Display device, control method, and electronic device

Abstract

The application discloses a display device, a control method and an electronic device. The display device comprises a display panel, the display panel having a display area and an optical sensing area; an optical sensing component, and a projection of the optical sensing component on the display panel is located in the optical sensing area; and a light adjusting component, the light adjusting component being located between the optical sensing component and the display panel, and having an open state and a closed state. Thus, the display device can alleviate or even solve the problem that the display panel at the position of the optical sensing component has color difference between the display area and the optical sensing area when the display panel is in a black screen state and the optical sensing component is working, and the problem that the user can see the optical sensing area.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of display, in particular, to a display device, a control method and an electronic device. BACKGROUND

[0002] With the continuous maturity of under-screen sensing technology, products with under-screen optical sensors have also attracted widespread attention, such as under-screen fingerprint recognition, infrared sensing, and distance sensing. However, there is still a certain color difference between the normal display area and the camera area of the current under-screen optical sensing product, which leads to the actual camera area being observable by the user. Moreover, with the addition of more sensors under the screen, such as structured light, infrared sensors, distance sensors, etc., the camera area will continue to increase. The sensitivity of the human eye to color difference is proportional to the area, the larger the area, the more sensitive the human eye, and therefore when the area of the under-screen camera area increases, the color difference between the under-screen camera area and the display area will be more serious.

[0003] Therefore, the current display device, control method and electronic device still need to be improved. SUMMARY

[0004] The present application aims to alleviate or even solve at least one of the above problems to some extent.

[0005] In one aspect of the present application, a display device is provided. The display device comprises: a display panel, the display panel having a display area and an optical sensing area located in the display area, the display area having a plurality of first pixel structures, and the optical sensing area having a second pixel structure; an optical sensing component, the optical sensing component being disposed on a side of the display panel away from a light-emitting side, and a normal projection of the optical sensing component on the display panel being located in the optical sensing area; and a light adjustment component, the light adjustment component being located between the optical sensing component and the display panel, and the light adjustment component having an open state and a closed state. Thus, the display device can alleviate or even solve the problem that the display panel at the position of the optical sensing component has color difference between the display area and the optical sensing area when the screen is black and the optical sensing component is working, resulting in the optical sensing area being visible to the user.

[0006] According to an embodiment of the present application, the light adjustment component comprises first and second support layers arranged opposite to each other, and light adjustment particles located between the first and second support layers, the light adjustment particles being controllably deflectable in an electric field. Thus, controllable light adjustment can be achieved.

[0007] According to an embodiment of the present application, the light adjusting particles comprise liquid crystal particles or electronic ink capsules; the light adjusting assembly further comprises a first electrode and a second electrode for forming the electric field, the first electrode and the second electrode are located on the same support layer; or the first electrode and the second electrode are located on different support layers. In this way, the performance of the light adjusting assembly can be further improved.

[0008] According to an embodiment of the present application, at least one of the first electrode and the second electrode has a plurality of sub-electrodes configured to apply different voltages. In this way, the performance of the light adjusting assembly can be further improved.

[0009] According to an embodiment of the present application, the on state of the light adjusting assembly is configured to allow light to pass through the light adjusting assembly and enter the side of the optical sensing assembly or the side of the display panel, and the off state of the light adjusting assembly is configured to at least partially prevent the reflected light on the surface of the optical sensing assembly from passing through the light adjusting assembly and exiting to the side of the display panel. In this way, the performance of the light adjusting assembly can be further improved.

[0010] According to an embodiment of the present application, the light adjusting assembly further comprises at least one of the following structures: an anti-reflection and anti-glare layer located on the support layer on the side of the light adjusting assembly facing the display panel; a plurality of isolation columns located between the first and second support layers, and adjacent two of the isolation columns define a plurality of light adjusting particle accommodating spaces between the first and second support layers. In this way, the performance of the light adjusting assembly can be further improved.

[0011] According to an embodiment of the present application, the light adjusting assembly and the display panel are in an integrated structure, and the light adjusting particle accommodating spaces and the second pixel structure are correspondingly arranged. In this way, the overall thickness of the display device with the light adjusting assembly can be reduced.

