CN215986592U

CN215986592U - Light filtering piece, display module and electronic equipment

Info

Publication number: CN215986592U
Application number: CN202122495437.5U
Authority: CN
Inventors: 雷紫茜; 李佳缙
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-03-08
Anticipated expiration: 2031-10-15

Abstract

The utility model discloses a light filtering piece, a display module and electronic equipment. The light filtering piece comprises a light blocking layer and a filter layer; the light blocking layer is provided with a first light transmitting area which is arranged towards the photosensitive element, and the light transmittance of the first light transmitting area is reduced from the set position to other edge directions; and the filter layer is embedded in the light blocking layer and comprises a plurality of optical filters arranged on the light blocking layer at intervals, and the color of light rays allowed to penetrate through the optical filters is the same as the light emitting color of the corresponding light emitting unit. The optical filter can realize the application of the light induction technology under the screen, and is beneficial to improving the display effect of electronic equipment and a display module.

Description

Light filtering piece, display module and electronic equipment

Technical Field

The utility model relates to the technical field of electronics, in particular to a light filtering piece, a display module and electronic equipment.

Background

Electronic devices such as mobile phones and tablet computers have become essential scientific and technological products in the life, study and entertainment processes of people. At present, the electronic equipment that has used display module assembly can bring better display experience, receives consumer's favor more and more.

However, in the related art, a light blocking layer needs to be disposed on a part of the display module, which is not favorable for the application of the light sensing technology under the screen.

SUMMERY OF THE UTILITY MODEL

The utility model provides a light filtering piece, a display module and electronic equipment. The optical filter can realize the application of the light induction technology under the screen, and is beneficial to improving the display effect of electronic equipment and a display module.

The technical scheme is as follows:

according to a first aspect of embodiments of the present invention, there is provided a filter, including a light blocking layer and a filter layer; the light blocking layer is provided with a first light transmitting area which is arranged towards the photosensitive element, and the light transmittance of the first light transmitting area is reduced from the set position to other edge directions; and the filter layer is embedded in the light blocking layer and comprises a plurality of optical filters arranged on the light blocking layer at intervals, and the color of light rays allowed to penetrate through the optical filters is the same as the light emitting color of the corresponding light emitting unit.

The technical scheme provided by the embodiment of the utility model can have the following beneficial effects:

when this light filtering piece is applied to electronic equipment, because the colour that the light filter allowed to see through light is unanimous with the luminous colour of luminescence unit, make external environment light when getting into display module assembly inside, partial environment light is absorbed by the layer that is in the light, most light is filtered by the light filter to partial environment light, only the ambient light of the few remaining single colors can see through, partial environment light is acquireed by light sensing element and/or light response module through first printing opacity district, and then can realize the application of the photoinduction technique under the screen. Meanwhile, as the light transmittance of the first light-transmitting area is reduced from the set position to other edge directions, the reflectivity difference of the display module can be effectively reduced, so that the reflectivity of the area corresponding to the photosensitive element and/or the light sensing module is gradually kept equal to the reflectivity of the area not corresponding to the photosensitive element and/or the light sensing module; when the display module assembly is in the screen of going out or shows darker picture, photosensitive element and/or light response module to regional becoming unobvious, be favorable to improving display module assembly's display effect, do not influence photosensitive element and/or light response module again and acquire ambient light. When the display module displays, a small part of ambient light rays entering the display module lose part of light intensity when being reflected inside the display module, and when the light rays are emitted out through the light filtering piece layer again, the reflected light rays are absorbed again through the light blocking layer and filtered again through the light filter, so that the intensity of the emitted reflected light is further reduced, the contrast of the display module is ensured, a polaroid does not need to be arranged in the display module, and the light and thin development of the display module is facilitated.

The technical solution of the present invention is further explained below:

in one embodiment, the first light-transmitting area is provided with a plurality of light-transmitting parts arranged at intervals, and the light-transmitting parts are arranged towards the photosensitive element; wherein, along the setting position of the first light transmission area towards other edge directions, the area of at least part of the light transmission part is smaller and/or the density of at least part of the light transmission part is lower.

In one embodiment, the plurality of light transmission parts are uniformly arranged on the light blocking layer at intervals, and the area of at least part of the light transmission parts is smaller towards other edge directions along the set position of the first light transmission area.

In one embodiment, the light blocking layer comprises a middle area and at least one annular area arranged outside the middle area, the annular area surrounds the middle area, and the light transmission area of the middle area is larger than that of the annular area; the light transmission area of the middle area is the sum of the areas of all the light transmission parts arranged in the middle area, and the light transmission area of the annular area is the sum of the areas of all the light transmission parts arranged in the annular area.

In one embodiment, the number of the annular regions is at least two, and in two adjacent annular regions, the annular region far away from the middle region surrounds the annular region close to the middle region; the farther from the central region, the smaller the light-transmitting area of the annular region.

In one embodiment, the farther away from the central region, the greater the spacing between at least some adjacent light-transmitting portions.

In one embodiment, the light-transmitting portion includes at least one of a light-transmitting through hole and a light-transmitting body.

In one embodiment, the predetermined position is a middle portion of the first light-transmitting region, and the light transmittance of the first light-transmitting region decreases from the middle portion toward the edge.

