CN113808478A

CN113808478A - Screen assembly, control method and control device thereof and electronic equipment

Info

Publication number: CN113808478A
Application number: CN202010553821.3A
Authority: CN
Inventors: 许哲睿; 林信伯
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-12-17

Abstract

The disclosure relates to a screen assembly, a control method and a control device thereof and electronic equipment. The backlight module for the screen component is provided with the light emitting main body and the light path adjusting structure, and the light path adjusting structure comprises at least two light guide states, so that the light emitted through the light path adjusting structure can form different light emitting angles with the light receiving surface of the display module, and the display module forms a corresponding visual angle according to the light emitting angle of the light emitted. Therefore, the structure only adjusts the light-emitting angle of the light emitted from the backlight module, so that the visual angle of the screen assembly can be adjusted, and the screen assembly can also adjust the visual angle under different use scenes; above-mentioned structure setting has still avoided the structural change to display module assembly, helps promoting screen assembly's performance.

Description

Screen assembly, control method and control device thereof and electronic equipment

Technical Field

The present disclosure relates to the field of electronic technologies, and in particular, to a screen assembly, a control method thereof, a control device thereof, and an electronic device.

Background

During use, an electronic device such as a mobile phone not only relates to application of a screen in privacy operations such as network consumption and account transaction, but also relates to application of sharing a screen display with others. In the process of privacy operation, a user needs to input privacy information such as personal information and passwords on a screen of the electronic device, so that the visual angle of the screen needs to be limited to prevent other people from seeing the privacy information in other angles. The limitation on the visual angle of the screen limits the display angle of the screen picture, and the picture is not easy to be shared with other people at the same time. Therefore, how to consider the visual angle and the usability of the screen under different conditions becomes a hot research problem in the current field.

Disclosure of Invention

The disclosure provides a screen assembly, a control method and a control device thereof and electronic equipment, so as to take the visual angle and the use performance of a screen under different conditions into consideration.

According to a first aspect of the present disclosure, a screen assembly is provided, which includes a display module and a backlight module;

the backlight module comprises a light emitting main body and a light path adjusting structure, wherein the light path adjusting structure is assembled in the light emitting main body and comprises at least two light guide states; under different light guiding states, different light emitting angles are formed between the light rays emitted by the light path adjusting structure and the light emitting surface of the backlight module;

the light receiving surface of the display module is matched with the light emitting surface, and the display module forms a corresponding visual angle according to the light emitting angle of the emitted light.

Optionally, the optical path adjusting structure includes a liquid crystal film layer, the screen module further includes a first control circuit, the first control circuit is electrically connected to the liquid crystal film layer, and a liquid crystal in the liquid crystal film layer rotates to a preset spatial posture according to a preset voltage provided by the first control circuit, so that the liquid crystal film layer is switched to a corresponding light guiding state.

Optionally, the liquid crystal film layer includes a first light guiding state and a second light guiding state;

when the liquid crystal film layer is in a first light guiding state, the light emergent angle is a first angle, and a visual angle corresponding to the first angle is used for realizing privacy operation aiming at the screen;

when the liquid crystal film layer is in a second light guiding state, the light emitting angle is a second angle, and the visual angle corresponding to the second angle is used for realizing picture sharing aiming at the screen.

Optionally, the liquid crystal film layer includes a plurality of continuous light guiding states, and the light guiding states are continuously and dynamically adjusted according to the continuously changing preset voltage value.

Optionally, the liquid crystal film layer is arranged on the top side of the light emergent main body, and the light emergent surface is located on the side, facing the display module, of the liquid crystal film layer.

Optionally, the light path adjusting structure includes at least two light guide layers; the screen component also comprises second control circuits and backlight light sources which are in one-to-one correspondence with the light guide layers, and the second control circuits are respectively and electrically connected with the backlight light sources; the backlight light of at least one backlight light source passes through the corresponding light guide layer or the combination of the light guide layers, so that the light path adjusting structure is switched to the corresponding light guide state.

Optionally, the light path adjusting structure includes an upper light guide layer and a lower light guide layer, which are stacked, the backlight source includes an upper backlight source and a lower backlight source, the upper backlight source is disposed on one side of the upper light guide layer, and the lower backlight source is disposed on one side of the lower light guide layer.

Optionally, the backlight light sources are correspondingly arranged on the side surfaces of the light guide layer.

Optionally, the light guide directions of any two light guide layers are different.

Optionally, at least two of the light guide layers are stacked.

Optionally, the light-emitting main body further includes a light-condensing layer, and the light-condensing layer is disposed above the light-guiding layer; and the light-gathering microstructure in the light-gathering layer forms a preset light-gathering range.

Optionally, the light-emitting main body further includes a reflective layer disposed at the bottom of the light-emitting main body.

According to a second aspect of the present disclosure, there is provided a screen component control method, which is applied to the screen component, the method including:

receiving a control instruction aiming at the backlight module;

switching the light guide state of the light path adjusting structure according to the control instruction so that the light rays emitted by the light path adjusting structure form a corresponding light emitting angle with the light ray receiving surface of the display module; the display module can form a corresponding visual angle according to the light emitting angle of the emitted light.

Optionally, the light path adjusting structure includes a liquid crystal film layer, and the screen module further includes a first control circuit electrically connected to the liquid crystal film layer; switching the light guiding state of the light path adjusting structure according to the control instruction comprises:

adjusting the voltage acting on the liquid crystal film layer through the first control circuit according to the control instruction so as to enable the liquid crystal in the liquid crystal film layer to rotate to a preset space posture; and the light guide state of the liquid crystal film layer is matched with the preset space posture of the liquid crystal body.

Optionally, the light path adjusting structure includes at least two light guide layers; the screen component also comprises second control circuits and backlight light sources which are in one-to-one correspondence with the light guide layers, and the second control circuits are respectively and electrically connected with the backlight light sources; switching the light guiding state of the light path adjusting structure according to the control instruction comprises:

controlling the brightness of the backlight light source through the second control circuit according to the control instruction so that the backlight light of at least one backlight light source passes through the corresponding light guide layer or the combination of the light guide layers; the light guide state of the light path adjusting structure is matched with the backlight light brightness of the backlight light source and/or the light guide property of the light guide layer through which the backlight light of the backlight light source passes.