[0012] According to an embodiment of the present application, the first pixel structure comprises a plurality of first organic light emitting diodes, and the anode of the first organic light emitting diode is formed of a conductive material with a reflecting function. In this way, the performance of the display device can be further improved.

[0013] According to an embodiment of the present application, the optical sensing assembly comprises at least one of a structured light assembly, an infrared distance measuring assembly, an infrared imaging assembly, and a photosensitive sensing assembly. In this way, the performance of the display device can be further improved.

[0014] In another aspect of the present application, the present application provides a method for controlling the display device as described above. The method comprises: in a first state, turning off the second pixel structure of the optical sensing area of the display panel and turning on the light adjusting component; and in a second state, turning on the second pixel structure of the optical sensing area of the display panel and turning off the light adjusting component. Thus, the color difference between the optical sensing area and the display area can be easily relieved.

[0015] According to the embodiments of the present application, in the first state, the light adjusting component is turned on to allow external light to pass through the light adjusting component to the side of the optical sensing component for first optical sensing, or to allow light emitted by the optical sensing component to pass through the light adjusting component to the side of the display panel for second optical sensing. Thus, the normal operation of the optical sensing component can not be affected.

[0016] According to the embodiments of the present application, the light adjusting component has liquid crystal particles, which are deflected in a direction perpendicular to the plane of the support layer of the light adjusting component in the first state; or the light adjusting component has electronic ink capsules, which form a light transmission path in a direction perpendicular to the plane of the support layer of the light adjusting component in the first state. Thus, light can pass through the light adjusting component easily.

[0017] According to the embodiments of the present application, in the second state, the light adjusting component is turned off to allow only light having a specified incident angle to pass through the light adjusting component. Thus, the color difference of the optical sensing area caused by reflected light can be relieved.

[0018] According to the embodiments of the present application, the light adjusting component has liquid crystal particles, which are in a disordered state or have a deflection angle other than 90 degrees in the second state; or the light adjusting component has electronic ink capsules, which form a light transmission path having an acute included angle with the plane of the support layer of the light adjusting component in the second state, or close the light transmission path formed by the electronic ink capsules. Thus, the reflected light can be easily reduced from entering the human eye.

[0019] In still another aspect of the present application, the present application provides an electronic device. The electronic device comprises the display device as described above, and a cover glass located on the light exit side of the display device. The electronic device has all the features and advantages of the display device as described above, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the following drawings, in which:

[0021] Figure 1 FIG. 1 shows a structural schematic diagram of a display device according to an embodiment of the present application;

[0022] Figure 2 FIG. 2 shows a structural schematic diagram of a display device in the related art;

[0023] Figure 3 FIG. 3 shows a structural schematic diagram of another display device in the related art;

[0024] Figure 4 FIG. 4 shows a structural schematic diagram of a light adjusting component according to an embodiment of the present application;

[0025] Figure 5 FIG. 5 shows a structural schematic diagram of a display device according to an embodiment of the present application;

[0026] Figure 6 FIG. 6 shows a structural schematic diagram of a display device according to another embodiment of the present application;

[0027] Figure 7 FIG. 7 shows a structural schematic diagram of a display device according to yet another embodiment of the present application;

[0028] Figure 8 FIG. 8 shows a structural schematic diagram of a light adjusting particle according to an embodiment of the present application;

[0029] Figure 9 FIG. 9 shows a structural schematic diagram of a display device according to an embodiment of the present application. DETAILED DESCRIPTION

[0030] Embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below are examples for explaining the present application and are not intended to limit the present application. The same or similar components are denoted by the same or similar reference numerals throughout the accompanying drawings.

[0031] In the description of the present application, the terms "upper", "lower", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present application and do not require the present application to be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application.