In one embodiment, the light blocking layer has at least partially different transmittance in the material of the first light-transmitting region, so as to make the first light-transmitting region have a transmittance.

In one of the embodiments, the light-blocking layer includes a black matrix film and is integrated with the filter layer; and/or the filters comprise red filters, green filters and blue filters, and correspond to the light-emitting colors of the light-emitting units one by one.

According to a second aspect of an embodiment of the present invention, there is provided a display module, including a substrate, a display layer, a thin film encapsulation layer, and the optical filter in any of the above embodiments, wherein the display layer is disposed on the substrate, the display layer includes a plurality of light emitting units, the thin film encapsulation layer is disposed on a light emitting side of the display layer, the optical filter is disposed on the thin film encapsulation layer, and the optical filters correspond to the light emitting units one to one.

when the display module assembly is used, the color of light which is allowed to penetrate through by the optical filter is consistent with the color of light emitted by the light emitting unit, so that when external environment light enters the display module assembly, partial environment light is absorbed by the light blocking layer, most light is filtered by the optical filter, only the rest part of single-color environment light can penetrate, partial environment light is acquired by the photosensitive element and/or the light sensing module assembly through the first light transmitting area, and the application of the light sensing technology under the screen can be realized. Because the light transmittance of the first light-transmitting area is reduced from the set position to other edge directions, the difference of the reflectivity of the display module can be effectively reduced, so that the reflectivity of the area corresponding to the photosensitive element and/or the light sensing module is gradually kept equal to the reflectivity of the area not corresponding to the photosensitive element and/or the light sensing module; when the display module assembly is in the screen of going out or shows darker picture, photosensitive element and/or light response module to regional becoming unobvious, be favorable to improving display module assembly's display effect, do not influence photosensitive element and/or light response module again and acquire ambient light. When the display module displays, a small part of ambient light rays entering the display module lose part of light intensity when being reflected by the display layer and/or the thin film packaging layer, and when being emitted by the light filtering piece layer again, the reflected light rays are absorbed again by the light blocking layer and filtered again by the optical filter, so that the intensity of the emitted reflected light is further reduced, the contrast of the display module is ensured, a polarizer does not need to be arranged in the display module, and the display module is favorable for the development of light thinning.

The technical solution of the present invention is further explained below:

in one embodiment, the display module further includes a touch layer, and the touch layer and the filter are sequentially stacked on the thin film encapsulation layer.

In one embodiment, the display module further includes a photosensitive element for receiving light incident from the first light-transmitting area, and the photosensitive element is disposed between the light-blocking layer and the display layer.

According to a third aspect of the embodiments of the present invention, there is further provided an electronic apparatus, including a control module and the display module in the above embodiments, wherein the control module is electrically connected to the light emitting unit and the light sensitive element.

from the analysis, when the display module is applied to an electronic device, the application of the off-screen light sensing technology can be realized. Meanwhile, because the light transmittance of the first light-transmitting area is reduced from the set position to other edge directions, the difference of the reflectivity of the display module can be effectively reduced, so that the reflectivity of the area corresponding to the photosensitive element is gradually leveled with the reflectivity of the non-corresponding area; when the display module assembly is in the screen of going out or shows darker picture, photosensitive element becomes unobvious to the region, is favorable to improving display module assembly's display effect, does not influence photosensitive element again and acquires ambient light, is favorable to improving electronic equipment's display effect and self-adaptation display brightness control's reliability.

The technical solution of the present invention is further explained below:

in one embodiment, the electronic device further includes an optical sensor module, the display module has a second transparent region disposed opposite to the first transparent region, the optical sensor module is disposed under the display module, and the light sensor module receives light incident through the first transparent region and the second transparent region.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model, as claimed.

Drawings

Brief description of the drawingsthe accompanying drawings, which form a part hereof, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model, and together with the description, serve to explain the utility model and not to limit the utility model.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment.

Fig. 2 is a schematic cross-sectional view of the display module in the width direction of the electronic device shown in fig. 1.

Fig. 3 is a partial structural diagram of the optical filter shown in fig. 2.

Fig. 4 is a partial structural diagram of the optical filter shown in fig. 2.

Fig. 5 is a schematic cross-sectional view of an electronic apparatus in another embodiment in a width direction.

Fig. 6 is a schematic cross-sectional view of an electronic apparatus in another embodiment in a width direction.

Fig. 7 is a schematic diagram of an internal hardware structure of an electronic device in an embodiment.

Description of reference numerals:

100. a display module; 110. a light filtering member; 111. a light barrier layer; 101. a first light-transmitting region; 101a, a light-transmitting portion; 103. a middle region; 104. an annular region; 105. a black matrix film; 112. a filter layer; 102. an optical filter; 104a, a first inclined surface; 120. a substrate; 130. a display layer; 131. a light emitting unit; 140. a thin film encapsulation layer; 150. a photosensitive element; 160. a touch layer; 170. a light-transmitting adhesive; 180. a light-transmitting cover plate; 106. a second light-transmitting region; 200. a control module; 300. an optical sensing module; 10. an electronic device; 11. a processing component; 12. a memory; 13. a power supply component; 14. a multimedia component; 15. an audio component; 16. an input/output interface; 17. a sensor assembly; 18. a communication component.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

For convenience of understanding, technical terms related to the embodiments of the present disclosure are broadly explained and described below.