According to a third aspect of the present disclosure, there is provided a screen assembly control apparatus applied to the screen assembly, the apparatus including:

the receiving unit is used for receiving a control instruction aiming at the backlight module;

the control unit is used for switching the light guide state of the light path adjusting structure according to the control instruction so as to enable the emergent light rays passing through the light path adjusting structure and the light ray receiving surface of the display module to form a corresponding light emergent angle; the display module can form a corresponding visual angle according to the light emitting angle of the emitted light.

Optionally, the light path adjusting structure includes a liquid crystal film layer, and the screen module further includes a first control circuit electrically connected to the liquid crystal film layer; the control unit includes:

the first control subunit adjusts the voltage acting on the liquid crystal film layer through the first control circuit according to the control instruction so as to enable the liquid crystal in the liquid crystal film layer to rotate to a preset spatial posture; and the light guide state of the liquid crystal film layer is matched with the preset space posture of the liquid crystal body.

Optionally, the light path adjusting structure includes at least two light guide layers; the screen component also comprises second control circuits and backlight light sources which are in one-to-one correspondence with the light guide layers, and the second control circuits are respectively and electrically connected with the backlight light sources; the control unit includes:

the second control subunit controls the brightness of the backlight light source through the second control circuit according to the control instruction, so that backlight light of at least one backlight light source passes through the corresponding light guide layer or the combination of the light guide layers; the light guide state of the light path adjusting structure is matched with the backlight light brightness of the backlight light source and/or the light guide property of the light guide layer through which the backlight light of the backlight light source passes.

According to a fourth aspect of the present disclosure, an electronic device is provided, the electronic device comprising:

an apparatus main body;

the screen assembly is assembled on the equipment main body;

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

receiving a control instruction aiming at the backlight module;

According to a fifth aspect of the present disclosure, there is provided a computer readable storage medium having stored thereon computer instructions which, when executed by a processor, implement: the screen assembly controls the steps of the method.

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

this is disclosed sets up light-emitting main part and light path adjustment structure through the backlight unit for screen pack to make light path adjustment structure contain two kind at least leaded light states, make through light path adjustment structure jet-out light can form different light-emitting angle with display module's light receiving face, display module forms corresponding visual angle according to the light-emitting angle who jets out light. Therefore, the structure only adjusts the light-emitting angle of the light emitted from the backlight module, so that the visual angle of the screen assembly can be adjusted, and the screen assembly can also adjust the visual angle under different use scenes; above-mentioned structure setting has still avoided the structural change to display module assembly, helps promoting screen assembly's performance.

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 disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is an exploded view of a screen assembly in an exemplary embodiment of the present disclosure;

FIG. 2 is an exploded view of a screen assembly in another exemplary embodiment of the present disclosure;

FIG. 3 is a schematic cross-sectional structure diagram of a screen assembly in an application scenario according to an exemplary embodiment of the present disclosure;

FIG. 4 is a schematic cross-sectional structure diagram of a screen assembly in another application scenario in an exemplary embodiment of the present disclosure;

FIG. 5 is a schematic cross-sectional structure diagram of a screen assembly in an exemplary embodiment of the present disclosure in a further application scenario;

FIG. 6 is a schematic cross-sectional view of a screen assembly in an exemplary embodiment of the present disclosure in another application scenario;

FIG. 7 is a schematic cross-sectional view of a screen assembly in an exemplary embodiment of the present disclosure in another application scenario;

FIG. 8 is a flow chart of a screen assembly control method in an exemplary embodiment of the present disclosure;

fig. 9 is a block diagram of a structure of a screen assembly control apparatus in an exemplary embodiment of the present disclosure;

fig. 10 is a block diagram illustrating an apparatus for screen assembly control according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

During use, an electronic device such as a mobile phone not only relates to application of a screen in privacy operations such as network consumption and account transaction, but also relates to application of sharing a screen display with others. In the process of privacy operation, a user needs to input privacy information such as personal information and passwords on a screen of the electronic device, so that the visual angle of the screen needs to be limited to prevent other people from seeing the privacy information in other angles. The limitation on the visual angle of the screen limits the display angle of the screen picture, and the picture is not easy to be shared with other people at the same time.

Therefore, in the related art, the screen cannot meet the requirements of privacy operation and a visual angle during picture sharing, and the user experience is reduced.

FIG. 1 is a schematic diagram of a screen assembly in an exemplary embodiment of the present disclosure; fig. 2 is a schematic structural diagram of a screen assembly in another exemplary embodiment of the present disclosure. As shown in fig. 1 and 2, the screen assembly 1 includes a display module 12 and a backlight module 11. The backlight module 11 includes a light emitting body 111 and a light path adjusting structure 112, the light path adjusting structure 112 is assembled to the light emitting body 111, and the light path adjusting structure 112 includes at least two light guiding states. Under different light guiding states, the light emitted from the light path adjusting structure 112 and the light emitting surface 116 of the backlight module 11 form different light emitting angles α. The light receiving surface 121 of the display module 12 is engaged with the light emitting surface 116, and the display module 12 forms a corresponding viewing angle β according to the light emitting angle α of the emitted light.

In some embodiments, the light exit angle α refers to an angle between the light emitted from the backlight module 11 and a normal of the light exit surface 116, and the light exit angle α at a certain position of the light exit surface 116 is exemplarily marked in the present disclosure to represent the light exit angle α of the backlight module 11. The viewing angle β refers to an angle between the light emitted from the display module 12 and a normal of the display surface 122, and the viewing angle at a certain position of the display surface 122 is exemplarily marked in the present disclosure to represent the viewing angle β of the display module 12.

By providing the light emitting main body 111 and the light path adjusting structure 112 for the backlight module 11 of the screen assembly 1, and enabling the light path adjusting structure 112 to include at least two light guiding states, the light emitted through the light path adjusting structure 112 and the light receiving surface 121 of the display module 12 can form different light emitting angles α, and the display module 12 forms a corresponding visible angle β according to the light emitting angle α of the light emitted. Therefore, the above-mentioned structure only adjusts the light-emitting angle α of the light emitted from the backlight module 11, so as to realize the adjustment of the viewing angle β of the screen assembly 1, and the screen assembly 1 can also take into account the adjustment of the viewing angle β in different usage scenarios; the structural arrangement also avoids structural change of the display module 12, and is beneficial to improving the service performance of the screen assembly 1.