[0032] In one aspect of the present application, a display device is provided. Referring to Figure 1The display device comprises a display panel, an optical sensing assembly 200, and a light adjustment assembly 300. The display panel has a display area 110 and an optical sensing area 120 in the display area. The display area has a plurality of first pixel structures (not shown in the figure), and the optical sensing area 120 has a second pixel structure 121. The optical sensing assembly 200 is arranged on the side of the display panel away from the light-emitting side, and the orthographic projection of the optical sensing assembly 200 on the display panel is located in the optical sensing area 120. The light adjustment assembly 300 is located between the optical sensing assembly and the display panel, and the light adjustment assembly has an on state and an off state. Thus, the display device can alleviate or even solve the problem that the display panel at the position of the optical sensing assembly has color difference between the black screen and the working state of the optical sensing assembly, and the user can see the optical sensing area.

[0033] According to embodiments of the present application, the first and second pixel structures can comprise a plurality of light-emitting elements. Specifically, the first and second pixel structures of the display panel can each have a plurality of organic light-emitting diodes, the first pixel structure comprising a plurality of first organic light-emitting diodes, and the second pixel structure comprising a plurality of organic light-emitting diodes. Taking OLED as an example of the light-emitting element, according to some embodiments of the present application, the anode and cathode of the organic light-emitting diode of the second pixel structure are formed by transparent conductive material, so that the light required by the optical sensing assembly in the working state can pass through the display panel and be incident on the corresponding sensor.

[0034] Optionally, the first and second pixel structures of the display panel can be the same or different. For example, the pixel density of the second pixel structure is less than that of the first pixel structure.

[0035] As described above, the display device with an under-screen optical sensing function, such as an under-screen camera function, usually has the problem of color difference between the display screen at the position of the camera and the display screen at other positions. The inventors have found that this is mainly due to the difference between the organic light-emitting diode structure arranged at the optical sensing area and the display area, specifically, the anode and cathode are both formed by transparent conductive material (such as ITO), so that the position cannot prevent the reflected light below the OLED from being incident on the side of the user, thereby causing the existence of color difference. Specifically, referring to Figure 2 In the black screen state of the display device, specifically, in the bright external light environment, due to the above difference between the optical sensing area and the display area, the external light enters the side of the display panel along the camera area (as shown by the arrow in the figure), and is reflected at the surface of the optical sensing assembly, such as the lens group of the sensor, the protective glass, the housing of the assembly, etc. (as shown by the sensing assembly 210 in the figure), so that the user can see the under-screen aperture area, i.e., the brightness of the optical sensing area 120 is higher than that of the normal display area 110, resulting in the generation of color difference. When the screen is bright, referring to Figure 3That is, when the OLEDs of the display area 110 and the optical sensing area 120 are all working, the light emitted by the light-emitting layer of the light-emitting diode of the optical sensing area 120 has an uncontrollable direction, and part of the light enters the inside of the display device in the reverse direction (as shown by the dotted arrow in the figure), is reflected out as in the black screen state, so that the user sees a difference in brightness between the camera aperture area and the normal display area when using it, and due to the uncertainty of the direction of the reflected light, color mixing phenomenon will occur. And this phenomenon will be enhanced as the camera aperture area becomes larger. Although the color difference can be compensated by independent control of the under-screen camera area and increasing the brightness, the above strategy cannot fundamentally solve the problem, and different mirror group installation positions, angles, surface finish, etc. Differences will cause different degrees of color difference, making the single control and color difference compensation strategy more complex.

[0036] The display device provided by the present application is provided with a light adjustment component, and the light adjustment component has an open state and a closed state. In the open state, light passes through the light adjustment component and enters one side of the optical sensing component or one side of the display panel. The light includes external light that needs to enter the sensor, such as external light when taking a photo, infrared light received by an infrared sensor, and light that needs to be emitted from the sensor, such as structured light emitted by a face recognition (FaceID) sensor, and light emitted by a distance sensor. In the closed state, the light adjustment component is configured to at least partially prevent the reflected light on the surface of the optical sensing component from passing through the light adjustment component and being emitted to one side of the display panel. Thus, the display device can fundamentally reduce the transmission of the reflected light:

[0037] In the open state, the organic light-emitting diode of the optical sensing area does not work when the optical sensing component needs to work. At this time, the light adjustment component allows light to pass through the light adjustment component and enter the optical sensing component, so that the sensor receives external light and works as a camera, a photosensitive sensor, an infrared imaging sensor, or the like. Or the light can pass through the light adjustment component from the sensor side to the display panel side, so that the light of the optical sensor can be normally emitted to realize sensors such as structured light dot matrix and infrared ranging. In the closed state, the organic diode of the optical sensing area is lit for display to hide the under-screen camera. The light adjustment component is configured to at least partially prevent the reflected light on the surface of the optical sensing component from passing through the light adjustment component and being emitted to one side of the display panel. Thus, the display device can alleviate or even solve the problem that the display panel at the position of the optical sensing component has color difference between the black screen state and the working state of the optical sensing component, and the display area, causing the user to see the optical sensing area.

