CN113741069A

CN113741069A - Visual angle controllable module, visual angle control method and electronic equipment

Info

Publication number: CN113741069A
Application number: CN202010459986.4A
Authority: CN
Inventors: 蒋臣迪; 孙增才
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-12-03
Anticipated expiration: 2040-05-27
Also published as: CN113741069B; WO2021238345A1

Abstract

The application provides a module with a controllable visual angle, a method for controlling the visual angle and electronic equipment. The view angle controllable module includes an upper electrode layer, a lower electrode layer, and a lens array layer and a liquid layer disposed between the upper electrode layer and the lower electrode layer in a stacked manner. The light incident to the module passes through the liquid layer and the lens array layer to be emitted out of the module, the incident light is refracted at the interface of the liquid layer and the lens array layer, the refractive index of the lens array layer is a target refractive index, the refractive index of the liquid layer is a first refractive index under the condition that the voltage between the upper electrode layer and the lower electrode layer is a first voltage, and the refracted light is emitted out of the module along a first direction; under the condition that the voltage between the upper electrode layer and the lower electrode layer is the second voltage different from the first voltage, the refractive index of the liquid layer is the second refractive index different from the first refractive index, and the refracted light is emitted out of the module along the second direction different from the first direction, so that the adjustment of the visual angle of the module with the controllable visual angle is realized.

Description

Visual angle controllable module, visual angle control method and electronic equipment

Technical Field

The present disclosure relates to the field of electronic devices, and more particularly, to a module with a controllable viewing angle, a method for controlling a viewing angle, and an electronic device.

Background

With the development of society, people pay more and more attention to private information of individuals. For example, when a user is using an electronic device, private content related to an individual user is included in content displayed on a display on the electronic device, and the user wants the private content related to the individual user not to be peeped by others, and therefore, the user needs to limit the viewing angle of the electronic device.

Currently, the adjustment of the viewing angle of an electronic device can be achieved by pasting a film of a louver structure on a display. When the manufacturing of the film of the blind structure is completed, the interval between the slates and the height of the slates in the film of the blind structure are determined, and thus, the film of the blind structure can only realize the adjustment of one viewing angle, which limits the angle of the display viewed by the user.

Disclosure of Invention

The application provides a module with a controllable visual angle, a method for controlling the visual angle and electronic equipment, which can adjust the visual angle of part or all display areas on a display interface of the electronic equipment according to information displayed on the electronic equipment.

In a first aspect, a view angle controllable module is provided, which includes: an upper electrode layer and a lower electrode layer; a lens array layer disposed between the upper electrode layer and the lower electrode layer; a liquid layer disposed between the lower electrode layer and the lens array layer; the light incident to the module passes through the liquid layer and the lens array layer and exits the module, the light from the liquid layer is incident to an interface of the liquid layer and the lens array layer along a target direction and is refracted, the refractive index of the lens array layer is a target refractive index, the refractive index of the liquid layer is a first refractive index under the condition that the voltage between the upper electrode layer and the lower electrode layer is a first voltage, the refracted light passes through the lens array layer along the first direction, and the first refractive index is different from the target refractive index; in a case where a voltage between the upper electrode layer and the lower electrode layer is a second voltage, the refractive index of the liquid layer is a second refractive index, the refracted light passes through the lens array layer in a second direction, the second voltage is different from the first voltage, the second refractive index is different from the first refractive index, the second refractive index is different from the target refractive index, and the second direction is different from the first direction.

In this application, the view angle controllable module includes an upper electrode layer, a lower electrode layer, a lens array layer disposed between the upper electrode layer and the lower electrode layer, and a liquid layer disposed between the lower electrode layer and the lens array layer. The light incident to the module passes through the liquid layer and the lens array layer to be emitted out of the module, the incident light is refracted at the interface of the liquid layer and the lens array layer, the refractive index of the lens array layer is a target refractive index, the refractive index of the liquid layer is a first refractive index under the condition that the voltage between the upper electrode layer and the lower electrode layer is a first voltage, and the refracted light is emitted out of the module along a first direction; under the condition that the voltage between the upper electrode layer and the lower electrode layer is the second voltage different from the first voltage, the refractive index of the liquid layer is the second refractive index different from the first refractive index, and the refracted light is emitted out of the module along the second direction different from the first direction, so that the adjustment of the visual angle of the module with the controllable visual angle is realized.

With reference to the first aspect, in one possible implementation manner, the lower electrode layer includes: the grooves correspond to the lenses of the lens array layer one to one, and the grooves are used for accommodating the liquid layer.

Through set up the recess with a plurality of lens one-to-one on lower electrode layer, this recess can hold the liquid of liquid layer, realizes the encapsulation to liquid.

With reference to the first aspect, in one possible implementation manner, the lens array layer includes convex lenses.

With reference to the first aspect, in one possible implementation manner, the upper electrode layer includes: the grooves correspond to the lenses of the lens array layer one to one, and the grooves are used for accommodating the liquid layer.

Through set up the recess with a plurality of lens one-to-one on last electrode layer, this recess can hold the liquid of liquid layer, realizes the encapsulation to liquid.

With reference to the first aspect, in one possible implementation manner, the lens array layer includes concave lenses.

With reference to the first aspect, in a possible implementation manner, the upper electrode layer further includes a plurality of electrodes, and the plurality of electrodes correspond to the plurality of lenses in a one-to-one manner, and/or the lower electrode layer further includes a plurality of electrodes, and the plurality of electrodes correspond to the plurality of lenses in a one-to-one manner.

In the case where the upper electrode layer includes a plurality of electrodes, the voltage between the upper electrode layer and the lower electrode layer is a second voltage, and it is understood that the voltages of a part of the electrodes in the upper electrode layer and the lower electrode layer are a second voltage.

In the case where the lower electrode layer includes a plurality of electrodes, the voltage between the upper electrode layer and the lower electrode layer is a second voltage, which may be understood as a voltage of a part of the electrodes in the upper electrode layer and the lower electrode layer is a second voltage.

In the case where the upper electrode layer includes a plurality of electrodes, and the lower electrode layer includes a plurality of electrodes, the voltage between the upper electrode layer and the lower electrode layer being the second voltage may be understood as the voltage between a part of the electrodes in the upper electrode layer and the electrodes in the lower electrode layer corresponding to the part of the electrodes in the upper electrode layer being the second voltage.

With reference to the first aspect, in a possible implementation manner, the module further includes: an upper substrate disposed above the upper electrode layer and a lower substrate disposed below the lower electrode layer.

The upper substrate is arranged above the upper electrode layer, the lower substrate is arranged below the lower electrode layer, strength supporting and protection can be carried out on the module with the controllable visual angle, and reliability of the module with the controllable visual angle is improved.

In a second aspect, a view angle controllable module is provided, which includes: an upper electrode layer and a lower electrode layer; a lens array layer disposed between the upper electrode layer and the lower electrode layer; a liquid layer disposed between the upper electrode layer and the lens array layer; the light incident to the module passes through the lens array layer and the liquid layer and exits the module, the light from the lens array layer is incident to the interface of the lens array layer and the liquid layer along a target direction and is refracted, the refractive index of the lens array layer is a target refractive index, the refractive index of the liquid layer is a third refractive index under the condition that the voltage between the upper electrode layer and the lower electrode layer is a third voltage, the refracted light passes through the liquid layer along a third direction, and the third refractive index is different from the target refractive index; in a case where a voltage between the upper electrode layer and the lower electrode layer is a fourth voltage, the refractive index of the liquid layer is a fourth refractive index, the refracted light passes through the liquid layer in a fourth direction, the fourth voltage is different from the third voltage, the fourth refractive index is different from the third refractive index, the fourth refractive index is different from the target refractive index, and the fourth direction is different from the third direction.