In some embodiments, the light path adjusting structure 112 may be disposed outside the light emitting body 111, and in other embodiments, the light path adjusting structure 112 may also be disposed inside the light emitting body 111, which is not limited by the present disclosure. The following embodiments are exemplarily described below with respect to the light path adjusting structure 112 disposed inside and outside the light emitting body 111, respectively:

1. the light path adjusting structure 112 is assembled outside the light emitting body 111

As shown in fig. 3, the optical path adjusting structure 112 may be a liquid crystal film layer 1121. The screen assembly 1 further includes a first control circuit 13, the first control circuit 13 is electrically connected to the liquid crystal film layer 1121, and the liquid crystal 1121a in the liquid crystal film layer 1121 rotates to a predetermined spatial posture according to a predetermined voltage provided by the first control circuit 13, so that the liquid crystal film layer 1121 is switched to a corresponding light guiding state.

Since the liquid crystal film layer 1121 includes a certain number of liquid crystals 1121a arranged in an array, the spatial orientation of the liquid crystals 1121a can change with the change of the voltage difference applied to the liquid crystal film layer 1121, and the change of the spatial orientation of the liquid crystals 1121a causes the propagation path of light in the liquid crystal film layer 1121 to change accordingly, which results in the change of light guiding parameters such as the refractive index, the complex refractive index, and the degree of scattering of the whole liquid crystal film layer 1121. The light guide parameter is associated with the light guide state of the liquid crystal film layer 1121, so that the corresponding relationship between the voltage and the light guide state can be obtained through the series of association relationships, thereby realizing switching of the light guide state of the liquid crystal film layer 1121 by adjusting the voltage, and facilitating adjustment and control of the visual angle.

The following describes the light-emitting angle of the liquid crystal film layer 1121 with reference to the relationship between the refractive index and the voltage in the light guiding parameters as an example: the refractive index of the liquid crystal film layer 1121 increases with the increase of the voltage, so that the light-emitting angle of the liquid crystal film layer 1121 also increases; the refractive index of the liquid crystal film layer 1121 decreases with the decrease of the voltage, so that the light-emitting angle of the liquid crystal film layer 1121 also decreases.

In an embodiment, two or more switchable light guiding states may be set for the liquid crystal film layer 1121, each light guiding state corresponds to one light emitting angle, and each light emitting angle corresponds to one voltage value. For example, as shown in fig. 3, when the voltage value is a first value, the liquid crystal film layer 1121 is in a first light guiding state, the light emitting angle is correspondingly a first angle R1, and a viewing angle corresponding to the first angle R1 can be used to implement a privacy operation for a screen; for example, as shown in fig. 4, when the voltage value is increased from the first value to the second value, the liquid crystal film layer 1121 is in the second light guiding state, the light emitting angle is correspondingly enlarged from the first angle R1 to the second angle R2, and the viewing angle corresponding to the second angle R2 can be used to implement picture sharing for the screen.

When a user sends out a privacy control instruction or the screen assembly 1 detects the privacy control instruction for the backlight module 11, the first control circuit 13 adjusts the voltage applied to the liquid crystal film layer 1121 to a first value, so that the display module 12 obtains a visible angle corresponding to the first angle R1; when a user sends or the screen assembly 1 detects a picture sharing control command for the backlight module 11, the first control circuit 13 adjusts the voltage applied to the liquid crystal film layer 1121 to a second value, so that the display module 12 obtains a visible angle corresponding to the second angle R2.

In another embodiment, the user can also directly control the voltage applied to the liquid crystal film layer 1121 to continuously change, and the light-emitting angle of the liquid crystal film layer 1121 changes in real time, so that the user can intuitively sense the visual angle of the screen assembly 1 during the process of changing the voltage and select an appropriate light-emitting angle. The process of the light guide state is continuous dynamic adjustment based on the voltage value, the flexibility and the richness of the change of the visual angle are increased, and the visual ranges of various changes such as the privacy operation visual angle, the picture visual angle shared by two persons, the picture visual angle shared by the two persons and the picture visual angle shared by the screen assembly in different directions are realized.

For example, a touch area or a touch graphic for adjusting voltage may be set on the display area of the screen assembly 1, a user may slide a finger on the touch area or the touch graphic to send a control command for continuously changing voltage to the electronic device, the electronic device may control the continuous change of voltage according to the control command, and the user may intuitively feel the visual angle of the screen assembly 1 during the process of changing voltage and select an appropriate light-emitting angle.

Or, a touch area or a touch graphic for adjusting voltage is set on the display area of the screen assembly 1, a control instruction for continuously changing voltage can be sent to the electronic device by sliding a finger of a user on the touch area or the touch graphic, the electronic device controls the continuous change of voltage according to the control instruction, and the light-emitting angle corresponding to the current touch position and the application scene corresponding to the light-emitting angle of the user are intelligently prompted in the sliding process of the finger of the user on the touch area or the touch graphic, so that the user can select whether to stay at the current light-emitting angle. Among them, the application scene may include a privacy operation scene, a sharing screen scene, and the like for the screen component 1.

Or, the electronic device may intelligently control the voltage to change continuously according to the application scene of the electronic device and/or the software turned on, and intelligently select the light-emitting angle matched with the current application scene and/or the software turned on. For example, when a user uses a video playing function of the electronic device, the electronic device intelligently selects a matched light-emitting angle according to the opening of video playing software, so that the light-emitting angle corresponds to the shared picture viewing angle.

In the above embodiment, the voltage applied to the liquid crystal film layer 1121 may be in a range of less than 150V, and when the voltage is varied in an interval of 0 to 150V, a light-emitting angle of 15 to 70 ° may be obtained.

In the above embodiment, the liquid crystal film layer 1121 includes Polymer Dispersed Liquid Crystal (PDLC) dispersed in a droplet form of a micron order in an organic solid polymer matrix, and since the optical axis of the droplet composed of liquid crystal molecules is in a free orientation, the optical axis orientation of the liquid crystal droplet can be adjusted by applying an electric field, thereby changing light guide parameters such as the refractive index, complex refractive index, and degree of scattering of the liquid crystal film layer 1121; after the electric field is removed, the liquid crystal microdroplet restores the original astigmatic state, and the light guide parameters such as refractive index, complex refractive index and scattering degree also restore to the original state.