An OLED: an organic light-emitting semiconductor;

TFE: thin Film Encap, Thin Film encapsulation layer;

pol: polarizer, Polarizer;

pol-less: novel OLED display structures without polarizers;

CF: color Filter, Color Filter;

BM: black Material, Black opaque Material such as Black matrix film, etc.;

ALS: ambient Light Sensor, Ambient Light Sensor.

Electronic devices such as mobile phones and tablet computers have become essential scientific and technological products in the life, study and entertainment processes of people, and bring much convenience and fun to the life of people. With the development of the diversification of the functions of the electronic equipment, the electronic equipment has various types and brands, so that consumers can select a great number of electronic equipment, and the requirements of people on the electronic equipment cannot be met only by improving the functional characteristics of the electronic equipment. The display quality and the display appearance of the electronic device having the display function also become important factors affecting the competitiveness of the electronic product. Among electronic devices having similar functions or performances, the higher the display quality of the electronic devices is, the more beautiful the display appearance is, and the more attractive the display quality is to consumers for purchase.

In some application scenes, ambient brightness is collected through the photosensitive element, collected ambient brightness information is provided for the control module of the electronic equipment, and the control module adaptively adjusts the display brightness of the display module of the electronic equipment according to the ambient brightness so as to improve user experience.

However, in the related art, the hole needs to be dug in the light blocking layer of the display module when the photosensitive element is arranged, so that ambient light can enter the photoelectric sensor from the dug hole and be acquired by the photoelectric sensor, the reflectivity of the dug hole area can be obviously higher than that of the non-dug hole area, and when the screen is turned off or a dark picture is displayed, the dug hole area can become very obvious, which is not beneficial to improving the display effect of the display module.

Therefore, the present disclosure provides a light filter, which can reduce the reflectivity difference of a display module, and is beneficial to improving the display effect of an electronic device and the display module.

For a better understanding of the filter, the display module and the electronic device of the present disclosure, reference is made to the following description taken in conjunction with the accompanying drawings.

Fig. 1 to 5 are structural views of an electronic device and a display module thereof according to some embodiments. Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment. Fig. 2 is a schematic cross-sectional view of the display module in the width direction of the electronic device shown in fig. 1. Fig. 3 is a partial structural diagram of the optical filter shown in fig. 2. Fig. 4 is a partial structural diagram of the optical filter shown in fig. 2. Fig. 5 is a schematic diagram of an internal hardware structure of the electronic device shown in fig. 1.

As shown in fig. 1 and 2, in some embodiments of the present disclosure, an electronic apparatus 10 is provided, which includes a display module 100 and a control module 200, wherein the control module 200 is electrically connected to the display module 100.

The display module 100 includes a filter 110, a substrate 120, a display layer 130, a thin film encapsulation layer 140 and a photosensitive element 150, the display layer 130 is disposed on the substrate 120, the display layer 130 includes a plurality of light emitting units 131, the thin film encapsulation layer 140 is disposed on a light emitting side of the display layer 130, the photosensitive element 150 is disposed between the light blocking layer and the display layer 130, and the filter 110 is disposed on the thin film encapsulation layer 140.

The filter 110 includes a light blocking layer and a filter layer 112; the light blocking layer is provided with a first light transmitting area 101 which is arranged towards the photosensitive element 150, and the light transmittance of the first light transmitting area 101 is reduced towards other edge directions from the set position; the filter layer 112 is embedded in the light-blocking layer, the filter layer 112 includes a plurality of filters 102 disposed at intervals on the light-blocking layer, the color of light allowed to pass through by the filters 102 is the same as the light-emitting color of the corresponding light-emitting units 131, and the filters 102 correspond to the light-emitting units 131 one to one.

When the display module 100 is used, the photosensitive element 150 is disposed between the light filter 110 and the display layer 130, and is disposed opposite to the first light-transmitting region 101 of the light-blocking layer. Since the color of the light allowed to pass through by the optical filter 102 is the same as the color of the light emitted by the light emitting unit 131, when external ambient light enters the display module 100, a part of the ambient light is absorbed by the light blocking layer, a majority of the ambient light is filtered by the optical filter 102, only a remaining part of ambient light with a single color can pass through, and a part of the ambient light passes through the first light transmitting area 101 and is acquired by the photosensitive element 150, so that the application of the light sensing technology under the screen can be realized. Because the light transmittance of the first light-transmitting area 101 is reduced from the set position to other edge directions, that is, the farther away from the photosensitive element 150, the lower the light transmittance of the first light-transmitting area 101 is, the difference in the reflectivity of the display module 100 can be effectively reduced, so that the reflectivity of the area corresponding to the photosensitive element 150 is gradually leveled to the reflectivity of the non-corresponding area; when the display module 100 is in a state of turning off the screen or displaying a darker picture, the area opposite to the photosensitive element 150 becomes unobvious, which is beneficial to improving the display effect of the display module 100 and does not influence the photosensitive element 150 to obtain the ambient light. When the display module 100 displays, a small portion of ambient light entering the display module 100 loses a part of light intensity when being reflected by the display layer 130 and/or the thin film encapsulation layer 140, and when being emitted again by the light filtering member 110, the reflected light is absorbed again by the light blocking layer and filtered again by the optical filter 102, so that the intensity of the emitted and reflected light is further reduced, the contrast of the display module 100 is ensured, a polarizer does not need to be arranged in the display module 100, and the display module 100 is favorable for the development of thinning and lightening.