In this application, the view angle controllable module includes an upper electrode layer, a lower electrode layer, a lens array layer disposed between the upper electrode layer and the lower electrode layer, and a liquid layer disposed between the upper electrode layer and the lens array layer. The light incident to the module passes through the lens array layer and the liquid layer ejection module, the incident light is refracted at the interface of the lens array layer and the liquid layer, the refractive index of the lens array layer is a target refractive index, the refractive index of the liquid layer is a third refractive index under the condition that the voltage between the upper electrode layer and the lower electrode layer is a third voltage, and the refracted light is ejected out of the module along a third direction; under the condition that the voltage between the upper electrode layer and the lower electrode layer is a fourth voltage different from the third voltage, the refractive index of the liquid layer is a fourth refractive index different from the third refractive index, and the refracted light is emitted out of the module along a fourth direction different from the third direction, so that the adjustment of the visual angle of the module with the controllable visual angle is realized.

With reference to the second aspect, in one possible implementation manner, the lower electrode layer includes: the grooves correspond to the lenses of the lens array layer one to one, and the grooves are used for accommodating the liquid layer.

With reference to the second aspect, in one possible implementation manner, the lens array layer includes concave lenses.

With reference to the second aspect, in one possible implementation manner, the upper electrode layer includes: the grooves correspond to the lenses of the lens array layer one to one, and the grooves are used for accommodating the liquid layer.

With reference to the second aspect, in one possible implementation manner, the lens array layer includes convex lenses.

With reference to the second aspect, in a possible implementation manner, the upper electrode layer further includes a plurality of electrodes, and the plurality of electrodes correspond to the plurality of lenses in a one-to-one manner, and/or the lower electrode layer further includes a plurality of electrodes, and the plurality of electrodes correspond to the plurality of lenses in a one-to-one manner.

With reference to the second aspect, in a possible implementation manner, the module further includes: an upper substrate disposed above the upper electrode layer and a lower substrate disposed below the lower electrode layer.

In a third aspect, a display is provided, comprising: the liquid crystal display panel comprises a display module and a backlight module, wherein the display module comprises a plurality of display units, and the plurality of display units correspond to the plurality of lenses one to one; the module with the controllable visual angle is arranged between the display module and the backlight module, or the module with the controllable visual angle is arranged above the liquid crystal display panel, and the module with the controllable visual angle is used for adjusting the visual angle of the display.

In a fourth aspect, a method for controlling a viewing angle is provided, where the method is applied to an electronic device including a display in any one of the possible implementations of the third aspect and the third aspect, and the method includes: determining a first display area of a visual angle to be adjusted on a display interface of the electronic equipment; adjusting a voltage between a first electrode and a second electrode corresponding to the first display area, so that a viewing angle of the first display area changes, wherein the first electrode is an electrode of the upper electrode layer, the second electrode is an electrode of the lower electrode layer, and the first electrode corresponds to the second electrode.

The first electrode may be one or more.

The second electrode may be one or more.

In the application, a display area with a visual angle to be adjusted is determined, a voltage between a first electrode in an upper electrode layer and a second electrode in a lower electrode layer corresponding to the display area with the visual angle to be adjusted is adjusted, the first electrode corresponds to the second electrode, and adjustment of the visual angle of the first display area is achieved.

With reference to the fourth aspect, in a possible implementation manner, the determining a first display area of a display interface of the electronic device, where a visual angle is to be adjusted, includes: identifying the type of information displayed on a display interface of the electronic equipment, wherein the type of the displayed information comprises a privacy type and a non-privacy type; determining a display area corresponding to the display interface of the electronic device as the first display area when the type of the information displayed on the display interface of the electronic device includes information of a privacy type.

The method includes the steps of identifying the type of information displayed on a display interface of the electronic equipment, determining a display area corresponding to the whole display interface of the electronic equipment as a first display area under the condition that the type of the information displayed on the display interface of the electronic equipment comprises privacy type information, adjusting voltage between a first electrode in an upper electrode layer and a second electrode in a lower electrode layer corresponding to the first display area, enabling the first electrode and the second electrode to correspond to each other, achieving adjustment of the visual angle of the first display area, and achieving adjustment of the visual angle of the whole display area on the display interface of the electronic equipment.

With reference to the fourth aspect, in a possible implementation manner, the determining a first display area of a display interface of the electronic device, where a visual angle is to be adjusted, includes: identifying a type of information displayed on a display interface of the electronic equipment, wherein the display interface of the electronic equipment comprises at least one window, and the type of the displayed information comprises a privacy type and a non-privacy type; and determining a display area corresponding to a window related to the information of the privacy type on the display interface of the electronic equipment as the first display area when the type of the information displayed on the display interface of the electronic equipment comprises the information of the privacy type.

The method includes the steps of identifying the type of information displayed on a display interface of the electronic equipment, determining a display area corresponding to a window related to the information of the privacy type in the display interface of the electronic equipment as a first display area under the condition that the type of the information displayed on the display interface of the electronic equipment comprises the information of the privacy type, adjusting the voltage between a first electrode in an upper electrode layer and a second electrode in a lower electrode layer corresponding to the first display area, enabling the first electrode and the second electrode to correspond to each other, enabling adjustment of the visual angle of the first display area, and enabling adjustment of the visual angle of the display area related to the information of the privacy type on the display interface of the electronic equipment.

With reference to the fourth aspect, in a possible implementation manner, the determining, as the first display area, a display area corresponding to a window of information related to a privacy type on a display interface of the electronic device includes: and determining a display area corresponding to the window of the information related to the privacy type according to the position of the window of the information related to the privacy type.

The position of the window related to the information of the privacy type can be understood as the position of the window related to the information of the privacy type on the display interface of the electronic equipment.

In one embodiment, determining the display area corresponding to the window of information related to the privacy type based on the position of the window of information related to the privacy type includes: determining a display area corresponding to the window of the information related to the privacy type according to the first vertex coordinates of the window of the information related to the privacy type, the length of the window of the information related to the privacy type, and the width of the window of the information related to the privacy type. The first vertex may be any one of the vertices of a window of information relating to a privacy type.

In another embodiment, determining the display area corresponding to the window of information related to the privacy type based on the position of the window of information related to the privacy type includes: the determining of the display area corresponding to the window of the information related to the privacy type according to the position of the window of the information related to the privacy type may be determining the display area corresponding to the window of the information related to the privacy type according to four vertex coordinates of the window of the information related to the privacy type. Wherein the coordinates may be coordinates on a display interface of the electronic device.

With reference to the fourth aspect, in a possible implementation manner, the determining a first display area of a display interface of the electronic device, where a visual angle is to be adjusted, includes: detecting the selection operation of the selection track of the user; and determining a selection area corresponding to the selection operation as a first display area.

According to a selection area corresponding to a user selection operation, a display area corresponding to the selection area in a display interface of the electronic device is determined as a first display area, voltage between a first electrode in an upper electrode layer and a second electrode in a lower electrode layer corresponding to the first display area is adjusted, the first electrode corresponds to the second electrode, adjustment of a visual angle of the first display area is achieved, and adjustment of the visual angle of the display area on the display interface of the electronic device according to requirements of a user is achieved.

With reference to the fourth aspect, in a possible implementation manner, in a case that the type of information displayed on the display interface of the electronic device includes information of a privacy type, the method further includes: adjusting a voltage between a third electrode and a fourth electrode corresponding to a second display area, so that a visual angle of the second display area changes, where the third electrode is an electrode of the upper electrode layer, the fourth electrode is an electrode of the lower electrode layer, the third electrode corresponds to the fourth electrode, and the second display area is a display area on a display interface of the electronic device except for the first display area.

The third electrode may be one or more.

The fourth electrode may be one or more.

With reference to the fourth aspect, in one possible implementation manner, the information of the privacy type includes information related to a privacy application, information related to a privacy keyword, information related to a privacy text, information related to a privacy picture, and/or information related to a privacy video.

In a fifth aspect, an electronic device is provided, where the electronic device includes the first aspect and any one of the possible view-angle controllable modules of the first aspect.