In the above embodiment, the light-emitting main body 111 may include the backlight light source 14, and optical path adjusting film layers such as the reflective layer 113, the light guide structure 115, and the light-condensing layer 114 that are matched with the backlight light source 14, so that the light emitted from the light-emitting main body 111 meets the predetermined requirement on other light attributes except for the direction, such as brightness and softness. The backlight source 14 of the light-emitting body 111 and the functional films are stacked and assembled to form a whole, a side of the light-emitting body 111 facing the display module 12 is a top, the liquid crystal film layer 1121 may be disposed on a side of the top of the light-emitting body 111, and the light-emitting surface 116 is located on a side of the liquid crystal film layer 1121 facing the display module 12. Then, the propagation direction of the outgoing light is changed through the liquid crystal film layer 1121 disposed on the outer surface of the light outgoing body 111, so that the outgoing light passing through the liquid crystal film layer 1121 and the light outgoing angle of the light receiving surface 121 of the display module 12 also meet the preset requirement. The liquid crystal film layer 1121 is directly arranged on the top side surface of the light-emitting main body 111, so that the change of the original structure arrangement of the light-emitting main body 111 is avoided, the structure improvement cost is reduced, and the realization is easy.

Further, one side of the light-emitting main body 111, which faces away from the display module 12, is a bottom, and the reflective layer 113 may be disposed at the bottom of the light-emitting main body 111, so as to reflect the backlight light of the backlight light source 14 to the light path adjusting film layers such as the light guide structure 115 and the light-gathering layer 114, thereby preventing the backlight light from leaking from the bottom. The light-gathering layer 114 can be arranged at the top of the light-emitting main body 111, and the light guide structure 115 can be arranged between the light-gathering layer 114 and the reflecting layer 113, so that backlight light is conducted to the light-gathering layer 114 through the light guide structure 115, and gathering of the emitted light is achieved. In an embodiment, the light guide structure 115 may be a light guide plate, a light guide film, and the like, which is not limited in the disclosure. For example, as shown in fig. 2, the backlight source 14 is disposed at the right side of the light guide structure 115 to avoid the influence of the backlight source 14 on the thickness of the light-emitting body 111, which is helpful for improving the light weight and the thinness of the backlight module 11 and the screen assembly 1.

2. The light path adjusting structure 112 is assembled inside the light emitting body 111

As shown in fig. 5, the light path adjusting structure 112 includes two light guide layers: an upper light guiding layer 1122 near the light emitting surface and a lower light guiding layer 1123 far from the light emitting surface. The screen assembly 1 further comprises a second control line 15 and a backlight source 14, the backlight source 14 comprising: an upper backlight source 141 disposed on the side of the upper light guide layer 1122, and a lower backlight source 142 disposed on the side of the lower light guide layer 1123. The second control line 15 is electrically connected to the upper backlight source 141 and the lower backlight source 142, respectively.

When the second control circuit 15 only controls the upper backlight source 141 to be turned on, the backlight light of the upper backlight source 141 only passes through the upper light guide layer 1122 and then exits the light emitting body 111, forming a third light guide state. When the second control circuit 15 controls the lower backlight source 142 to be turned on, the backlight light of the lower backlight source 142 passes through the lower light guide layer 1123 and the upper light guide layer 1122 and then exits the light emitting body 111, forming a fourth light guiding state. For example, in the third light guiding state, the display module 12 of the screen assembly 1 can obtain the visible angle of the corresponding shared picture; in the fourth light guiding state, the display module 12 of the screen assembly 1 can obtain the corresponding viewing angle of the privacy operation. That is, the light guiding state switching of the light path adjusting structure 112 is realized by the light guiding layer participating in light guiding, so that the cost of the light path adjusting structure 112 is reduced, and the light guiding state switching is realized based on the mechanical combination of the light guiding layer, thereby improving the working stability and accuracy of the light path adjusting structure 112.

In one embodiment, the refractive index of the upper light guiding layer 1122 can be in the range of 1.5-1.6, and the refractive index of the lower light guiding layer 1123 can be in the range of 1.5-1.6. Since the refractive index is positively correlated with the light exit angle of the light guide layer, the refractive index of the upper light guide layer 1122 should be smaller than the refractive index of the lower light guide layer 1123, so that the upper light guide layer 1122 obtains a light exit angle smaller than the lower light guide layer 1123. The light-emitting angle formed by the upper light-guiding layer 1122 may be 0-20 °, and the light-emitting angle formed by the lower light-guiding layer 1123 may be 0-60 °. That is, the upper light guiding layer 1122 forms a narrow viewing angle when in use, and the lower light guiding layer 1123 forms a wide viewing angle when in use, so as to avoid the interference of the lower light guiding layer 1123 with the narrow viewing angle with the light exiting angle of the upper light guiding layer 1122.

As shown in fig. 5, when the second control circuit 15 controls the upper layer backlight source 141 to be turned on, the backlight light of the upper layer backlight source 141 is emitted through the upper layer light guide layer 1122, the light emitting angle of the backlight module forms a third angle R3 of 0-20 °, and the screen assembly obtains a corresponding narrow viewing angle display state. As shown in fig. 6, when the second control circuit 15 controls the lower backlight source 142 to be turned on, the backlight light of the lower backlight source 142 is emitted through the lower light guide layer 1123 and the last light guide layer, the light emitting angle of the backlight module forms a fourth angle R4 of 0-60 °, and the screen assembly 1 obtains a corresponding wide viewing angle display state.

As shown in fig. 7, when the second control circuit 15 controls the upper backlight light source 141 and the lower backlight light source 142 to be turned on simultaneously, the light ray adjusting structure 112 obtains a fifth light guiding state. At this time, the backlight light of the upper backlight source 141 passes through the upper light guiding layer 1122 and then exits the light emitting body 111, and the exiting light and the light emitting surface 116 form a fifth angle R5 as shown by the dotted arrow in fig. 7; the backlight light of the lower backlight source 142 passes through the upper light guide layer 1122 and the lower light guide layer 1123 and then exits the light main body 111, a sixth angle R6 shown by a solid arrow in fig. 7 is formed between the exiting light and the light exiting surface 116, and the light exiting angle of the final light adjusting structure is the larger sixth angle R6 of the fifth angle R5 and the sixth angle R6.