[0038] According to an embodiment of the present application, the optical sensing assembly 200 can include multiple optical sensing mechanisms. For example, a camera module capable of realizing a photo shooting function, an ambient light sensor for sensing ambient light to adjust brightness, an infrared sensor for face sensing (Face ID) and real person detection in a dark light state, and a structured light module for emitting a structured light dot array such as face three-dimensional reconstruction, a distance sensor for controlling screen brightness, and the like.

[0039] According to an embodiment of the present application, referring to Figure 4 , the light adjusting assembly includes oppositely arranged first and second support layers (i.e., the first support layer 310 and the second support layer 340 shown in the figure), and light adjusting particles 360 located between the first support layer and the second support layer, which can be controllably deflected in an electric field. Thus, controllable light adjustment can be realized. The first support layer 310 and the second support layer 340 can be made of high-performance PI, organic glass, quartz glass, or other materials with high transmittance, thereby protecting the light adjusting particles in the middle and improving the mechanical properties and stability of the light adjusting assembly.

[0040] According to an embodiment of the present application, the light adjusting assembly further includes a first electrode 320 and a second electrode 330 for forming the electric field, and the first electrode and the second electrode are respectively independently located on the first support layer or the second support layer. That is, the positions of the first and second electrodes can be arranged on the first or second support layer (this case is not shown in the figure), or the first and second electrodes can be arranged on different support layers, such as the first electrode being located on the first support layer and the second electrode being located on the second support layer as shown in the figure. According to an embodiment of the present application, as long as an electric field capable of controlling the deflection of the light adjusting particles can be formed, the first and second electrodes can be a planar electrode and a strip-shaped electrode, or both can be strip-shaped electrodes, as long as they can form an electric field capable of controlling the light adjusting particles to switch between the on state and the off state described above. For example, at least one of the first electrode and the second electrode can have multiple sub-electrodes configured to apply different voltages. For example, the multiple sub-electrodes can be connected to different signal paths (such as data lines), specifically, each sub-electrode can be connected to a data line, or multiple sub-electrodes can be connected to the same data line. The light adjusting assembly can be configured with a separate control module, and the above-mentioned signal paths (data lines) can be connected to the control module, and different voltages can be output to the multiple sub-electrodes through technologies including but not limited to a driving chip (IC), an FPGA (Field Programmable Gate Array), and the like. Thus, the independent control of the light adjusting particles in the corresponding area of each sub-electrode can be realized, and the control of the light path is more accurate. Thus, the performance of the light adjusting assembly can be further improved, and the on-off states of the light adjusting assembly in different areas can be controlled separately.

[0041] According to some embodiments of the present application, the first electrode and the second electrode are respectively independently formed by a material with high transmittance and low resistivity, such as metal oxide, ITO (indium tin oxide), zinc oxide, etc. The electrodes can be formed by processes including but not limited to spraying, vapor deposition, magnetron sputtering, etc. Through the upper and lower electrodes, a magnetic field or an electric field is formed to deflect the particles. As mentioned above, the specific shape of the first and second electrodes is not particularly limited, as long as an electric field for deflecting the particles can be formed. Specifically, at least one of the first and second electrodes can be a slit electrode, or a hollow electrode with a shape of comb, sawtooth, etc. According to some examples of the present application, a planar switching electric field (IPS) can be formed between the first and second electrodes, or an ultra-high dimensional switching electric field (ADS) can be formed. According to some examples of the present application, the first and second electrodes can be formed synchronously with the anode of the organic light-emitting diode, or a separate mask can be used to form the first and second electrodes to improve the production yield.