In a sixth aspect, an electronic device is provided, which includes the second aspect and a view angle controllable module of any one of the second aspects.

In a seventh aspect, an electronic device is provided, including: a display according to the third aspect; one or more processors; a memory; a plurality of application programs; and one or more programs, wherein the one or more programs are stored in the memory, which when executed by the processor, cause the electronic device to perform the steps of: determining a first display area of a visual angle to be adjusted on a display interface of the electronic equipment; adjusting a voltage between a first electrode and a second electrode corresponding to the first display area, so that a viewing angle of the first display area changes, wherein the first electrode is an electrode of the upper electrode layer, the second electrode is an electrode of the lower electrode layer, and the first electrode corresponds to the second electrode.

With reference to the seventh aspect, in one possible implementation manner, when the one or more programs are executed by the processor, the electronic device is caused to perform the following steps: identifying the type of information displayed on a display interface of the electronic equipment, wherein the type of the displayed information comprises a privacy type and a non-privacy type; determining a display area corresponding to the display interface of the electronic device as the first display area when the type of the information displayed on the display interface of the electronic device includes information of a privacy type.

With reference to the seventh aspect, in one possible implementation manner, when the one or more programs are executed by the processor, the electronic device is caused to perform the following steps: identifying a type of information displayed on a display interface of the electronic equipment, wherein the display interface of the electronic equipment comprises at least one window, and the type of the displayed information comprises a privacy type and a non-privacy type; and determining a display area corresponding to a window related to the information of the privacy type on the display interface of the electronic equipment as the first display area when the type of the information displayed on the display interface of the electronic equipment comprises the information of the privacy type.

With reference to the seventh aspect, in one possible implementation manner, when the one or more programs are executed by the processor, the electronic device is caused to perform the following steps: and determining a display area corresponding to the window of the information related to the privacy type according to the position of the window of the information related to the privacy type.

With reference to the seventh aspect, in one possible implementation manner, when the one or more programs are executed by the processor, the electronic device is caused to perform the following steps: detecting the selection operation of the selection track of the user; and determining a selection area corresponding to the selection track as a first display area.

With reference to the seventh aspect, in one possible implementation manner, when the one or more programs are executed by the processor, the electronic device is caused to perform the following steps: adjusting a voltage between a third electrode and a fourth electrode corresponding to a second display area, so that a visual angle of the second display area changes, where the third electrode is an electrode of the upper electrode layer, the fourth electrode is an electrode of the lower electrode layer, the third electrode corresponds to the fourth electrode, and the second display area is a display area on a display interface of the electronic device except for the first display area.

With reference to the seventh aspect, in one possible implementation manner, the information of the privacy type includes information related to a privacy application, information related to a privacy keyword, information related to a privacy text, information related to a privacy picture, and/or information related to a privacy video.

In an eighth aspect, a computer-readable storage medium is provided, which includes computer instructions that, when executed on an electronic device, cause the electronic device to perform the method for controlling a viewing angle in any of the above-mentioned fourth aspect and possible implementations of the fourth aspect.

A ninth aspect provides a computer program product for causing a computer to perform a method of controlling a viewing angle in any one of the possible implementations of the fourth aspect and the fourth aspect described above, when the computer program product runs on the computer.

In a tenth aspect, the present application provides a chip system, which includes a memory for storing computer instructions and a processor for executing the computer instructions stored in the memory to perform the method for controlling a viewing angle in any one of the above-mentioned fourth aspect and possible implementation of the fourth aspect.

Drawings

Fig. 1 is a schematic structural diagram of an example of an electronic device according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a side-in type backlight display.

FIG. 3 is a schematic diagram of a graphical user interface displayed by a notebook computer when the user is using the notebook computer.

Fig. 4 is a schematic view of a structure of a film of a louver structure.

Fig. 5 is a schematic structural diagram of an example of a module with a controllable viewing angle according to an embodiment of the present disclosure.

Fig. 6 is a schematic structural diagram of another example of a view-angle controllable module according to an embodiment of the present disclosure.

Fig. 7 is a schematic structural diagram of another example of a view-angle controllable module according to an embodiment of the present disclosure.

Fig. 8 is a schematic structural diagram of another example of a view-angle controllable module according to an embodiment of the present disclosure.

Fig. 9 is a schematic view illustrating paths of light rays in a viewing-angle controllable module according to an embodiment of the present disclosure.

Fig. 10 is a schematic flowchart of a method for controlling a viewing angle according to an embodiment of the present application.

Fig. 11 is a schematic diagram illustrating an example of a change in a viewing angle of an interface of a notebook computer according to an embodiment of the present disclosure.

Fig. 12 is a schematic view illustrating a change in a viewing angle of an interface of a notebook computer according to another embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

To facilitate understanding of the embodiments of the present application, the following description is made before describing the embodiments of the present application.

Firstly, in all the drawings in the embodiments of the present application, the directions of an x axis, a y axis and a z axis are perpendicular to each other, the direction of the z axis can be understood as the thickness direction of the terminal device, and the forward direction of the z axis is the direction from the rear shell of the terminal device to the screen of the terminal device; the direction of the x axis can be understood as the length direction of the terminal equipment; the direction of the y-axis may be understood as the width direction of the terminal device.

Second, in the embodiments of the present application, the term "above" or "below" refers to a positional relationship in the z-axis direction, and "above" refers to a positive direction along the z-axis, and "below" refers to a negative direction along the z-axis.

Third, the first, second and various numerical numbers in the embodiments of the present application are merely for convenience of description and are not intended to limit the scope of the embodiments of the present application. For example, to distinguish between different diffusion membranes, etc.

Fig. 1 shows a schematic structural diagram of an electronic device 100.

The electronic device 100 may be a mobile phone, a tablet computer, a desktop computer, a laptop computer, a handheld computer, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, a cellular phone, a Personal Digital Assistant (PDA), an Augmented Reality (AR) device, a Virtual Reality (VR) device, an Artificial Intelligence (AI) device, a wearable device, a vehicle-mounted device, a smart home device, and/or a smart city device, and the specific type of the electronic device is not particularly limited by the embodiments of the present application.

The electronic device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a Universal Serial Bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a key 190, a motor 191, an indicator 192, a camera 193, a display screen 194, a Subscriber Identification Module (SIM) card interface 195, and the like. The sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, and the like.

It is to be understood that the illustrated structure of the embodiment of the present invention does not specifically limit the electronic device 100. In other embodiments of the present application, electronic device 100 may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 110 may include one or more processing units, such as: the processor 110 may include an Application Processor (AP), a modem processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), etc. The different processing units may be separate devices or may be integrated into one or more processors.

The controller can generate an operation control signal according to the instruction operation code and the timing signal to complete the control of instruction fetching and instruction execution.

A memory may also be provided in processor 110 for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may hold instructions or data that have just been used or recycled by the processor 110. If the processor 110 needs to reuse the instruction or data, it can be called directly from the memory. Avoiding repeated accesses reduces the latency of the processor 110, thereby increasing the efficiency of the system.

In some embodiments, processor 110 may include one or more interfaces. The interface may include an integrated circuit (I2C) interface, an integrated circuit built-in audio (I2S) interface, a Pulse Code Modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a Mobile Industry Processor Interface (MIPI), a general-purpose input/output (GPIO) interface, a Subscriber Identity Module (SIM) interface, and/or a Universal Serial Bus (USB) interface, etc.

The I2C interface is a bi-directional synchronous serial bus that includes a serial data line (SDA) and a Serial Clock Line (SCL). In some embodiments, processor 110 may include multiple sets of I2C buses. The processor 110 may be coupled to the touch sensor 180K, the charger, the flash, the camera 193, etc. through different I2C bus interfaces, respectively. For example: the processor 110 may be coupled to the touch sensor 180K via an I2C interface, such that the processor 110 and the touch sensor 180K communicate via an I2C bus interface to implement the touch functionality of the electronic device 100.