As can be seen from the above analysis, when the display module 100 is applied to the electronic device 10, the control module 200 is electrically connected to the light emitting unit 131 and the light sensitive element 150. Because the light transmittance of the first light-transmitting area 101 is reduced from the set position to other edge directions, that is, the farther away from the photosensitive element 150, the lower the light transmittance of the first light-transmitting area 101 is, the difference in the reflectivity of the display module 100 can be effectively reduced, so that the reflectivity of the area corresponding to the photosensitive element 150 is gradually leveled to the reflectivity of the non-corresponding area; when the display module 100 is in a state of turning off the screen or displaying a darker picture, the region to which the photosensitive element 150 is located becomes unobvious, which is beneficial to improving the display effect of the display module 100, does not influence the photosensitive element 150 to obtain the ambient light, and is beneficial to improving the display effect of the electronic device 10 and the reliability of the adaptive display brightness adjustment.

It can be understood that the application of the technology of the present disclosure increases the display aesthetic feeling of the electronic device 10, brings people a higher level of consumption experience, and makes consumers feel the mind of manufacturers, thereby improving the product competitiveness of the electronic device 10 of the present disclosure. If the electronic device 10 is a handheld device (e.g., a mobile phone or a tablet computer), the display module 100 has no display difference, and the whole display quality is better.

It should be noted that the "setting position" may be set according to the structure type of the optical sensing module and the light sensing requirement, and may be an edge of the first light-transmitting region, a position near the middle, or a middle, and so on.

In some embodiments, the predetermined position is a middle portion of the first light-transmitting region, and the light transmittance of the first light-transmitting region decreases from the middle portion toward the edge. So, make the luminousness change in first printing opacity district more even, the reflection of light difference is difficult for noticing more. In addition, the optical sensor is also suitable for the cylindrical optical sensing module.

The electronic device 10 may include a handheld device, a vehicle-mounted device, a wearable device, a monitoring device, a cellular phone (cellular phone), a smart phone (smart phone), a Personal Digital Assistant (PDA) computer, a tablet computer, a laptop computer, a video camera, a video recorder, a camera, a smart watch (smart watch), a smart bracelet (smart bracelet), a vehicle-mounted computer, and other electronic devices 10 having an imaging function.

The display layer 130 includes an organic light emitting semiconductor layer (OLED device layer).

The light sensor 150 includes, but is not limited to, any one of a photoresistor, a photodiode, a phototransistor, and a silicon photocell, and is used for converting an optical signal into an electrical signal.

As shown in FIG. 2, in some embodiments, when the number of the photosensitive elements 150 is plural, for example, when the number of the photosensitive elements 150 is n (n ≧ 2), the n photosensitive elements 150 are uniformly and dispersedly arranged in the display module 100. For example, the photosensitive elements 150 are uniformly and dispersedly arranged on the filter 110. By arranging the plurality of photosensitive elements 150 and uniformly and dispersedly arranging the plurality of photosensitive elements 150, it can be avoided that all the photosensitive elements 150 are completely shielded by fingers of a user or other objects due to the operation of the user on the panel of the display module 100, so that even if some photosensitive elements 150 are shielded, another part of the photosensitive elements 150 are not shielded, and the other part of the photosensitive elements 150 which are not shielded can still acquire accurate sensor data.

On the basis of any of the above embodiments, as shown in fig. 2, in some embodiments, the display module 100 further includes a touch layer 160, and the touch layer 160 and the optical filter 110 are sequentially stacked on the thin film encapsulation layer 140. Thus, the display module 100 has a touch function in addition to a display function, so that a user can perform a touch operation conveniently.

In order to further improve the display quality and reliability, the display module 100 may be further assembled to obtain better display effect and protection effect. As shown in fig. 2, in some embodiments, the display module 100 further includes a transparent adhesive 170 and a transparent cover plate 180, the transparent cover plate 180 is disposed above the filter 110, and the transparent adhesive 170 is disposed between the transparent cover plate 180 and the filter 110. Therefore, the transparent glue 170 and the transparent cover plate 180 are sequentially arranged on the light filtering member 110, and in the process, the transparent glue 170 is utilized for buffering, so that the transparent cover plate 180 cannot press down the light filtering member 110, and the yield and the reliability in the application process in the production process of the display module 100 are improved.

In addition, after the display module 100 is assembled, the adhesive layer is not in a pressed state, which can prevent the connection terminal 122 from being easily broken due to long-term pressure, and further improve the reliability of the display module 100 of the present disclosure.

Specific embodiments of the light-transmissive adhesive 170 include oca (optical Clear adhesive), and the like.