Due to the influence of the backlight brightness, a weak difference exists between the fifth light guiding state obtained by the light adjusting structure after the upper backlight light source 141 and the lower backlight light source 142 are turned on simultaneously and the third light guiding state or the fourth light guiding state. Therefore, in other embodiments, the brightness of the two upper layer backlight light sources 141 and/or the lower layer backlight light sources 142 may be further adjusted to obtain other light guiding states with weakly changing light-emitting angles.

It should be noted that the material of the upper light guide layer 1122 and the lower light guide layer 1123 may be PC (Polycarbonate), and the thicknesses of the upper light guide layer 1122 and the lower light guide layer 1123 may be smaller than 1mm, so as to reduce the influence of the light guide layers on the thicknesses of the backlight module 11 and the screen assembly 1. In an embodiment, the upper light guiding layer 1122 may be a light guiding structure such as a light guiding plate or a light guiding film, which is not limited in this disclosure; the upper light guiding layer 1123 may be a light guiding structure such as a light guiding plate or a light guiding film, which is not limited by the disclosure.

In another embodiment, the light path adjusting structure 112 includes a plurality of light guiding layers. The screen assembly 1 further includes a second control circuit 15 and backlight light sources 14 corresponding to the plurality of light guide layers one to one, and the second control circuit 15 is electrically connected to the backlight light sources 14 respectively. The backlight light of at least one backlight light source 14 passes through the corresponding light guide layer or the combination of light guide layers, so that the light path adjusting structure 112 is switched to the corresponding light guide state.

In some embodiments, when the optical path adjusting structure 112 includes a plurality of light guide layers, the light guide directions of any two light guide layers are different, and the light guide direction of the light guide layer is determined by the refractive index of the light guide layer and the properties of the internal micro light guide structure, i.e., the light guide directions of the light guide layers of different internal micro light guide structures are different, and the light guide direction of the light guide layer can be changed by changing the refractive index and the internal micro light guide structure. The light guide layers in different light guide directions increase the variability of light outlet angles of the light guide layers in the combined use process. In other embodiments, when the light path adjusting structure 112 includes a plurality of light guide layers, at least two light guide layers are stacked to facilitate the combined use of the light guide layers.

It should be noted that the material of the light guide layer may be PC (Polycarbonate), and the thickness of the light guide layer may be smaller than 1mm, so as to reduce the influence of the light guide layer on the thickness of the backlight module and the screen assembly.

In addition, the Display module 12 may be an LCD (Liquid Crystal Display) or an OLED (organic light-Emitting Diode) screen, which is not limited in this disclosure.

In the above embodiment, the light-emitting body 111 may further include a light-condensing layer 114 and a reflection layer 113, the reflection layer 113 is disposed at the bottom of the light-emitting body 111 facing away from the display module 12, and the light-condensing layer 114 is disposed above the light-guiding layer. The reflecting layer 113 is used for reflecting the backlight light of the backlight light source to the light guide layer, so that the problem of light leakage at the bottom of the light outgoing main body 111 is avoided; the light-gathering layer 114 contains light-gathering microstructures, which can gather light rays so that the emitted light rays are always uniform in direction. In order to avoid the influence of the light condensing layer 114 on the light guiding state of the light guiding layer, the light condensing microstructures may be adjusted or replaced to make the light condensing layer 114 obtain a predetermined light condensing range. For example, taking the light-emitting angle range of the wide-viewing angle light guide layer as 0-60 °, the light-condensing range of the light-condensing layer 114 should be greater than 60 ° in order to achieve the predetermined light-emitting angle and the predetermined viewing angle.

The light guide layer can be arranged between the reflecting layer 113 and the light condensing layer 114 of the light emitting main body 111, and the backlight source is arranged on the side face of the light guide layer so as to reduce the occupation of the backlight source on the thickness of the light emitting main body 111 and optimize the assembling space inside the light emitting main body 111.

The present disclosure further provides a screen component control method, to which the screen component control method is applied, and fig. 8 is a flowchart of a screen component control method in an exemplary embodiment of the present disclosure. As shown in fig. 8, the above method can be implemented by the following steps:

in step S801, a control instruction for the backlight module is received.

In step S802, the light guiding state of the light path adjusting structure is switched according to the control instruction, so that the light emitted through the light path adjusting structure and the light receiving surface of the display module form a corresponding light emitting angle; wherein, the display module assembly can form corresponding visual angle according to the light-emitting angle who jets out light.

Because the light path adjustment structure contains two kinds at least leaded light states for through the light path adjustment structure the light that jets out can form different light-emitting angle with the light receiving face of display module, the display module forms corresponding visual angle according to the light-emitting angle of the light that jets out. Therefore, the method realizes the visual angle adjustment of the screen assembly only by adjusting the light-emitting angle of the light emitted from the backlight module, so that the screen assembly can take the visual angle adjustment under different use scenes into consideration, the structural change of the display module is avoided, and the use performance of the screen assembly is improved.

In the above embodiment, the light guiding state of the optical path adjusting structure is switched according to the control instruction, so that the emitted light passing through the optical path adjusting structure and the light receiving surface of the display module form a corresponding light emitting angle, which can be implemented by the following embodiments:

in an embodiment, the light path adjusting structure includes a liquid crystal film layer, and the screen module further includes a first control circuit electrically connected to the liquid crystal film layer. The light guiding state of the light path adjusting structure is switched according to the control instruction, and the voltage acting on the liquid crystal film layer can be adjusted through the first control circuit according to the control instruction, so that the liquid crystal in the liquid crystal film layer is rotated to a preset spatial posture. The light guiding state of the liquid crystal film layer is matched with the preset space posture of the liquid crystal body.

Because the liquid crystal film layer comprises a certain number of liquid crystals arranged in an array mode, the liquid crystals can change in spatial posture along with the change of voltage difference applied to the liquid crystal film layer, and the change of the spatial posture of the liquid crystals enables the propagation path of light in the liquid crystal film layer to change correspondingly, so that the change of light guide parameters such as the integral refractive index, the complex refractive index and the scattering degree of the liquid crystal film layer is caused.

And the light guide parameter is associated with the light guide state of the liquid crystal film layer, so that the corresponding relation between the voltage and the light guide state can be obtained through the series of association relations, the light guide state of the liquid crystal film layer is switched by adjusting the voltage, and the visual angle adjustment and control are facilitated. In addition, the process of the light guide state can be based on continuous dynamic adjustment of voltage values, the flexibility and the richness of visual angle change are further increased, and the visual ranges of various changes such as privacy operation visual angles, picture visual angles shared by two persons, picture visual angles shared by screen components in different directions and the like are achieved.

