting display area BB.

[0073] Furthermore, the state of the first reflective film layer 21 in the first working period and the second working period can be the same, so there is no need to perform additional processing on the first reflective film layer 21 , which is beneficial to further reduce the cost of the display module 100 .

[0074] In one embodiment of the present application, the second reflective film layer 22 includes an electrochromic material, which has a higher transparency when no electricity is supplied, and a lower transparency when electricity is supplied.

[0075] Optionally, the electrochromic material has a transparent structure when no electricity is supplied, and has a non-transparent structure when electricity is supplied.

[0076] In the first working period, the second reflective film layer 22 is not energized, and in the second working period, the second reflective film layer 22 is energized.

[0077] The electrochromic material may be an inorganic electrochromic material or an organic electrochromic material.

[0078] Optionally, the second reflective film layer 22 includes tungsten trioxide.

[0079] Optionally, the second reflective film layer 22 includes at least one of polythiophene and its derivatives, viologens, tetrathiafulvalene, and metal phthalocyanine compounds.

[0080] It can be seen from the characteristics of electrochromic materials that electrochromic materials can undergo stable and reversible color changes under the action of an external electric field, which is manifested in the appearance as reversible changes in color and transparency. For example, when no electric field is applied, the transparency of the electrochromic material is high, and when an electric field is applied, the transparency of the electrochromic material is low. The embodiment of the present application can realize the conversion of the second reflective film layer 22 between the transparent state and the colored non-transparent state by whether the second reflective film layer 22 is energized.

[0081] It can be understood that materials with higher transparency absorb less light and generally have stronger ability to reflect light, while materials with lower transparency absorb more light and generally have weaker ability to reflect light.

[0082] In the embodiment of the present application, in the first working period, the second reflective film layer 22 is not powered, so that the second reflective film layer 22 can have a higher transparency, which is conducive to reflecting more of the reflected light received by it to the photosensitive element 02 to meet the working requirements of the photosensitive element 02. In the second working period, the second reflective film layer 22 is powered, which can reduce the transparency of the second reflective film layer 22 and reduce its light reflection ability, so that the amount of light received by the photosensitive element 02 is less, and then the amount of light reflected by the photosensitive element 02 can be reduced, which is conducive to reducing the reflectivity of the light-transmitting display area BB in the second working period, improving the display effect of the light-transmitting display area BB, and then helping to improve the display quality of the display module 100.

[0083] Figure 7 A schematic diagram of the partial structure of another display module provided in an embodiment of the present application.

[0084] In one embodiment of the present application, at least part of the second inclined surfaces 22A of the reflection reducing structures 11 have the same inclined direction.

[0085] That is to say, in the display module 100, the inclination directions of the second inclined surfaces 22A in all the anti-reflection structures 11 can be set to be the same, or the inclination directions of the second inclined surfaces 22A in some of the anti-reflection structures 11 can be set to be the same and different from the inclination directions of the second inclined surfaces 22A in other parts of the anti-reflection structures 11.

[0086] For example, Figure 6 and Figure 7 As shown, in the display module 100, the second inclined surface 22A in the anti-reflection structure 11 includes a first end 22A1 and a second end 22A2, and along the thickness direction Z of the display module, the distance between the second end 22A2 and the light-emitting surface of the display panel 01 is smaller than the distance between the first end 22A1 and the light-emitting surface of the display panel 01. The plurality of anti-reflection structures 11 are arranged along the first direction X, and the first direction X intersects with the thickness direction Z of the display module 100.

[0087] Alternatively, if Figure 6 As shown, along the first direction X, the second ends 22A2 of the second inclined surfaces 22A of all the anti-reflection structures 11 are located on the same side of the corresponding first ends 22A1. That is, the second inclined surfaces 22A of all the anti-reflection structures 11 have the same inclination direction.

[0088] Alternatively, if Figure 7 As shown, the multiple anti-reflection reduction structures 11 include a first-type anti-reflection reduction structure 11A and a second-type anti-reflection reduction structure 11B. Along the first direction X, in the second inclined surfaces 22A of all the first-type anti-reflection reduction structures 11A, the second ends 22A2 are located on the same side of the corresponding first ends 22A1, that is, the inclination directions of the second inclined surfaces 22A in all the first-type anti-reflection reduction structures 11A are the same; in the second inclined surfaces 22A of all the second-type anti-reflection reduction structures 11B, the second ends 22A2 are located on the same side of the corresponding first ends 22A1, that is, the inclination directions of the second inclined surfaces 22A in all the second-type anti-reflection reduction structures 11B are the same; and the second ends 22A2 of the first-type anti-reflection reduction structure 11A and the second ends 22A2 of the second-type anti-reflection reduction structure 11B are respectively located on different sides of the corresponding first ends 22A1, that is, the inclination directions of the second inclined surfaces 22A in the first-type anti-reflection reduction structure 11A and the second-type anti-reflection reduction structure 11B are different.