[0042] According to embodiments of the present application, the specific type of the particles is not particularly limited, as long as the on-off state can be achieved. For example, the particles can include liquid crystal particles or electronic ink capsules. In this way, the performance of the light modulation assembly can be further improved. For example, the liquid crystal particles can be deflected controllably under the control of an electric field to achieve the shielding or transmission of light; the electronic ink capsules can also achieve the above functions, for example, refer to Figure 8 The light modulation particles 360 formed by the electronic ink capsules can have two anti-glare particles 361 and 362 with different electric properties, and can be deflected controllably under an electric field, so as to form a light transmission path 363 as shown in Figure 8 , or to deflect the two anti-glare particles 361 and 362 to achieve the closing of the light transmission path (not shown in the figure).

[0043] According to embodiments of the present application, in order to further improve the performance of the light modulation assembly, refer to Figure 4The light control assembly can further include an anti-reflection layer 370, a control unit 380, and a spacer 350 between the first and second support layers. The anti-reflection layer 370 is located on the support layer on the side of the light control assembly facing the display panel, for example, on the side of the first support layer 310 away from the first electrode 320. The anti-reflection layer 370 can be made of fluorine-containing polymers, silicon dioxide, acrylate, or other organic or inorganic or nanomaterials, formed on the support layer by processes including but not limited to spraying, vapor deposition, magnetron sputtering, etc. The anti-reflection layer 370 can be a relatively dense film layer with the functions of reducing reflectivity, increasing transmittance, and increasing wear resistance. The control unit 380 can control the first and second electrodes, specifically by controlling the current or voltage, to generate different electric and magnetic fields under different currents or voltages, to achieve the steering of the light control particles and the switching between the on and off states according to the different needs of the optical sensing assembly. The spacer 350 can be arranged between the two support layers to ensure a fixed and stable cell gap between the two support layers to further protect the internal light control particles. According to some examples of the present application, the two adjacent spacers define a plurality of light control particle containing spaces between the first and second support layers. As previously described, at least one of the first and second electrodes can have a plurality of sub-electrodes, and each sub-electrode can be applied with a different voltage or current to achieve zoned control of the light control particles in the light control assembly. The light control particle containing spaces defined by the two adjacent spacers can correspond to the aforementioned zones, i.e., one light control particle containing space can have one sub-electrode.

[0044] According to an embodiment of the present application, the first pixel structure in the display area 110 can include a plurality of first organic light emitting diodes, and the first organic light emitting diodes and the organic light emitting diodes of the optical sensing area can have different structures. Specifically, the anode of the first organic light emitting diode can be formed of a conductive material with a reflective function, for example, silver or the like. The organic light emitting diodes of the optical sensing area cannot use materials with low transmittance to form electrodes in order to enable the optical sensing assembly to work, and thus can use transparent conductive materials including but not limited to ITO to form the cathode and anode. In addition, since the area of the optical sensing area is relatively small compared to the display area, the size of the organic light emitting diodes of the optical sensing area can also be small, thereby ensuring that the optical sensing area has a certain number of pixel structures, which can further improve the resolution of the optical sensing area and make the display area and the optical sensing area as consistent as possible when displaying.

[0045] According to embodiments of the present application, the light modulation assembly can be a separate structure or integrated with the display panel. Specifically, the light modulation assembly can have a separate support layer, which is fixed in the aforementioned position after the display panel is prepared, by means including but not limited to optical adhesive bonding, etc. Alternatively, the light modulation assembly can be integrated into the display panel, and at least share a support layer with the display panel: for example, the substrate surface in contact with the display panel and the light modulation assembly can be reused as a support layer of the light modulation assembly. According to some specific examples of the present application, the light modulation particle containing space defined by the adjacent isolation columns can be arranged corresponding to the second pixel structure of the display panel, i.e. the orthographic projection of the second pixel structure on the display panel can correspond to the orthographic projection of the light modulation particle containing space on the display panel. For example, the second pixel structure of the optical sensing area can have multiple second sub-pixels, each corresponding to an organic light-emitting diode of a certain color, for example, can have red, green, and blue second sub-pixels, and the areas of second sub-pixels of different colors can be different. At this time, the positions of the isolation columns can be designed according to the specific structure of the second pixel structure to form light modulation particle containing spaces of different areas. Alternatively, according to another example of the present application, taking the optical sensing area as a circular shape as an example, along the direction from the display area to the center of the optical sensing area, the arrangement of the second pixel structure can gradually become denser from sparse, i.e. the number of second pixel structures per unit area can change from small to large, and the light modulation particle containing space defined by the isolation columns can also have the above changes. Thus, the number of isolation columns in the peripheral region of the optical sensing area is small, which can allow more light to pass through, and the second pixel structure in the central region is arranged more densely, which can better display the picture, thereby further improving the effect of the display device in hiding the optical sensor.