The I2S interface may be used for audio communication. The PCM interface may also be used for audio communication, sampling, quantizing and encoding analog signals. The UART interface is a universal serial data bus used for asynchronous communications. The bus may be a bidirectional communication bus. It converts the data to be transmitted between serial communication and parallel communication. MIPI interfaces may be used to connect processor 110 with peripheral devices such as display screen 194, camera 193, and the like. The MIPI interface includes a Camera Serial Interface (CSI), a Display Serial Interface (DSI), and the like. The GPIO interface may be configured by software. The GPIO interface may be configured as a control signal and may also be configured as a data signal. The USB interface 130 may be used to connect other electronic devices, such as a PC and the like through the USB interface.

It should be understood that the connection relationship between the modules according to the embodiment of the present invention is only illustrative, and is not limited to the structure of the electronic device 100. In other embodiments of the present application, the electronic device 100 may also adopt different interface connection manners or a combination of multiple interface connection manners in the above embodiments.

The charging management module 140 is configured to receive charging input from a charger.

The power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110.

The wireless communication function of the electronic device 100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like.

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the electronic device 100 may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a solution including 2G/3G/4G/5G wireless communication applied to the electronic device 100.

The wireless communication module 160 may provide a solution for wireless communication applied to the electronic device 100, including Wireless Local Area Networks (WLANs) (e.g., wireless fidelity (Wi-Fi) networks), bluetooth (bluetooth, BT), Global Navigation Satellite System (GNSS), Frequency Modulation (FM), Near Field Communication (NFC), Infrared (IR), and the like. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, performs frequency modulation and filtering processing on electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, perform frequency modulation and amplification on the signal, and convert the signal into electromagnetic waves through the antenna 2 to radiate the electromagnetic waves.

The electronic device 100 implements display functions via the GPU, the display screen 194, and the application processor. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and an application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 110 may include one or more GPUs that execute program instructions to generate or alter display information.

The display screen 194 is used to display images, video, and the like. The display screen 194 includes a display panel. The display panel may adopt a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED), a flexible light-emitting diode (FLED), a miniature, a Micro-oeld, a quantum dot light-emitting diode (QLED), and the like. In some embodiments, the electronic device 100 may include 1 or N display screens 194, with N being a positive integer greater than 1.

The electronic device 100 may implement a shooting function through the ISP, the camera 193, the video codec, the GPU, the display 194, the application processor, and the like. The ISP is used for processing data fed back by the camera 193. The camera 193 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image to the photosensitive element.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to extend the memory capability of the electronic device 100. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. For example, files such as music, video, etc. are saved in an external memory card. The internal memory 121 may be used to store computer-executable program code, which includes instructions. The internal memory 121 may include a program storage area and a data storage area. The storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like. The storage data area may store data (such as audio data, phone book, etc.) created during use of the electronic device 100, and the like.

The electronic device 100 may implement audio functions via the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the headphone interface 170D, and the application processor. Such as music playing, recording, etc.

The audio module 170 is used to convert digital audio information into an analog audio signal output and also to convert an analog audio input into a digital audio signal. The audio module 170 may also be used to encode and decode audio signals. The speaker 170A, also called a "horn", is used to convert the audio electrical signal into an acoustic signal. The receiver 170B, also called "earpiece", is used to convert the electrical audio signal into an acoustic signal. The microphone 170C, also referred to as a "microphone," is used to convert sound signals into electrical signals.

The pressure sensor 180A is used for sensing a pressure signal, and converting the pressure signal into an electrical signal. The gyro sensor 180B may be used to determine the motion attitude of the electronic device 100. The air pressure sensor 180C is used to measure air pressure. The magnetic sensor 180D includes a hall sensor. The acceleration sensor 180E may detect the magnitude of acceleration of the electronic device 100 in various directions (typically three axes). A distance sensor 180F for measuring a distance. The electronic device 100 can utilize the proximity light sensor 180G to detect that the user holds the electronic device 100 close to the ear for talking, so as to automatically turn off the screen to achieve the purpose of saving power. The proximity light sensor 180G may also be used in a holster mode, a pocket mode automatically unlocks and locks the screen. The ambient light sensor 180L is used to sense the ambient light level. The fingerprint sensor 180H is used to collect a fingerprint. The temperature sensor 180J is used to detect temperature. The touch sensor 180K is also called a "touch device". The touch sensor 180K may be disposed on the display screen 194, and the touch sensor 180K and the display screen 194 form a touch screen, which is also called a "touch screen". The touch sensor 180K is used to detect a touch operation applied thereto or nearby. The touch sensor can communicate the detected touch operation to the application processor to determine the touch event type. Visual output associated with the touch operation may be provided through the display screen 194. In other embodiments, the touch sensor 180K may be disposed on a surface of the electronic device 100, different from the position of the display screen 194. The bone conduction sensor 180M may acquire a vibration signal.

The keys 190 include a power-on key, a volume key, and the like. The keys 190 may be mechanical keys. Or may be touch keys. The electronic apparatus 100 may receive a key input, and generate a key signal input related to user setting and function control of the electronic apparatus 100. The motor 191 may generate a vibration cue. The motor 191 may be used for incoming call vibration cues, as well as for touch vibration feedback. Indicator 192 may be an indicator light that may be used to indicate a state of charge, a change in charge, or a message, missed call, notification, etc. The SIM card interface 195 is used to connect a SIM card. The SIM card can be brought into and out of contact with the electronic apparatus 100 by being inserted into the SIM card interface 195 or being pulled out of the SIM card interface 195.

When the display panel included in the display screen 194 is an LCD, since the liquid crystal is a passive light emitting device, a light source is required to be disposed on the rear surface of the LCD, and the LCD displays various brightness by controlling the transmittance of light, and the light source is called a Backlight (Backlight). The backlight light sources mainly have three types: cold Cathode Fluorescent Lamp (CCFL), Electroluminescence (EL), and Light Emitting Diode (LED). Compared with CCFLs and ELs, the LED backlight has the characteristics of good light uniformity, wide color gamut coverage, high contrast, high brightness, low temperature resistance, strong adaptability, good reliability, no mercury pollution and the like, so the LED backlight becomes the mainstream light source of the LCD backlight module at present. According to the different distribution positions of the LED backlight light sources, the LCD can be divided into two types: side-entry backlight LCDs and direct-illumination backlight LCDs.

In the embodiment of the present application, the LCD of the electronic device may be a side-type backlight LCD, or a direct-type backlight LCD. The LCD generally includes a backlight module and a display module, wherein the display module is disposed above the backlight module, the light source of the side-in type backlight LCD is disposed at a side surface of the backlight module, and the light source of the straight-in type backlight LCD is disposed below the backlight module. Hereinafter, a side-type backlight LCD will be described as an example.

As shown in fig. 2, it is a schematic structural diagram of a side-entry type backlight LCD 1941. The lateral backlight LCD1941 includes a display module 19411, a backlight module 19412, and a backlight source 19413. The display module 19411 is above the backlight module 19412, and the backlight source 19413 is at a side of the backlight module 19412.

The backlight module 19412 includes, from top to bottom, an upper diffusion film 194121, a brightness enhancement film 194122, a lower diffusion film 194123, a light guide plate 194124, and a reflective layer 194125.

The reflective layer 194125 can also be called a reflective sheet, which is a mirror reflective film and mainly used to reflect the light exposed from the bottom back into the light guide plate 194124, so as to improve the utilization rate of the light.

The light guide plate 194124 generally comprises a substrate and a diffusion film, wherein the substrate may be polymethyl methacrylate (PMMA)PMMA) into a smooth slab; the diffusion film is typically a highly reflective and non-absorbing material such as silicon dioxide (SiO), and is formed by screen printing or injection molding a layer of tiny bumps 1941241 on the surface of the substrate₂) Or titanium dioxide (TiO)₂)。

The upper and

lower diffusion films

194123 and 194121 may also be called diffusion sheets, and the upper and

lower diffusion films

194123 and 194121 mainly function to diffuse light rays passing through the diffusion coating to make the light rays distributed more uniformly so that the shadow of the reflection point is not seen from the front. The upper and

lower diffuser films

194123, 194121 may also be composed of a substrate, typically polyethylene terephthalate (PET) or PMMA, having very high light transmittance, and a diffuse reflective coating.