The following description will be made of the light exit angle of the liquid crystal film layer by taking the relationship between the refractive index and the voltage in the light guiding parameter as an example: the refractive index of the liquid crystal film layer is increased along with the rise of the voltage, so that the light-emitting angle of the liquid crystal film layer is increased; the refractive index of the liquid crystal film layer is reduced along with the reduction of the voltage, so that the light-emitting angle of the liquid crystal film layer is reduced.

In an embodiment, two or more switchable light guiding states may be set for the liquid crystal film layer, each light guiding state corresponds to one light emitting angle, and each light emitting angle corresponds to one voltage value. When the voltage value is a first numerical value, the liquid crystal film layer is in a first light guiding state, the light emitting angle is a first angle correspondingly, and the visual angle corresponding to the first angle can be used for realizing privacy operation aiming at the screen; when the voltage value is increased to a second value from a first value, the liquid crystal film layer is in a second light guiding state, the light emitting angle is correspondingly enlarged to a second angle from the first angle, and the visual angle corresponding to the second angle can be used for realizing picture sharing for the screen.

When a user sends out or the screen assembly detects a privacy control instruction aiming at the backlight module, the first control circuit adjusts the voltage acting on the liquid crystal film layer to a first value so as to enable the display module to obtain a visual angle corresponding to a first angle; when a user sends out or the screen assembly detects a picture sharing control instruction aiming at the backlight module, the first control circuit adjusts the voltage acting on the liquid crystal film layer to a second value so that the display module obtains a visual angle corresponding to a second angle.

In another embodiment, the user can also directly control the voltage applied to the liquid crystal film layer to change continuously, the light-emitting angle of the liquid crystal film layer changes in real time, and the user can intuitively feel the visual angle of the screen assembly in the process of changing the voltage and select a proper light-emitting angle. The process of the light guide state is continuous dynamic adjustment based on the voltage value, the flexibility and the richness of the change of the visual angle are increased, and the visual ranges of various changes such as the privacy operation visual angle, the picture visual angle shared by two persons, the picture visual angle shared by the two persons and the picture visual angle shared by the screen assembly in different directions are realized.

In the above embodiments, the voltage applied to the liquid crystal film layer may range less than 150V, and when the voltage is varied in the interval of 0-150V, a light-emitting angle of 15 ° -70 ° may be obtained.

In the above embodiments, the liquid crystal film layer includes Polymer Dispersed Liquid Crystal (PDLC) dispersed in a form of micro-droplets in an organic solid polymer matrix, and since the optical axes of the micro-droplets formed by liquid crystal molecules are in free alignment, an electric field is applied to adjust the optical axis alignment of the liquid crystal droplets, thereby changing the light guide parameters such as refractive index, complex refractive index, and scattering degree of the liquid crystal film layer; after the electric field is removed, the liquid crystal microdroplet restores the original astigmatic state, and the light guide parameters such as refractive index, complex refractive index and scattering degree also restore to the original state.

In another embodiment, the light path adjusting structure includes at least two light guide layers, the screen assembly further includes a second control circuit and backlight light sources corresponding to the light guide layers one by one, and the second control circuit is electrically connected to the backlight light sources respectively. And switching the light guide state of the light path adjusting structure according to the control instruction, wherein the light guide state can be obtained by controlling the brightness of the backlight light source through a second control circuit according to the control instruction, so that the backlight light of at least one backlight light source passes through the corresponding light guide layer or the light guide layer combination. The light guide state of the light path adjusting structure is matched with the backlight light brightness of the backlight light source and/or the light guide property of the light guide layer through which the backlight light of the backlight light source passes.

The light guide state switching of the light path adjusting structure is realized through the brightness of the backlight light and the light guide layer participating in light guide, the cost of the light path adjusting structure is reduced, and the light guide state switching is realized based on the mechanical combination of the light guide layer and the brightness adjustment of the backlight light, so that the working stability and the accuracy of the light path adjusting structure are improved.

In one embodiment, the light path adjusting structure includes two light guide layers: the upper light guide layer is close to the light-emitting surface and the lower light guide layer is far away from the light-emitting surface. The screen assembly further includes a second control line and a backlight source, the backlight source including: the upper light source in a poor light that corresponds with upper light guide layer to and the lower floor light source in a poor light that corresponds with lower floor light guide layer. The second control circuit is electrically connected with the upper layer backlight source and the lower layer backlight source respectively.

When the second control circuit only controls the upper layer backlight light source to be started, the backlight light of the upper layer backlight light source only penetrates through the upper layer light guide layer and then is emitted out of the light emitting main body, and a third light guide state is formed. When the second control circuit controls the lower backlight source to be started, the backlight light of the lower backlight source passes through the lower light guide layer and the upper light guide layer and then is emitted out of the light emitting main body, and a fourth light guide state is formed. Under the third light guide state, the display module of the screen assembly can obtain the visual angle of the corresponding shared picture; under above-mentioned fourth leaded light state, the display module assembly of screen pack can obtain the visual angle of corresponding privacy operation. That is, the light guide state switching of the light path adjusting structure is realized by the light guide layer participating in light guide, the cost of the light path adjusting structure is reduced, and the light guide state switching is realized based on the mechanical combination of the light guide layer, so that the working stability and the accuracy of the light path adjusting structure are improved.

In one embodiment, the refractive index of the upper light guiding layer may range from 1.5 to 1.6, and the refractive index of the lower light guiding layer may range from 1.5 to 1.6. Because the refractive index is positively correlated with the light-emitting angle of the light guide layer, the refractive index of the upper light guide layer should be smaller than that of the lower light guide layer, so that the upper light guide layer obtains the light-emitting angle smaller than that of the lower light guide layer. The light-emitting angle formed by the upper light guide layer can be 0-20 degrees, and the light-emitting angle formed by the lower light guide layer can be 0-60 degrees. Namely, the upper light guide layer forms a narrow viewing angle when in use, and the lower light guide layer forms a wide viewing angle when in use, so that the interference of the light-emitting angle of the lower light guide layer at the wide viewing angle to the upper light guide layer at the narrow viewing angle is avoided.