It should be noted that the light-transmitting cover 180 can be implemented in various ways, including a flexible light-transmitting plate.

In some embodiments, the display module 100 is a flexible display screen, and the transparent cover 180 is a flexible transparent plate. When the method is applied to the electronic equipment 10, better display experience can be obtained, and the screen occupation ratio is improved.

On the basis of any of the above embodiments, as shown in fig. 2 and fig. 3, in some embodiments, the first light-transmitting area 101 is provided with a plurality of light-transmitting portions 101a arranged at intervals; in the setting position of the first light transmitting region 101, the area of at least part of the light transmitting portion 101a is smaller and/or the density of at least part of the light transmitting portion 101a is lower toward the other edge. In this way, by providing the light transmitting portion 101a, the light transmittance of the first light transmitting region 101 can be adjusted by controlling the area of the light transmitting portion 101a or the density of the light transmitting portion 101a, so that the light transmittance of the first light transmitting region 101 is lower toward the other edge direction at the setting position of the first light transmitting region 101. Specifically, the farther away from the photosensitive element 150, the smaller the area of at least part of the light-transmitting portion 101a and/or the lower the density of at least part of the light-transmitting portion 101a is, so that the light transmittance of the first light-transmitting region 101 is lower, the reflectivity of the region corresponding to the photosensitive element 150 is gradually leveled to the reflectivity of the non-corresponding region, the display difference of the display module 100 is reduced, and the photosensitive element 150 can be ensured to obtain sufficient ambient light.

In addition, it can be understood that, while ensuring that the photosensitive element 150 can obtain enough ambient light, the traditional large hole area is dispersed on the plurality of light transmission portions 101a, so as to further reduce the difference between the reflectivity of the first light transmission region 101 and the reflectivity of the non-first light transmission region 101, and improve the display aesthetic property of the display module 100.

Alternatively, the shape of the "light-transmitting portion 101 a" may be various, including but not limited to a polygon, a circle, an ellipse, or an irregular figure (as shown in fig. 3), and the like. For example, the shapes of the plurality of light-transmitting portions arranged at intervals on the first light-transmitting region may be the same, for example, all of the light-transmitting portions are circular; but may also be different, such as the spacing being arranged in a circle, oval, etc.

In one possible example, the light blocking layer 111 may include a central region 103 and at least one annular region 104 disposed outside the central region 103, and the light-transmitting portion 101a disposed on the central region 103 and the light-transmitting portion 101a disposed on the at least one annular region 104 may have different shapes. For example, the shapes of the light-transmitting portions 101a provided on different annular regions 104 may be different.

On the basis of the above embodiments, in some embodiments, the light-transmitting portion 101a includes at least one of a light-transmitting through hole and a light-transmitting body. Thus, after the filter layer 112 and the light blocking layer are formed, a light-transmitting through hole is formed in the light blocking layer by drilling; it is also possible to mold the light transmitting body and the filter 102 integrally with the light blocking layer and then form the light transmitting portion 101a on the light blocking layer using the light transmitting body. Further, the transparent portion 101a can be flexibly designed to meet the requirements of different types of display modules 100.

As shown in fig. 2 and 3, in some embodiments, the filters 102 include a red filter 102, a green filter 102, and a blue filter 102, and correspond to the light emitting colors of the light emitting units 131 one to one. And thus the display effect of the light emitting unit 131 can be enhanced using ambient light. When the display module 100 displays, a small portion of ambient light entering the display module 100 is reflected by the display layer 130 and/or the thin film encapsulation layer 140, and is emitted again through the light filtering member 110 layer, and the light is overlapped with the light emitted by the light emitting unit 131, so that a gain effect can be achieved, and the display quality of the display module 100 is improved.

In addition to any of the above-mentioned embodiments of the light-transmitting portion 101a, as shown in fig. 2 and fig. 4, in some embodiments, a plurality of light-transmitting portions 101a are disposed at regular intervals on the light-blocking layer, and the area of at least a part of the light-transmitting portion 101a decreases toward the other edge of the first light-transmitting region 101. Therefore, the light transmission parts 101a are uniformly arranged, the arrangement is better performed in the manufacturing process, and the change of the light transmittance of the first light transmission area 101 is realized only by controlling the change of the area of the light transmission parts 101a, so that the light transmittance of the first light transmission area 101 is reduced from the set position to other edge directions. That is, the farther away from the photosensitive element 150, the smaller the area of at least a portion of the light-transmitting portion 101a, the worse the light transmittance of the first light-transmitting region 101 is, which is beneficial to reducing the manufacturing difficulty and the manufacturing cost.