[0046] According to embodiments of the present application, the specific structure of the optical sensing assembly is not particularly limited, and for example, can include at least one of a structured light assembly, an infrared distance measuring assembly, an infrared imaging assembly, and a photosensitive sensing assembly. Thus, the performance of the display device can be further improved.

[0047] For the convenience of understanding, the principle of the light modulation assembly in the on state and the off state to reduce the color difference between the optical sensing area and the display area is briefly described as follows:

[0048] As described above, the light modulation assembly has light modulation particles, and when the light modulation particles (or the anti-glare particles therein) are turned, they have different light guiding properties in different directions. Taking liquid crystal particles as light modulation particles as an example, referring to Figure 5When the optical sensor needs to emit light, the first organic light emitting diode of the display area 110 displays normally, the organic light emitting diode of the optical sensing area is turned off, the light emitted by the optical sensor can be normally emitted through the light adjusting assembly by controlling the movement of the light adjusting particles to a specified angle, and the light emitted by the optical sensor is suitable for emitting signals of a structured light dot array sensor, an infrared distance measuring sensor, etc. For example, the liquid crystal molecules at this time can be arranged in a direction perpendicular to the support layer. Similarly, when the optical sensor needs to receive light, the first organic light emitting diode of the display area 110 displays normally, the organic light emitting diode of the optical sensing area is turned off, and the light adjusting particles can maintain the aforementioned angle, so that external light can smoothly pass through the light adjusting assembly and enter the optical sensor, and the light adjusting assembly is suitable for working of a camera, a photosensitive sensor, an infrared imaging sensor, etc. When the optical sensor does not work, the light emitting diodes of the optical sensing area and the display area display normally, and at this time, the deflection direction of the light adjusting particles can be controlled, for example, referring to the above-mentioned first aspect of the present application. Figure 6 The light adjusting particles can be in a chaotic state, so that only part of the light can be incident on the side of the optical sensor, and after reflection, the part of the light cannot pass through the light adjusting assembly, that is, the light is transmitted by the light adjusting particles in a chaotic manner, so that the total amount of reflected light is reduced, and the chromatic aberration is weakened; or, referring to Figure 7 The light adjusting particles can be in a specific angle, so that only part of the light with a specific angle can pass through the light adjusting assembly and be incident on the side of the optical sensor, so that the total amount of light reflected on the surface of the sensing assembly 210 can be reduced. In the black screen mode, that is, the light emitting diodes of the display area and the optical sensing area do not work, and the optical sensor also does not work, the state of the light adjusting assembly can be the same as when the light emitting diodes of the optical sensing area and the display area display normally and the optical sensor does not work, and the principle is similar to the above-mentioned principle. Thus, the adjustment of the chromatic aberration can be simply realized, and the structure can be suitable for various optical sensing assemblies without the need to change according to the type of the sensing assembly, and can be suitable for a display device with a relatively large optical sensing area.

[0049] In another aspect of the present application, a method for controlling the display device described in the foregoing is provided. The method can include the following steps: in a first state, turning off the second pixel structure of the optical sensing area of the display panel and allowing the light adjusting assembly to be in an open state; and in a second state, turning on the second pixel structure of the optical sensing area of the display panel and allowing the light adjusting assembly to be in a closed state. Thus, the chromatic aberration problem between the optical sensing area and the display area can be simply alleviated.