The surface of the brightness enhancement film 194122 is provided with special prism structures which can modify the advancing direction of light and recycle the light which is not utilized outside the viewing angle, thereby achieving the function of gathering light and improving the brightness of the front surface of the LCD.

The display module 19411 includes, from top to bottom, an upper polarizer 194111, an upper substrate 194112, a color filter 194113, an upper electrode layer 194114, a liquid crystal layer 194115, a lower electrode layer 194116, a lower substrate 194117, and a lower polarizer 194118. The upper substrate 194112 and the lower substrate 194117 may serve as support and protection.

The LCD1941 can realize regional dimming, namely the backlight module 19412 is divided into a plurality of regions, the backlight brightness of each region can be independently controlled, and each pixel point can provide backlight brightness for the LCD1941 corresponding to one LED light source.

The LCD1941 displays an image by controlling the state of polarized light by an electric signal. The display module 19411 in the LCD can be regarded as a sandwich structure. That is, a liquid crystal layer 194115 is sandwiched between two polarizers (an upper polarizer 194111 and a lower polarizer 194118) having polarization directions perpendicular to each other, and the liquid crystal in the liquid crystal layer 194115 can be controlled to rotate by an external electric field. In practical application, data signal voltages with different magnitudes are respectively input to each pixel through the switching action of a Thin Film Transistor (TFT); the liquid crystal molecules rotate in different states at different voltages, and therefore rotate differently to linearly polarized light, resulting in different components in the transmission axis of the upper polarizer 194111, i.e., different brightness of the emitted light. Thus, the LCD can realize multi-gray scale picture display. If each pixel is further matched with a color filter 194114, a color image can be displayed.

With the development of society, people pay more and more attention to private information of individuals. For example, when a user uses an electronic apparatus using the LCD1941 described above, private contents are involved in contents displayed on a display on the electronic apparatus, and the user wants the private contents to be able to be peeped by others, and therefore, the user needs the electronic apparatus to have a function of controlling a viewing angle. The visual angle may be understood as an angle at which a user can clearly observe contents displayed on a display of the electronic device from different directions. The viewing angle may include a wide viewing angle and a narrow viewing angle, wherein the wide viewing angle may be 150 degrees (horizontal)/120 degrees (vertical) and the narrow viewing angle may be 120 degrees (horizontal)/100 degrees (vertical).

In the embodiment of the present application, the electronic device 100 is described as an example of a notebook computer.

For example, as shown in fig. 3 (a), a schematic diagram of a notebook computer 430 is shown for a user. The user 410 is the owner of the notebook computer 430, and the observer 420 is the person watching the notebook computer 430. At this time, when the user 410 uses the notebook computer 430, two windows, i.e., a window 431 and a window 432, are opened on the interface 433 of the notebook computer 430. Wherein window 431 is a bank Application (APP) window and window 432 is an entertainment APP window. Fig. 3 (b) is a schematic view of a viewing angle of the notebook computer 430. In FIG. 3 (b), θ_cThe area A1 is the area corresponding to the visible angle of the notebook computer, and the areas A2 and A3 are the areas corresponding to the non-visible angle of the notebook computer. As shown in fig. 3 (c), a wide viewing angle and a narrow viewing angle of the notebook computer 430 are illustrated.In FIG. 3 (c), θ_cmaxIs a wide viewing angle, theta, of the notebook computer 430_cminA narrow viewing angle of the notebook computer 430. As shown in fig. 3, in a window 431 displayed on an interface 433 of a notebook computer 430, private contents are displayed, which the user 410 does not want the onlooker 420 to see.

Currently, the user may control the viewing angle of the electronic device 100 by pasting the film of the louver structure on the corresponding display. For example, as shown in fig. 4, a film of a louver structure. The height of the leaves in the film is h and the width between the leaves is d. However, when the film of the blind structure is manufactured, the spacing d between the slats in the film of the blind structure and the height h of the slats are determined, the viewing angle of the film of the blind structure is θ, and the viewing angle θ is not changed any more, and thus, the film of the blind structure can only achieve adjustment of one viewing angle. For example, to prevent the observer 420 from peeping at the content of the laptop 430 related to privacy, the user 410 attaches a corresponding film of a louver structure to the display screen of the laptop 430 to control the viewing angle of the laptop 430, so that the observer 420 cannot see any content displayed on the interface of the laptop 430 at the position shown in fig. 3. Therefore, the viewing angle of the electronic device 100 cannot be flexibly controlled according to the user's needs, resulting in poor user experience.

Therefore, the present application provides a module 195 with a controllable viewing angle, wherein the module 195 with a controllable viewing angle can be disposed between the display module and the backlight module of the display screen 194, or the module 195 with a controllable viewing angle can be disposed above the display module of the display screen 194. The module 195 with the controllable visual angle can flexibly adjust the visual angle of the content partially presented or the visual angle of the content fully presented in the display interface of the display screen 194 without affecting the light transmittance of the display screen 194, so that the requirement of a user can be met, and the user experience is improved.

The view angle controllable module 195 provided in the embodiments of the present application will be described in detail below with reference to the specific drawings.

As shown in fig. 5 to 8, four structural diagrams of the view angle controllable module 195 are shown.

The view angle controllable module 195 includes an upper substrate 1951, an upper electrode layer 1952, a lens array layer 1953, a liquid layer 1954, a lower electrode layer 1955, and a lower substrate 1956. An upper electrode layer 1952 is disposed between an upper substrate 1951 and a lower substrate 1956, a lower electrode layer 1955 is disposed on a side of the lower substrate 1956 adjacent to the upper electrode layer 1952, and a lens array layer 1953 and a liquid layer 1954 are disposed in a stacked manner between the upper electrode layer 1952 and the lower electrode layer 1955 and the liquid layer 1954 and the lens array layer 1953.

In one implementation, the lens array layer 1953 described above is disposed above a liquid layer 1954. For example, the view angle controllable module 195 shown in fig. 5 and 7 includes, from top to bottom, an upper substrate 1951, an upper electrode layer 1952, a lens array layer 1953, a liquid layer 1954, a lower electrode layer 1955, and a lower substrate 1956.

In another implementable manner, the lens array layer 1953 described above is disposed below the liquid layer 1954. For example, as shown in fig. 6 and 8, the view controllable module 195 sequentially includes, from top to bottom, a lower substrate 1956, a lower electrode layer 1955, a liquid layer 1954, a lens array layer 1953, an upper electrode layer 1952, and an upper substrate 1951.

The upper substrate 1951 and the lower substrate 1956 serve as a support and protection function, improving the reliability of the view angle controllable module 195.

The plurality of lenses of the lens array layer 1953 correspond to the plurality of display units included in the display screen 194 one to one. The display unit of the display screen 194 may be understood as a pixel unit of the display screen 194. The one-to-one correspondence between the plurality of lenses of the lens array layer 1953 and the plurality of display units included in the display screen 194 can be understood as one lens corresponding to one display unit; alternatively, the one-to-one correspondence between the lenses of the lens array layer 1953 and the display units included in the display screen 194 can also be understood as one lens corresponding to a plurality of display units; alternatively, the one-to-one correspondence of the plurality of lenses of the lens array layer 1953 with the plurality of display units included in the display screen 194 may be understood as the correspondence of the plurality of lenses with one display unit.