On the basis of any of the above embodiments of the light-transmitting portion 101a, as shown in fig. 4, in some embodiments, the light-blocking layer includes a central region 103 and at least one annular region 104 disposed outside the central region 103, the annular region 104 is disposed around the central region 103, and the light-transmitting area of the central region 103 is larger than that of the annular region 104; here, the light transmission area of the central region 103 is the sum of the areas of all the light transmission portions 101a provided in the central region 103, and the light transmission area of the annular region 104 is the sum of the areas of all the light transmission portions 101a provided in the annular region 104. Thus, by providing the middle region 103 and the at least one annular region 104, the light transmittance can be more regularly controlled in the first light-transmitting region 101, and the arrangement of the density and/or the area of the light-transmitting portions 101a in different regions is also facilitated. Specifically, the light transmission area of the central region 103 is the sum of the areas of all the light transmission portions 101a provided in the central region 103, the light transmission area of the annular region 104 is the sum of the areas of all the light transmission portions 101a provided in the annular region 104, and the light transmission area of the central region 103 is larger than the light transmission area of the annular region 104. That is, the light transmittance of the first light-transmitting region 101 in the central region 103 is greater than that of the first light-transmitting region 101 in the annular region 104.

On the basis of the above embodiments, as shown in fig. 4, in some embodiments, there are at least two annular regions 104, and in two adjacent annular regions 104, the annular region 104 far from the central region 103 surrounds the annular region 104 near the central region 103; the farther from the central region 103, the smaller the light-transmitting area of the annular region 104. Thus, the annular region 104 is sequentially arranged in a surrounding manner along a direction away from the photosensitive element 150, and the smaller the light-transmitting area of the annular region 104 is. That is, the light transmittance of the annular region 104 is further reduced as the distance from the photosensitive element 150 is reduced, so that the light transmittance of the first light-transmitting region 101 is further reduced, the reflectivity of the first light-transmitting region 101 is gradually close to the reflectivity of the non-first light-transmitting region 101, and the display effect is improved.

In addition to any of the above embodiments of the light-transmitting portions 101a, in some embodiments, the farther from the central region 103, the larger the distance between at least two adjacent light-transmitting portions 101a is. In this way, the sizes of the light-transmitting portions 101a may be set to be the same, and the variation of the light transmittance of the first light-transmitting region 101 is achieved by controlling the variation of the density of the light-transmitting portions 101a such that the farther away from the photosensitive element 150, the greater the density of at least a portion of the light-transmitting portions 101a, the worse the light transmittance of the first light-transmitting region 101.

On the basis of any of the above embodiments, as shown in fig. 4, in some embodiments, the light blocking layer includes the black matrix film 105 and is integrated with the filter layer 112. In this way, the Black matrix film 105(BM, Black Material) can effectively prevent ambient light from entering the display layer 130, and thus the light emitting effect of the display layer 130 is affected.

In some embodiments, the light blocking layer has at least partially different transmittance in the material of the first light-transmitting region, so as to make the first light-transmitting region have a transmittance. Therefore, the light transmittance of the first light-transmitting area can be changed by changing the light transmittance of the light-blocking layer. For example, the light transmittance of the material corresponding to the light transmitting portion 101a is lower toward the other edge along the set position of the first light transmitting region 101.

For example, in conjunction with the above-described embodiments, the material in the central region has a greater light transmittance than the material in the annular region.

As shown in fig. 5, in any of the above embodiments of the display module 100, the display module 100 is provided with a second transparent region 106 opposite to the first transparent region 101. The electronic device further includes an optical sensing module 300, the optical sensing module 300 is disposed below the display module 100, and the light sensing module 300 receives light incident through the first light-transmitting area 101 and the second light-transmitting area 106. Thus, when the electronic device 10 is used, the control module 200 is electrically connected to the light sensing module 300 and the display module 100. Because the light transmittance of the first light-transmitting area 101 is reduced from the set position to other edge directions, that is, the farther away from the photosensitive element 150 and the light sensing module 300, the lower the light transmittance of the first light-transmitting area 101 is, the difference in reflectivity of the display module 100 can be effectively reduced, so that the reflectivity of the area to which the photosensitive element 150 and the light sensing module 300 are aligned is gradually equal to the reflectivity of the area to which the photosensitive element 150 and the light sensing module 300 are not aligned; when the display module 100 is in the state of extinguishing the screen or displaying a darker picture, the area of the photosensitive element 150 and the light sensing module 300 becomes unobvious, which is beneficial to improving the display effect of the display module 100, does not influence the photosensitive element 150 and the light sensing module 300 to acquire the ambient light, and is beneficial to improving the display effect of the electronic device 10 and the reliability of the self-adaptive display brightness adjustment.

It should be noted that the control module 200 may be electrically connected to the light sensing module 300 and the display module 100 through a control chip, or may be electrically connected to the light sensing module 300 through a control chip, and another control chip is electrically connected to the display module 100, which is not limited herein.

Alternatively, in some embodiments, a portion of the photosensitive element 150 may be made of a transparent material, and a portion of the substrate 120 and a portion of the display layer 130 are also made of a transparent material, so that the display module 100 is provided with a second transparent region disposed opposite to the first transparent region 101.

Referring to fig. 1, as shown in fig. 6, in another embodiment, an electronic apparatus 10 is further provided, which includes a display module 100, a control module 200 and an optical sensing module 300, wherein the control module 200 is electrically connected to the display module 100 and the optical sensing module 300.