[0050] Specifically, taking the organic light emitting diode as an example, in the first state, the organic light emitting diode of the optical sensing area is turned off, the first organic light emitting diode of the display area is turned on for display, and the light adjusting assembly is in an open state by means of a control assembly, so that external light passes through the light adjusting assembly and enters the side of the optical sensing assembly for first optical sensing, or light emitted by the optical sensing assembly passes through the light adjusting assembly and enters the side of the display panel for second optical sensing. Thus, the normal operation of the optical sensing assembly is not affected. The first optical sensing can be sensing work of a camera, a photosensitive sensor, an infrared imaging sensor, etc., at this time, the light adjusting particles in the light adjusting assembly can be arranged at a specific angle, such as perpendicular to the support layer of the light adjusting assembly, so that external light can smoothly pass through the light adjusting assembly and enter the optical sensor. The first optical sensing can be signal sensing of a structured light dot array, an infrared distance sensor, etc., and the light adjusting particles in the light adjusting assembly can also be arranged at an angle for the first optical sensing, so that the light emitted by the optical sensor can normally pass through the light adjusting assembly. For example, the light adjusting assembly has liquid crystal particles, which are deflected in a direction perpendicular to the plane of the support layer of the light adjusting assembly in the first state; or the light adjusting assembly has electronic ink capsules, which form a light transmission path in a direction perpendicular to the plane of the support layer of the light adjusting assembly in the first state. Thus, light can pass through the light adjusting assembly conveniently.

[0051] According to the embodiment of the present application, in the second state, the organic light emitting diode of the optical sensing area is turned on, the first organic light emitting diode of the display area is also turned on for display, and the light adjusting assembly is in a closed state by means of a control assembly, so that only light with a specified incident angle passes through the light adjusting assembly. Thus, the color difference of the optical sensing area caused by reflected light can be reduced. According to the embodiment of the present application, the light adjusting assembly has liquid crystal particles, which are in a disordered state or have a deflection angle of less than 90 degrees in the second state. It should be particularly noted that the deflection angle of less than 90 degrees specifically refers to that the liquid crystal particles are arranged in a direction other than perpendicular to the plane of the support layer; or the light adjusting assembly has electronic ink capsules, which form a light transmission path with an acute included angle with the plane of the support layer of the light adjusting assembly in the second state, or the light transmission path formed by the electronic ink capsules is closed. Thus, the reflected light on the side of the optical sensor can be conveniently reduced from entering the human eye. The principle of reducing the reflected light by the light adjusting particles in the above deflection direction or angle has been described in detail above and will not be repeated here.

[0052] According to embodiments of the present application, the specific manner of realizing the first and second states described above is not particularly limited, for example, the first and second electrodes in the light control assembly can be controlled by a control unit or the like, and the controllable deflection of the light control particles can be realized by means of current or voltage. Specifically, the power supply mode of the electrodes can be controlled by the control unit, for example, the electrodes can include single-point, block and whole power supply, single-point means that at least one of the first and second electrodes has a plurality of sub-electrodes, each sub-electrode is an independent unit and can be independently controlled, and each sub-electrode can correspond to a light control assembly in a sub-structure separated by an isolation column. Block means that the above-mentioned plurality of sub-electrodes are divided into a plurality of small block areas, and each small block area is independently controlled; whole means that the first or second electrode is controlled as a whole, so that the light control particles in the light control assembly are deflected as a whole.

[0053] In yet another aspect of the present application, an electronic device is provided. Referring to Figure 9 , the electronic device includes the display device described above (such as the display panel 100, the light control assembly 300 and the optical sensing assembly 200 shown in the figure), and structures such as the cover glass 500, which is located on the light output side of the display device. In addition, the electronic device can also have structures such as the polaroid module 400, which can be located between the display panel 100 and the cover glass 500. The electronic device has all the features and advantages of the display device described above, and will not be described here.