[0089] The embodiments of the present application can enrich the configuration of the anti-reflection structure 11 in the display module 100 , which is beneficial to improving the diversified design of the display module 100 .

[0090] Figure 8 A schematic diagram of a display device provided in an embodiment of the present application.

[0091] The embodiment of the present application provides a display device 200, which includes the display module 100 provided in the above embodiment. The display device 200 provided in the embodiment of the present application can be an electronic device such as a mobile phone, a computer, a television, and a vehicle-mounted display device, and the embodiment of the present application does not specifically limit it.

[0092] In the display device 200, the ability of the anti-reflection structure 11 to reflect light to the photosensitive element 02 in the first working period of the display module 100 is relatively large, which can ensure that the photosensitive element 02 receives a sufficient amount of light in the first working period, thereby meeting the working requirements of the photosensitive element 02 and ensuring the working effect of the photosensitive element 02. At the same time, the ability of the anti-reflection structure 11 to reflect light to the photosensitive element 02 in the second working period of the display module 100 is relatively small, which can reduce the amount of light received by the photosensitive element 02 in the second working period, thereby reducing the amount of light reflected by the photosensitive element 02, which is beneficial to reducing the reflectivity of the light-transmitting display area BB in the second working period, improving the display effect of the light-transmitting display area BB, and further beneficial to improving the display quality of the display device 200.

[0093] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A display module, characterized in that: It includes a display panel and a photosensitive element; the display panel includes a light-transmitting display area, and along the thickness direction of the display module, the light-transmitting display area overlaps with the photosensitive element; the light-transmitting display area includes: A plurality of light-transmitting areas and a plurality of light-shielding areas, wherein the light-transmitting areas and the light-shielding areas are arranged alternately; A plurality of anti-reflection structures, wherein the anti-reflection structures at least partially overlap with the light-transmitting area along the thickness direction of the display module, and the anti-reflection structures are used to reflect external light onto the anti-reflection structures adjacent thereto; The display module includes a first working period and a second working period, and the ability of the anti-reflection structure to reflect the reflected light received by it to the photosensitive element in the first working period is greater than the ability of the anti-reflection structure to reflect the reflected light received by it to the photosensitive element in the second working period; The anti-reflection structure includes a first reflective film layer and a second reflective film layer, at least part of the first reflective film layer is located on the side of the second reflective film layer facing the light emitting surface of the display panel, and the first reflective film layer in the anti-reflection structure is used to reflect external light to the second reflective film layer in the adjacent anti-reflection structure.

2. The display module according to claim 1, characterized in that: The ability of the second reflective film layer to reflect the reflected light received by it to the photosensitive element during the first working period is greater than the ability of the second reflective film layer to reflect the reflected light received by it to the photosensitive element during the second working period.

3. The display module according to claim 2, characterized in that: In the first working period, the second reflective film layer is a transparent structure, and in the second working period, the second reflective film layer is a non-transparent structure.

4. The display module according to claim 2, characterized in that: The second reflective film layer includes an electrochromic material. In the first working period, the second reflective film layer is not energized, and in the second working period, the second reflective film layer is energized.

5. The display module according to claim 2, characterized in that: The first reflective film layer includes a first inclined surface, and the second reflective film layer includes a second inclined surface; The first inclined surface is used to reflect external light to the second inclined surface in the adjacent reflection reduction structure.

6. The display module according to claim 5, characterized in that: The first inclined surface is a surface of the first reflective film layer away from the second reflective film layer, and the second inclined surface is a surface of the second reflective film layer away from the first reflective film layer.

7. The display module according to claim 5, characterized in that: In the same anti-reflection structure, the first inclined surface is parallel to the second inclined surface.

8. The display module according to claim 7, characterized in that: The included angle between the second inclined surface and the plane where the display panel is located is α, and 30°≤α≤60°.

9. The display module according to claim 5, characterized in that: The inclination directions of at least some of the second inclined surfaces of the anti-reflection reducing structures are the same.

10. A display device, characterized in that: Comprising a display module as described in any one of claims 1-9.

Citation Information

Patent Citations

  • Under-screen optical fingerprint module, display screen assembly and electronic equipment

    CN110796097A

  • Display panel, driving method thereof and display device

    CN111029390A