The display module 100 includes a filter 110, a substrate 120, a display layer 130 and a film encapsulation layer 140, the display layer 130 is disposed on the substrate 120, the display layer 130 includes a plurality of light emitting units 131, the film encapsulation layer 140 is disposed on the light emitting side of the display layer 130, and the filter 110 is disposed on the film encapsulation layer 140. The filter 110 includes a light blocking layer and a filter layer 112; the light blocking layer is provided with a first light transmitting area 101 which is arranged towards the photosensitive element 150, and the light transmittance of the first light transmitting area 101 is reduced towards other edge directions from the set position; the filter layer 112 is embedded in the light-blocking layer, the filter layer 112 includes a plurality of filters 102 disposed at intervals on the light-blocking layer, the color of light allowed to pass through by the filters 102 is the same as the light-emitting color of the corresponding light-emitting units 131, and the filters 102 correspond to the light-emitting units 131 one to one.

The display module 100 has a second transparent area 106 opposite to the first transparent area 101, the optical sensing module 300 is disposed under the display module 100, and the light sensing module 300 receives light incident through the first transparent area 101 and the second transparent area 106.

When the display module 100 is used, the optical sensing module 300 is disposed under the display module 100. Since the color of the light allowed to pass through by the optical filter 102 is consistent with the color of the light emitted by the light emitting unit 131, when external ambient light enters the display module 100, a part of the ambient light is absorbed by the light blocking layer, a majority of the ambient light is filtered by the optical filter 102, only a remaining part of the ambient light with a single color can pass through, and a part of the ambient light passes through the first light-transmitting area 101 and is acquired by the optical sensing module 300. Because the light transmittance of the first light-transmitting area 101 is reduced from the set position to other edge directions, that is, the farther away from the light sensing module 300, the lower the light transmittance of the first light-transmitting area 101 is, the difference in reflectivity of the display module 100 can be effectively reduced, so that the reflectivity of the area to which the light sensing module 300 is facing is gradually leveled to the reflectivity of the non-facing area; when the display module 100 is in the state of extinguishing the screen or displaying a darker picture, the area to which the light sensing module 300 is located becomes unobvious, which is beneficial to improving the display effect of the display module 100 and does not influence the light sensing module 300 to obtain the ambient light. When the display module 100 displays, a small portion of ambient light entering the display module 100 loses a part of light intensity when being reflected by the display layer 130 and/or the thin film encapsulation layer 140, and when being emitted again by the light filtering member 110, the reflected light is absorbed again by the light blocking layer and filtered again by the optical filter 102, so that the intensity of the emitted and reflected light is further reduced, the contrast of the display module 100 is ensured, a polarizer does not need to be arranged in the display module 100, and the display module 100 is favorable for the development of thinning and lightening.

As can be seen from the above analysis, when the display module 100 is applied to the electronic device 10, the control module 200 is electrically connected to the light emitting unit 131 and the light sensing module 300. Because the light transmittance of the first light-transmitting area 101 is reduced from the set position to other edge directions, that is, the farther away from the light sensing module 300, the lower the light transmittance of the first light-transmitting area 101 is, the difference in reflectivity of the display module 100 can be effectively reduced, so that the reflectivity of the area to which the light sensing module 300 is facing is gradually leveled to the reflectivity of the non-facing area; when display module assembly 100 is in the screen of going out or shows darker picture, light response module assembly 300 becomes unobvious to the region, is favorable to improving display module assembly 100's display effect, does not influence light response module assembly 300 again and obtains ambient light, is favorable to improving electronic equipment 10's display effect and self-adaptation display brightness control's reliability.

The optical filter 110 in the present embodiment includes the optical filter 110 in any one of the foregoing electronic devices

It should be noted that the optical sensing module 300 in any of the above embodiments includes at least one of a camera module, an infrared sensing module, an optical fingerprint identification module, and the photosensitive element 150. In this way, the selection can be performed according to actual requirements to meet the design requirements of the electronic device 10 with different functions. If the camera module is disposed below the display module 100, a camera structure under the screen is formed. Or the optical fingerprint identification module is arranged below the display module 100 to form a fingerprint identification structure under the screen. Alternatively, in some embodiments, the optical sensor module 300 is the photosensitive element 150 and is disposed below the display module, and may not be integrated into the display module. Alternatively, in some embodiments, the optical sensing module 300 is a photosensitive element 150 and is disposed below the display module, and another photosensitive element 150 is integrated in the display module to achieve dual sensing of ambient light.

Referring to FIG. 7, in some embodiments, electronic device 10 may also include one or more of the following components: processing component 11, memory 12, power supply component 13, multimedia component 14, audio component 15, interface for input/output 16, sensor component 17, and communication component 18.

The processing component 11 generally controls overall operation of the electronic device 10, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 11 may include one or more processors to execute instructions to perform all or part of the steps of the above-described method. Further, the processing component 11 may include one or more modules that facilitate interaction between the processing component 11 and other components. For example, the processing component 11 may include a multimedia module to facilitate interaction between the multimedia component 14 and the processing component 11, such as a control panel.

The memory 12 is configured to store various types of data to support operations at the electronic device 10. Examples of such data include instructions for any application or method operating on the electronic device 10, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 12 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

The control module 200 includes a processing component 11 and a memory 12.

The power supply component 13 provides power to the various components of the electronic device 10. The power components 13 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the electronic device 10.