[0054] In the description of the present specification, the description referring to the terms "one embodiment", "another embodiment" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment are included in at least one embodiment of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction. In addition, it should be noted that in the present specification, the terms "first", "second" are for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0055] Although embodiments of the present application have been shown and described above, it will be understood that the above-described embodiments are exemplary and cannot be construed as limiting the present application, and those of ordinary skill in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A display device, characterized by comprising: The display panel has a display area and an optical sensing area in the display area, the display area has a plurality of first pixel structures, and the optical sensing area has second pixel structures; The second pixel structures have a plurality of second sub-pixels An optical sensing assembly is arranged on a side of the display panel away from a light-emitting side, and a normal projection of the optical sensing assembly on the display panel is located in the optical sensing area; and A light-adjusting assembly is located between the optical sensing assembly and the display panel, and the light-adjusting assembly has an open state and a closed state; The light-adjusting assembly includes oppositely arranged first and second support layers and light-adjusting particles located between the first and second support layers, the light-adjusting particles being controllably deflectable in an electric field; The light-adjusting assembly further includes at least one of the following structures: An anti-reflection and anti-glare layer is located on a support layer of the light-adjusting assembly facing the display panel; A plurality of isolation columns are located between the first and second support layers, and adjacent two isolation columns define a plurality of light-adjusting particle accommodating spaces between the first and second support layers; The light-adjusting assembly further includes a first electrode and a second electrode for forming the electric field; At least one of the first electrode and the second electrode has a plurality of sub-electrodes configured to apply different voltages; One light-adjusting particle accommodating space corresponds to one sub-electrode. The light-adjusting particles include liquid crystal particles or electronic ink capsules; The first electrode and the second electrode are located on the same support layer; 2. The display device according to claim 1, wherein Or, the first electrode and the second electrode are located on different support layers. The open state of the light-adjusting assembly is configured to allow light to pass through the light-adjusting assembly and enter a side of the optical sensing assembly or a side of the display panel, and the closed state of the light-adjusting assembly is configured to at least partially prevent reflected light on the surface of the optical sensing assembly from passing through the light-adjusting assembly and exiting to the side of the display panel. The light-adjusting assembly and the display panel are integrated, and the light-adjusting particle accommodating spaces and the second pixel structures are correspondingly arranged.

3. The display device according to claim 1, wherein The first pixel structures include a plurality of first organic light-emitting diodes, and an anode of each first organic light-emitting diode is formed of a conductive material having a reflection function.

4. The display device according to claim 1, wherein The optical sensing assembly includes at least one of a structured light assembly, an infrared distance measuring assembly, an infrared imaging assembly, and a photosensitive sensing assembly.

5. The display device according to claim 1, wherein In a first state, the second pixel structures of the optical sensing area of the display panel are turned off, and the light-adjusting assembly is in the open state; 6. The display device according to claim 1, wherein In a second state, the second pixel structures of the optical sensing area of the display panel are turned on, and the light-adjusting assembly is in the closed state.

7. A method of controlling the display device according to any one of claims 1 to 6, characterized by, In the first state, the light-adjusting assembly is in the open state to allow external light to pass through the light-adjusting assembly and enter a side of the optical sensing assembly for first optical sensing, or to allow light emitted by the optical sensing assembly to pass through the light-adjusting assembly and enter a side of the display panel for second optical sensing. ​ ​ 8. The method of claim 7, wherein, ​ 9. The method of claim 8, wherein, The light-adjusting component has liquid crystal particles, which are deflected in a direction perpendicular to the plane of the support layer of the light-adjusting component in the first state; or The light-adjusting component has electronic ink capsules, which form a light transmission path in a direction perpendicular to the plane of the support layer of the light-adjusting component in the first state.

10. The method of claim 7, wherein, In the second state, the light-adjusting component is in an off state, so that only the part with a specified incident angle of the light on one side of the optical sensing component passes through the light-adjusting component and is emitted.

11. The method of claim 10, wherein, The light-adjusting component has liquid crystal particles, which are in a disordered state or have a deflection angle of less than 90 degrees in the second state; or The light-adjusting component has electronic ink capsules, which form a light transmission path with an acute included angle with the plane of the support layer of the light-adjusting component in the second state, or close the light transmission path formed by the electronic ink capsules.

12. An electronic device, comprising: The display device comprises: The display device according to any one of claims 1-6; Cover glass, which is located on the light-emitting side of the display device.

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