When the second control circuit controls the upper layer backlight source to be started, the backlight light of the upper layer backlight source is emitted through the upper layer light guide layer, the light emitting angle of the backlight module forms a third angle R3 of 0-20 degrees, and the screen assembly obtains a corresponding narrow viewing angle display state. As shown in fig. 6, when the second control circuit controls the lower backlight source to be turned on, the backlight light of the lower backlight source is emitted through the lower light guide layer and the last light guide layer, the light emitting angle of the backlight module forms a fourth angle R4 of 0-60 °, and the screen assembly obtains a corresponding wide viewing angle display state.

And when the second control circuit controls the upper layer backlight light source and the lower layer backlight light source to be started simultaneously, the light ray adjusting structure obtains a fifth light guiding state. At this time, the backlight light of the upper layer backlight source passes through the upper layer light guide layer and then is emitted out of the light emitting main body, and the emitted light and the light emitting surface form a fifth angle R5 as shown by a dotted line in fig. 7; the backlight light of the lower backlight source passes through the upper light guide layer and the lower light guide layer and then exits out of the light emitting main body, the emitted light and the light exiting surface form a sixth angle R6 shown by a solid line in fig. 7, and the light exiting angle α of the final light adjusting structure is the larger sixth angle of the fifth angle and the sixth angle.

Due to the influence of the backlight brightness, a fifth light guide state obtained by the light adjusting structure after the upper layer backlight light source and the lower layer backlight light source are started simultaneously is slightly different from a third light guide state or a fourth light guide state. Therefore, in other embodiments, the brightness of the two upper layer backlight light sources and/or the brightness of the lower layer backlight light sources may be further adjusted to obtain other light guiding states with weakly changing light emitting angles.

It should be noted that, the material of upper leaded light layer and lower leaded light layer can be PC (Polycarbonate), and the thickness of upper leaded light layer and lower leaded light layer all can be less than 1mm to reduce the influence of leaded light layer to backlight unit and screen subassembly thickness. In an embodiment, the upper light guiding layer may be a light guiding structure such as a light guiding plate, a light guiding film, etc., which is not limited in this disclosure; the upper light guide layer may be a light guide structure such as a light guide plate, a light guide film, etc., which is not limited by the present disclosure.

According to the above embodiment, the present disclosure further provides a screen assembly control device, to which the screen assembly control device is applied, fig. 9 is a block diagram of a structure of a screen assembly control device in an exemplary embodiment of the present disclosure, and as shown in fig. 9, the screen assembly control device 90 includes: a receiving unit 91 and a control unit 92. Wherein:

the receiving unit 91 is configured to receive a control instruction for the backlight module.

The control unit 92 is configured to switch the light guiding state of the light path adjusting structure according to the control instruction, so that the emergent light passing through the light path adjusting structure and the light receiving surface of the display module form a corresponding light emergent angle. Wherein, the display module assembly can form corresponding visual angle according to the light-emitting angle who jets out light.

In an embodiment, the light path adjusting structure includes a liquid crystal film layer, the screen module further includes a first control circuit electrically connected to the liquid crystal film layer, and the control unit may include a first control subunit.

The first control subunit is configured to adjust a voltage applied to the liquid crystal film layer through the first control line according to the control instruction, so that the liquid crystal in the liquid crystal film layer is rotated to a preset spatial posture. The light guiding state of the liquid crystal film layer is matched with the preset space posture of the liquid crystal body.

In another embodiment, the light path adjusting structure includes at least two light guide layers, the screen assembly further includes a second control circuit and backlight light sources corresponding to the light guide layers one by one, and the second control circuit is electrically connected to the backlight light sources respectively. The control unit may comprise a second control subunit.

The second control subunit is configured to control the brightness of the backlight light source through the second control line according to the control instruction, so that the backlight light of at least one backlight light source passes through the corresponding light guide layer or the light guide layer combination. The light guide state of the light path adjusting structure is matched with the backlight light brightness of the backlight light source and/or the light guide property of the light guide layer through which the backlight light of the backlight light source passes.

With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.

For the device embodiments, since they substantially correspond to the method embodiments, reference may be made to the partial description of the method embodiments for relevant points. The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the disclosed solution. One of ordinary skill in the art can understand and implement it without inventive effort.

Correspondingly, the present disclosure also provides a device for controlling a screen assembly, comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to:

receiving a control instruction aiming at the backlight module, and switching the light guide state of the light path adjusting structure according to the control instruction so as to enable the emergent light rays passing through the light path adjusting structure to form a corresponding light emergent angle with a light receiving surface of the display module; wherein, the display module assembly can form corresponding visual angle according to the light-emitting angle who jets out light.

Accordingly, the present disclosure also provides a terminal comprising a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured for execution by the one or more processors to include instructions for: receiving a control instruction aiming at the backlight module, and switching the light guide state of the light path adjusting structure according to the control instruction so as to enable the emergent light rays passing through the light path adjusting structure to form a corresponding light emergent angle with a light receiving surface of the display module; wherein, the display module assembly can form corresponding visual angle according to the light-emitting angle who jets out light.

Fig. 10 is a block diagram illustrating an apparatus for screen assembly control according to an exemplary embodiment. For example, the apparatus 1000 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.

Referring to fig. 10, the apparatus 1000 may include one or more of the following components: processing component 1002, memory 1004, power component 1006, multimedia component 1008, audio component 1010, input/output (I/O) interface 1012, sensor component 1014, and communications component 1016.

The processing component 1002 generally controls the overall operation of the device 1000, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 1002 may include one or more processors 1020 to execute instructions to perform all or a portion of the steps of the methods described above. Further, processing component 1002 may include one or more modules that facilitate interaction between processing component 1002 and other components. For example, the processing component 1002 may include a multimedia module to facilitate interaction between the multimedia component 1008 and the processing component 1002.

The memory 1004 is configured to store various types of data to support operations at the apparatus 1000. Examples of such data include instructions for any application or method operating on device 1000, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 1004 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 power supply component 1006 provides power to the various components of the device 1000. The power components 1006 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 1000.

The multimedia component 1008 includes a screen that provides an output interface between the device 1000 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen 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 1008 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 1000 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 1010 is configured to output and/or input audio signals. For example, audio component 1010 includes a Microphone (MIC) configured to receive external audio signals when apparatus 1000 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may further be stored in the memory 1004 or transmitted via the communication component 1016. In some embodiments, audio component 1010 also includes a speaker for outputting audio signals.