In some embodiments, the lenses in the lens array layer 1953 are all convex lenses. As shown in fig. 5 and 6, the lenses in the lens array layer 1953 are convex lenses 19531. In other embodiments, the lenses in the lens array layer 1953 are all concave lenses. As shown in fig. 7 and 8, the lenses in the lens array layer 1953 are concave lenses 19532. In still other embodiments, the lenses in the lens array layer 1953 include convex lenses and concave-convex lenses, and the number of convex lenses in the lens array layer 1953 is not limited by the present application. The present application also does not limit the number of concave lenses in the lens array layer 1953.

Illustratively, the material of the lens array layer 1953 may be BK7 glass, K9 glass, SF11 glass, or the like.

The upper electrode layer 1952 includes patterned electrodes (pads) 19521, and each of the electrodes 19521 of the upper electrode layer 1952 corresponds to a lens array layer 1953 one by one, wherein the patterned electrodes can be understood as a plurality of electrodes arranged in a tiled manner. Every two adjacent electrodes in the plurality of electrodes are arranged with or without intervals. The upper electrode layer 1952 may be made of Indium Tin Oxide (ITO) lens electrode material.

In some embodiments, as shown in fig. 7 and 8, a plurality of recesses corresponding to a plurality of lenses of the lens array layer 1953 one to one are disposed on the upper electrode layer 1952, and each recess is adapted to receive liquid from the liquid layer 1954. Each recess may be formed by etching, and each recess may act as a support for the liquid layer 1954. And each recess in the lens array layer 1953 receives a portion of the liquid in the liquid layer 1954 described above.

The lower electrode layer 1955 may also include patterned electrodes, and each electrode of the lower electrode layer 1955 corresponds to each electrode 19521 of the upper electrode layer 1952. The lower electrode layer 1955 may also be made of Indium Tin Oxide (ITO) lens electrode material.

In other embodiments, as shown in fig. 5 and 6, a plurality of recesses corresponding to a plurality of lenses of the lens array layer 1953 one by one are provided on the lower electrode layer 1955, and each recess is adapted to receive liquid of the liquid layer 1954. Each of the recesses may be formed by etching and may act as a support for the liquid layer 1954. And each of the grooves of the lower electrode layer 1955 is also adapted to receive each of the protruding portions of the convex lenses 19531 of the lens array layer 1953.

The shape of the groove of the upper electrode layer 1952 is not limited by this application. The shape of the groove of the lower electrode layer 1953 is not limited by this application.

The patterned electrode may be obtained by a semiconductor photolithography process.

When the upper electrode layer 1952 and the lower electrode layer 1955 are energized, an electric field is formed between the upper electrode layer 1952 and the lower electrode layer 1955.

The refractive index of the liquid layer 1954 is changed by a voltage change. Here, the voltage refers to a voltage between the upper electrode layer 1952 and the lower electrode layer 1955. In an implementation, the voltage between the upper electrode layer 1952 and the lower electrode layer 1955 can be adjusted by fixing the voltage of the lower electrode layer 1955 to a constant value and adjusting the voltage of the upper electrode layer 1952. In another implementation, the voltage between the upper electrode layer 1952 and the lower electrode layer 1955 can be adjusted by adjusting the voltage of the upper electrode layer 1952 and the voltage of the lower electrode layer 1955, respectively, only to ensure that the voltage difference between the upper electrode layer 1952 and the lower electrode layer 1955 changes.

The liquid of the liquid layer 1954 is not limited in its kind. For example, the liquid layer 1954 may be a liquid crystal.

The present application is not limited to the relationship between the refractive index of the liquid and the voltage of the liquid layer 1954. For example, the refractive index and voltage of the liquid layer 1954 may be linear or quadratic, etc.

The components of the view-controllable module 195 may be connected by bonding or gluing, for example.

The path of the light entering and exiting the view angle controllable module 195 will be described with reference to fig. 9. Fig. 9 is a schematic diagram illustrating a partial path of light in the module 195 with controllable viewing angle. Fig. 9 (a) is a schematic partial path diagram of the light corresponding to the view angle controllable module 195 corresponding to fig. 5. Fig. 9 (b) is a schematic partial path diagram of the light corresponding to the view angle controllable module 195 corresponding to fig. 6. Fig. 9 (c) is a schematic partial path diagram of the light corresponding to the view angle controllable module 195 corresponding to fig. 7. Fig. 9 (d) is a schematic partial path diagram of the light corresponding to the view angle controllable module 195 corresponding to fig. 8.

As shown in fig. 9 (a) and 9 (c), light incident on the view angle controllable module 195 passes through the liquid layer 1954 and the lens array layer 1953, respectively, and exits the view angle controllable module 195, and light from the liquid 1954 layer is incident on the interface between the liquid layer 1954 and the lens array layer 1953 along the target direction and refracted. Since light from the layer of liquid 1954 is incident on the interface of the liquid layer 1954 and the lens array layer 1953 in a desired direction and is refracted, the light from the layer of liquid 1954 enters the lens array layer 1953 from the liquid layer 1954 and satisfies the law of refraction.

As shown in fig. 9 (b) and 9 (d), light incident on the view angle controllable module 195 passes through the lens array layer 1953 and the liquid layer 1954, respectively, and exits the view angle controllable module 195, and light from the lens array layer 1953 is incident on the interface between the lens array layer 1953 and the liquid layer 1954 along the target direction and refracted. Since light from the lens array layer 1953 is incident on the interface of the lens array layer 1953 and the liquid layer 1954 in a target direction and is refracted, the light from the lens array layer 1953 enters the liquid layer 1954 from the lens array layer 1953 and satisfies the law of refraction.

Hereinafter, the partial path of the light ray as shown in fig. 9 (a) will be described in detail as an example.

As shown in fig. 9 (a), α is an angle of an incident light ray from a normal line of the lens, i.e., an incident angle; beta is a refraction angle, namely the refraction angle of incident light refracted by the lens; the visual angle is theta; n is_LIs the refractive index of the lens, r is the radius of curvature of the lens, and f is the focal length of the lens; n is the refractive index of the liquid.

N × sin α ═ n according to the law of refraction_L×sinβThe following can be obtained:

from the sine theorem we can derive:

according to the focal length formula of the optical lens, the following can be obtained:

from equations (1), (2) and (3), we can obtain:

from the formula (4), if the material of the lenses in the lens array layer 1953 is determined as described above, that is, the refractive index n of the lenses in the lens array layer 1953_LIt is determined that, when a voltage between the upper electrode layer 1952 and the lower electrode layer 1955 is adjusted under the condition that the incident angle α is determined, the refractive index of the liquid layer 1954 is changed according to the change of the voltage between the upper electrode layer 1952 and the lower electrode layer 1955, and thus the refraction angle n of the liquid layer 1954 is changed and the corresponding viewing angle θ is also changed.

According to the formula (3), the refractive index n of the lens in the lens array layer 1953 is determined according to the material of the lens array layer 1953 and the parameters of the lens array layer 1953_LAnd the radius of curvature r of the lens is determined. When a voltage between the upper electrode layer 1952 and the lower electrode layer 1955 is adjusted, the refractive index of the liquid layer 1954 is changed according to a change in the voltage between the upper electrode layer 1952 and the lower electrode layer 1955, so that the refractive index n of the liquid layer 1954 is changed and the focal length f of the lens is changed accordingly.

Adjusted to the refractive index n of the liquid layer 1954 and the angle of refraction n of the lens_LWhen the focal length f of the lens is infinite, i.e., the lens and the liquid layer 1954 form a flat panel, the viewing angle controllable module 195 does not control the light incident on the display 194.

In one implementation, the upper lens array layer 1953 and the liquid layer 1954 are considered as a single unit, and the viewing angle controllable module 195 may include multiple lens array layers 1953 and liquid layers 1954.

The view angle controllable module 195 provided by the present application is described in detail above with reference to fig. 1 to 9. The method for controlling the viewing angle provided by the present application will be described in detail below with reference to fig. 10.

As shown in fig. 10, a method 200 for controlling a viewing angle is provided. The display method 200 includes steps 210 through 270.