The multimedia component 14 includes the display module 100 of the present disclosure to facilitate human-computer interaction. If the display module 100 includes a touch panel, the display module 100 may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 14 includes a front facing camera and/or a rear facing camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the electronic device 10 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 15 is configured to output and/or input an audio signal. For example, the audio component 15 includes a Microphone (MIC) configured to receive external audio signals when the electronic device 10 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 12 or transmitted via the communication component 18. In some embodiments, audio assembly 15 also includes a speaker for outputting audio signals.

The input/output interface 16 provides an interface between the processing component 11 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 17 includes one or more sensors for providing various aspects of status assessment for the electronic device 10. For example, the sensor assembly 17 may detect an open/closed state of the electronic device 10, the relative positioning of components, such as a display and keypad of the electronic device 10, the sensor assembly 17 may also detect a change in the position of the electronic device 10 or a component of the electronic device 10, the presence or absence of user contact with the electronic device 10, orientation or acceleration/deceleration of the electronic device 10, and a change in the temperature of the electronic device 10. The sensor assembly 17 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 17 may also include a light sensitive element 150, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 17 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 18 is configured to facilitate wired or wireless communication between the electronic device 10 and other devices. The electronic device 10 may access a wireless network based on a communication standard, such as WiFi, 2G, 3G, 4G, or 6G, or the like, or a combination thereof. In an exemplary embodiment, the communication component 18 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 18 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered as limiting.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to," "disposed on," "secured to," or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, when one component is considered to be "fixedly connected" to another component, the two components may be fixed by way of detachable connection, or may be fixed by way of non-detachable connection, such as socket connection, snap connection, integrally formed fixation, welding, etc., which can be realized in the conventional art, and is not cumbersome.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, many variations and modifications can be made without departing from the inventive concept of the present invention, which falls within the scope of the present invention.

Claims

1. An optical filter, comprising:

the light blocking layer is provided with a first light transmitting area, and the light transmittance of the first light transmitting area is reduced from the set position of the first light transmitting area to other edge directions; and

the filter layer is embedded into the light blocking layer and comprises a plurality of optical filters arranged on the light blocking layer at intervals, and the color of light rays allowed to penetrate through the optical filters is the same as the light emitting color of the corresponding light emitting unit.

2. The filter of claim 1, wherein the first light-transmitting region is provided with a plurality of light-transmitting portions arranged at intervals; wherein, along the setting position of the first light transmission area towards other edge directions, the area of at least part of the light transmission part is smaller and/or the density of at least part of the light transmission part is lower.

3. The filter of claim 2, wherein the plurality of light-transmitting portions are disposed at regular intervals on the light-blocking layer, and the area of at least a portion of the light-transmitting portions decreases toward other edges along the set position of the first light-transmitting region.

4. The filter of claim 2, wherein the light-blocking layer comprises a central region and at least one annular region disposed outside the central region, the annular region being disposed around the central region, the central region having a light-transmitting area greater than that of the annular region;

the light transmission area of the middle area is the sum of the areas of all the light transmission parts arranged in the middle area, and the light transmission area of the annular area is the sum of the areas of all the light transmission parts arranged in the annular area.

5. The filter according to claim 4, wherein the number of the annular regions is at least two, and in two adjacent annular regions, the annular region farther from the central region surrounds the arrangement of the annular regions closer to the central region; the farther from the central region, the smaller the light-transmitting area of the annular region.

6. The filter of claim 4, wherein the farther away from the central region, the greater the spacing between at least some adjacent ones of the light-transmissive portions.

7. The filter of claim 2, wherein the light-transmissive portion comprises at least one of a light-transmissive through-hole and a light-transmissive body.

8. The filter of claim 1, wherein the setting position is a middle portion of the first light-transmitting region, and the light transmittance of the first light-transmitting region decreases from the middle portion toward the edge.

9. The filter of claim 1, wherein the light blocking layer has at least partially different light transmittance in the material of the first light-transmitting region, so as to make the light transmittance of the first light-transmitting region.

10. The filter according to any one of claims 1 to 9, wherein the light-blocking layer comprises a black matrix film and is formed integrally with the filter layer; and/or the filters comprise red filters, green filters and blue filters, and correspond to the light-emitting colors of the light-emitting units one by one.

11. A display module, characterized in that, includes base plate, display layer, thin film packaging layer and the light filter of any one of claims 1 to 10, the display layer set up in the base plate, the display layer includes a plurality of luminescence units, the thin film packaging layer set up in the light-emitting side of display layer, the light filter set up in the thin film packaging layer, just the light filter with the luminescence unit one-to-one.

12. The display module according to claim 11, further comprising a touch layer, wherein the touch layer and the filter are sequentially stacked on the thin film encapsulation layer.

13. The display module of claim 11, further comprising a photosensitive element for receiving light incident from the first transparent region, wherein the photosensitive element is disposed between the light blocking layer and the display layer.

14. An electronic device, comprising the display module according to any one of claims 11 to 13.

15. The electronic device of claim 14, further comprising an optical sensor module, wherein the display module has a second transparent region disposed opposite to the first transparent region, the optical sensor module is disposed under the display module, and the light sensor module receives light incident through the first transparent region and the second transparent region.