I/O interface 1012 provides an interface between processing component 1002 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 1014 includes one or more sensors for providing various aspects of status assessment for the device 1000. For example, sensor assembly 1014 may detect an open/closed state of device 1000, the relative positioning of components, such as a display and keypad of device 1000, the change in position of device 1000 or a component of device 1000, the presence or absence of user contact with device 1000, the orientation or acceleration/deceleration of device 1000, and the change in temperature of device 1000. The sensor assembly 1014 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 1014 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1014 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 1016 is configured to facilitate communications between the apparatus 1000 and other devices in a wired or wireless manner. The apparatus 1000 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, 4G LTE, 5G NR, or a combination thereof. In an exemplary embodiment, the communication component 1016 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communications component 1016 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 an exemplary embodiment, the apparatus 1000 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

The present disclosure further proposes a computer readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the steps of the screen assembly control method. In an exemplary embodiment, a non-transitory computer readable storage medium including instructions, such as the memory 1004 including instructions, executable by the processor 1020 of the device 1000 to perform the above-described light assembly control method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

The present disclosure further proposes an electronic device, comprising: a device body, the screen assembly, a processor, and a memory for storing processor-executable instructions. Wherein the screen assembly is assembled to the device body, and the processor is configured to: and receiving a control instruction aiming at the backlight module, and switching the light guide state of the light path adjusting structure according to the control instruction so that the emergent light rays passing through the light path adjusting structure and the light ray receiving surface of the display module form a corresponding light emergent angle. Wherein, the display module assembly can form corresponding visual angle according to the light-emitting angle who jets out light.

It should be noted that the electronic device may be a mobile phone, a tablet computer, a vehicle-mounted terminal, or a medical terminal, and the disclosure is not limited thereto.

The backlight module for the screen component is provided with the light emitting main body and the light path adjusting structure, and the light path adjusting structure comprises at least two light guide states, so that the light emitted through the light path adjusting structure can form different light emitting angles with the light receiving surface of the display module, and the display module forms a corresponding visual angle according to the light emitting angle of the light emitted. Therefore, the method realizes the visual angle adjustment of the screen assembly only by adjusting the light-emitting angle of the light emitted from the backlight module, so that the screen assembly and the electronic equipment can take the visual angle adjustment under different use scenes into consideration, the structural change of the display module is avoided, and the use performance of the screen assembly and the electronic equipment is improved.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A screen assembly is characterized by comprising a display module and a backlight module;

2. A screen assembly as recited in claim 1, wherein the optical path adjusting structure includes a liquid crystal film layer, the screen module further includes a first control circuit electrically connected to the liquid crystal film layer, and liquid crystal in the liquid crystal film layer rotates to a predetermined spatial posture according to a predetermined voltage provided by the first control circuit, so that the liquid crystal film layer is switched to a corresponding light guiding state.

3. A screen assembly as recited in claim 2, wherein the liquid crystal film layer includes a first light directing state and a second light directing state;

4. A screen assembly as recited in claim 2, wherein the liquid crystal film layer includes a plurality of successive light directing states that are continuously dynamically adjusted in response to the continuously changing predetermined voltage values.

5. The screen assembly of claim 2, wherein the liquid crystal film layer is disposed on a top side of the light emergent body, and the light emergent surface is located on a side of the liquid crystal film layer facing the display module.

6. A screen assembly as recited in claim 1, wherein the light path modifying structure includes at least two light guiding layers; the screen component also comprises second control circuits and backlight light sources which are in one-to-one correspondence with the light guide layers, and the second control circuits are respectively and electrically connected with the backlight light sources; the backlight light of at least one backlight light source passes through the corresponding light guide layer or the combination of the light guide layers, so that the light path adjusting structure is switched to the corresponding light guide state.

7. The screen assembly of claim 6, wherein the light path adjusting structure comprises an upper light guide layer and a lower light guide layer arranged in a stacked manner, and the backlight light source comprises an upper backlight light source and a lower backlight light source, the upper backlight light source is arranged on one side of the upper light guide layer, and the lower backlight light source is arranged on one side of the lower light guide layer.

8. A screen assembly as recited in claim 6, wherein the backlight light sources are disposed on sides of the light guide layer in a one-to-one correspondence.

9. A screen assembly as recited in claim 6, wherein any two of the light guide layers have different light guide directions.

10. A screen assembly as recited in claim 6, wherein at least two of the light guide layers are disposed in a stack.

11. A screen assembly as recited in claim 6, wherein the light exiting body further comprises a light collecting layer disposed over the light guiding layer; and the light-gathering microstructure in the light-gathering layer forms a preset light-gathering range.

12. A screen assembly as recited in claim 1, wherein the light extraction body further comprises a reflective layer disposed at a bottom of the light extraction body.

13. A screen assembly control method applied to the screen assembly according to any one of claims 1 to 12, the method comprising:

receiving a control instruction aiming at the backlight module;

14. The screen assembly controlling method of claim 13, wherein the optical path adjusting structure includes a liquid crystal film layer, the screen module further includes a first control circuit electrically connected to the liquid crystal film layer; switching the light guiding state of the light path adjusting structure according to the control instruction comprises:

15. The screen assembly control method of claim 13, wherein the light path adjusting structure includes at least two light guide layers; the screen component also comprises second control circuits and backlight light sources which are in one-to-one correspondence with the light guide layers, and the second control circuits are respectively and electrically connected with the backlight light sources; switching the light guiding state of the light path adjusting structure according to the control instruction comprises:

16. A screen assembly control apparatus, applied to a screen assembly according to any one of claims 1 to 12, the apparatus comprising:

17. The screen assembly controlling device of claim 16, wherein the light path adjusting structure includes a liquid crystal film layer, the screen module further includes a first control circuit electrically connected to the liquid crystal film layer; the control unit includes:

18. The screen assembly control of claim 16, wherein the light path adjustment structure includes at least two light guide layers; the screen component also comprises second control circuits and backlight light sources which are in one-to-one correspondence with the light guide layers, and the second control circuits are respectively and electrically connected with the backlight light sources; the control unit includes:

19. An electronic device, comprising:

an apparatus main body;

the screen assembly of any one of claims 1-12 assembled to the device body;

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

receiving a control instruction aiming at the backlight module;

20. A computer readable storage medium having computer instructions stored thereon which, when executed by a processor, implement: the steps of the screen assembly control method of any one of claims 13-15.