Step 210, information displayed on a first interface of the electronic device is acquired, and a visual angle of the first interface is a first visual angle.

The first interface is a display interface of the electronic device. For example, as shown in fig. 4 (a), the first interface is an interface 433 of the notebook computer 430.

In some embodiments, the display interface of the electronic device may include one or more icons of APPs. For example, the display interface of the electronic device may be a desktop of the electronic device. In other embodiments, the display interface of the electronic device may include one or more windows. Wherein a window may be understood as a window of an opened certain APP. In still other embodiments, the display interface of the electronic device may include one or more icons of APPs, and one or more windows.

The above-mentioned viewing angle of the first interface is the first viewing angle, which can be understood as that the user can clearly view all the contents displayed on the first interface of the electronic device within the first viewing angle.

The first viewing angle may be a default viewing angle of the display of the electronic device. For example, in the case that the electronic device is a mobile phone, the first viewing angle may be 130 degrees. For another example, in a case where the electronic device is a notebook computer, the first viewing angle may be 140 degrees.

Step 220 identifies the type of information displayed on the first interface.

In some embodiments, the type of information displayed on the first interface may include a privacy type. In other embodiments, the type of information displayed on the first interface includes a non-private type. In still other embodiments, the types of information displayed on the first interface include a private type and a non-private type.

Here, the information of the privacy type may be understood as that the information is private to the user and not shareable with others. Non-private types of information may be understood as information that is shareable to the user with others.

The privacy type information may be system-defined or user-defined by the electronic device.

Illustratively, the privacy information may include at least one of: APP related to privacy information, keywords related to privacy information and customized privacy information.

Illustratively, the APP related to the private information may be bank software, stock software, fund software, chat software, and the like.

The above-mentioned keyword related to the private information may be, for example, a telephone number, an account number, a document with a "confidential" word, or the like.

Illustratively, the customized private information may be text, pictures, videos, and the like.

Step 230, determining whether the type of the information displayed on the first interface includes information of a privacy type.

In some embodiments, the electronic device 100 may include a privacy authority controller, the privacy authority controller identifies a type of information displayed on the first interface of the electronic device 100, and in the case that the type of information displayed on the first interface includes information of a privacy type, the privacy authority controller sends a corresponding instruction to the processor. So that the processor adjusts the viewing angle of the electronic device.

In other embodiments, the processor of the electronic device 100 may identify the type of information displayed on the first interface of the electronic device 100 and adjust the viewing angle of the electronic device.

In the following embodiments of the present application, the following description is given by taking an example in which the privacy authority controller sends a corresponding instruction to the processor, so that the processor adjusts the viewing angle of the electronic device.

Optionally, in a case that the type of the information displayed on the first interface does not include the information of the privacy type, the visual angle of the display area corresponding to the first interface is adjusted to be larger or not adjusted.

In the event that the type of information displayed on the first interface includes information of a privacy type, step 240 is performed.

And step 240, adjusting the visual angle of the first display area to be smaller, wherein the information displayed in the first display area relates to information of privacy type.

In some embodiments, the first display area may be a display area corresponding to the first interface. For example, as shown in fig. 3 (a), the first display region is a display region corresponding to the interface 433 of the notebook computer 430.

Specifically, the electronic device may include a privacy authority controller, where the privacy authority controller identifies a type of information displayed on the first interface of the electronic device 100, and when the type of information displayed on the first interface includes information of a privacy type, the privacy authority controller sends a first instruction to the processor, where the first instruction indicates to reduce a visible angle of a display area corresponding to the first interface, so that the processor reduces the visible angle of the display area corresponding to the first interface by adjusting a voltage between an upper electrode layer and a lower electrode layer of the module 195 with a controllable viewing angle.

Fig. 11 is a schematic diagram illustrating an example of a change in a viewing angle of a notebook computer 430 according to an embodiment of the present disclosure. The notebook computer 430 is the electronic device involved in the method 200, the interface 433 of the notebook computer 430 is the first interface involved in the method 200, and the display area corresponding to the interface 433 of the notebook computer 430 is the first display area involved in the method 200.

As shown in fig. 11 (a), the user can clearly see the entire contents displayed in the display area corresponding to the interface 433 of the notebook computer 430 within the viewing angle of 140 °, that is, within the area a 1. The a1 region is understood to be a spatial region, i.e. the projection of the a1 region along a direction perpendicular to the z axis is within 140 °. At this time, two

windows

431 and 432 are opened on the interface 433 of the notebook computer 430. Where window 431 is a bank APP window and window 432 is an entertainment APP window. The privacy authority controller of the notebook computer 430 recognizes that the content displayed in the window 431 on the interface 433 of the notebook computer 430 relates to information of privacy type, and sends a first instruction to the processor of the notebook computer 430, where the first instruction instructs to decrease the viewing angle of the display area corresponding to the interface 433 of the notebook computer 430, for example, the viewing angle of the display area corresponding to the interface 433 of the notebook computer 430 may be adjusted from 140 ° to 90 °.

The display area corresponding to the interface 433 can be calculated according to the above formulas (1) and (4), and each parameter is shown in table 1 before and after the adjustment of the visual angle.

TABLE 1

Theta at the interface 433	n_L	α	β	n
					140°	1.5	85°	3.239	0.0851
90°	1.5	85°	16.8	0.435

For example, as shown in fig. 11 (c), which is a schematic diagram of partial paths of light rays in the module 195 with controllable viewing angle of the notebook computer 430 before and after the notebook computer 430 is adjusted with the viewing angle. Specifically, the processor of the notebook computer 430 adjusts the voltage between the upper electrode layer 1952 and the lower electrode layer 1955 in the view angle controllable module 195 of the notebook computer 430, so that the refractive index n of the liquid layer 1954 is adjusted from 0.0851 to 0.435, and at this time, as shown in fig. 11 (b), the visible angle of the display area corresponding to the interface 433 of the notebook computer 430 is adjusted from 140 ° to 90 °. At this time, the user is only at l₁And l₂The included angle (90 °) between them forms a space region, and the contents displayed on the interface 433 of the notebook computer 430 can be seen.

In other embodiments, the first display area is a display area corresponding to a window on the first interface that relates to privacy-type information. For example, as shown in (a) of fig. 3, a window 431 opened by a bank APP and a window 432 opened by an entertainment APP are included on an interface 433 of a notebook computer 430, and since contents displayed by the window 431 relate to information of a privacy type, the first display area is a display area corresponding to the window 431 in the interface 433.

Specifically, the privacy authority controller identifies the type of information displayed on the first interface of the electronic device 100, and in a case that the type of information displayed on the first interface includes the information of the privacy type, the privacy authority controller sends a second instruction to the processor, where the second instruction instructs to reduce the visible angle of the display area corresponding to the window of the information related to the privacy type, and the processor determines the display area corresponding to the window of the information related to the privacy type according to the position of the window of the information related to the privacy type, and reduces the visible angle of the display area corresponding to the window of the information related to the privacy type on the first interface by adjusting the voltage between the upper electrode layer and the lower electrode layer corresponding to the window of the information related to the privacy type in the upper electrode layer and the lower electrode layer of the module 195 with the controllable viewing angle.

In one embodiment, determining the display area corresponding to the window of the information related to the privacy type according to the position of the window of the information related to the privacy type may be determining the display area corresponding to the window of the information related to the privacy type according to first vertex coordinates of the window of the information related to the privacy type, a length of the window of the information related to the privacy type, and a width of the window of the information related to the privacy type. Wherein the first vertex may be any one of the vertices of the window relating to the privacy type of information. In another embodiment, determining the display area corresponding to the window of the information related to the privacy type according to the position of the window of the information related to the privacy type may be determining the display area corresponding to the window of the information related to the privacy type according to coordinates of four vertices of the window of the information related to the privacy type. Wherein the coordinates may be coordinates on a display interface of the electronic device.

Optionally, the visual angle of the second display area in the first interface can be adjusted to be larger. Wherein the second display area is a display area on the first interface except for a display area corresponding to a window relating to the privacy type information. For example, as illustrated in (a) of fig. 3, the second display region is a display region of the interface 433 other than the display region corresponding to the window 431.

Fig. 12 is a schematic view illustrating a change in a viewing angle of another notebook computer 430 according to an embodiment of the present disclosure. The notebook computer 430 is the electronic device involved in the method 200, the interface 433 of the notebook computer 430 is the first interface involved in the method 200, and the display area corresponding to the window 431 in the interface 433 of the notebook computer 430 is the first display area involved in the method 200.

As shown in fig. 12 (a), the user can clearly see the entire contents displayed in the display area corresponding to the interface 433 of the notebook computer 430 within the viewing angle of 140 °, that is, within the area a 1. At this time, a bank APP window 431 and an entertainment APP window 432 are opened on the interface 433 of the notebook computer 430. The privacy authority controller of the notebook computer 430 recognizes that the content displayed by the window 431 on the interface 433 of the notebook computer 430 relates to information of privacy type, and sends a second instruction to the processor of the notebook computer 430, wherein the second instruction instructs to decrease the visible angle of the display area corresponding to the window 431 in the interface 433 of the notebook computer 430, for example, the visible angle of the display area corresponding to the window 431 in the interface 433 of the notebook computer 430 may be adjusted from 140 ° to 90 °.

For example, as shown in fig. 12 (c), it is a schematic diagram of a local path of light in the display area corresponding to the window 431 in the interface 433 of the notebook computer 430 and the corresponding view angle controllable module 195 before and after the notebook computer 430 is adjusted in the view angle. Specifically, the processor of the notebook computer 430 determines a display area corresponding to the window 431 according to the position of the window 431, and adjusts the voltage between the upper electrode layer 1952 and the lower electrode layer 1955 of the module 195 with a controllable viewing angle of the notebook computer 430, which correspond to the display area corresponding to the window 431, such that the refractive index n of the liquid layer 1954 corresponding to the display area corresponding to the window 431 is adjusted from 0.0851 to 0.435, at which time, as shown in (b) of fig. 12, the visible angle of the display area corresponding to the window 431 in the interface 433 of the notebook computer 430 is adjusted from 140 ° to 90 °. At this time, the user is only at l₃And l₄The angle (90 deg.) between them forms a space region, the window in the interface 433 of the notebook computer 430 can be seen431 of the display.

In still other embodiments, the processor may determine the display area corresponding to the display unit of the identified information related to the privacy type as the first display area, that is, the first display area is the display area corresponding to the information related to the privacy type on the first interface, so that the processor adjusts the viewing angle of the first display area to be smaller. For example, the first interface relates to a text of a privacy type, and a display area corresponding to a display unit displaying the text is the first display area. For another example, the first interface relates to a picture of a privacy type, and a display area corresponding to a display unit displaying the picture is the first display area.

The visual angle of the area displaying the privacy type information on the interface of the electronic equipment is reduced by adjusting the voltage between the upper electrode and the lower electrode corresponding to part or all of the upper electrode layer and the lower electrode layer. For users with different viewing angles, the content displayed on the electronic equipment is different, and the user experience can be improved.

Optionally, in a case that the display screen 194 of the electronic device 100 has a touch screen function, the electronic device 100 may further adjust a visible angle of a selection area corresponding to the selection operation of the selection trajectory of the user by detecting the selection operation of the selection trajectory of the user. The selection area comprises a starting point position of the selection track and an end point position of the selection track. The selection area may be a closed area, and an area formed by the closed area may be determined as the selection area. Alternatively, the circled track may also be an unclosed track, and the electronic device fits the unclosed track to form a closed track, and determines an area formed by the fitted closed track as the circled area. Specifically, the privacy authority controller may instruct the processor to adjust a voltage between an electrode in the upper electrode layer corresponding to the circled area and an electrode in the lower electrode layer corresponding to the circled area, so as to adjust a viewing angle of the circled area.

Alternatively, the selection items corresponding to different viewing angle ranges of different application scenes may be set in an on-screen display (OSD) manner in the electronic device. The user can realize the adjustment of the visual angle of the electronic equipment by opening the corresponding option.

It should be understood that the specific examples in the embodiments of the present application are for the purpose of helping those skilled in the art to better understand the embodiments of the present application, and do not limit the scope of the embodiments of the present application.

It should also be understood that the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by the function and the inherent logic thereof, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

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 units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A view angle controllable module, comprising:

an upper electrode layer and a lower electrode layer;

a lens array layer disposed between the upper electrode layer and the lower electrode layer;

a liquid layer disposed between the lower electrode layer and the lens array layer;

the light incident to the module passes through the liquid layer and the lens array layer and exits the module, the light from the liquid layer is incident to the interface of the liquid layer and the lens array layer along the target direction and is refracted, the refractive index of the lens array layer is the target refractive index,

in a case where a voltage between the upper electrode layer and the lower electrode layer is a first voltage, a refractive index of the liquid layer is a first refractive index, the refracted light passes through the lens array layer in a first direction, the first refractive index and the target refractive index being different;

in a case where a voltage between the upper electrode layer and the lower electrode layer is a second voltage, the refractive index of the liquid layer is a second refractive index, the refracted light passes through the lens array layer in a second direction, the second voltage is different from the first voltage, the second refractive index is different from the first refractive index, the second refractive index is different from the target refractive index, and the second direction is different from the first direction.

2. The module of claim 1, wherein the bottom electrode layer comprises:

the grooves correspond to the lenses of the lens array layer one to one, and the grooves are used for accommodating the liquid layer.

3. The module of claim 2, wherein the lens array layer comprises convex lenses.

4. The module of claim 1, wherein the top electrode layer comprises:

5. The module of claim 4, wherein the lens array layer comprises concave lenses.

6. The module according to any one of claims 1 to 5, characterized in that the upper electrode layer further comprises a plurality of electrodes, the plurality of electrodes and the plurality of lenses corresponding one to one, and/or,

the lower electrode layer further comprises a plurality of electrodes, and the plurality of electrodes and the plurality of lenses are in one-to-one correspondence.

7. The die set of any one of claims 1 to 6, further comprising: an upper substrate disposed above the upper electrode layer and a lower substrate disposed below the lower electrode layer.

8. A view angle controllable module, comprising:

an upper electrode layer and a lower electrode layer;

a liquid layer disposed between the upper electrode layer and the lens array layer;

the light incident to the module passes through the lens array layer and the liquid layer and exits the module, the light from the lens array layer is incident to the interface of the lens array layer and the liquid layer along the target direction and is refracted, the refractive index of the lens array layer is the target refractive index,

in the case where the voltage between the upper electrode layer and the lower electrode layer is a third voltage, the refractive index of the liquid layer is a third refractive index, the refracted light passes through the liquid layer in a third direction, the third refractive index being different from the target refractive index;

in a case where a voltage between the upper electrode layer and the lower electrode layer is a fourth voltage, the refractive index of the liquid layer is a fourth refractive index, the refracted light passes through the liquid layer in a fourth direction, the fourth voltage is different from the third voltage, the fourth refractive index is different from the third refractive index, the fourth refractive index is different from the target refractive index, and the fourth direction is different from the third direction.

9. The module of claim 8, wherein the bottom electrode layer comprises:

10. The module of claim 9, wherein the lens array layer comprises concave lenses.

11. The module of claim 8, wherein the top electrode layer comprises:

12. The module of claim 11, wherein the lens array layer comprises convex lenses.

13. The module according to any one of claims 8 to 12, wherein the upper electrode layer further comprises a plurality of electrodes, the plurality of electrodes and the plurality of lenses corresponding one-to-one, and/or,

14. The die set of any one of claims 8 to 13, further comprising: an upper substrate disposed above the upper electrode layer and a lower substrate disposed below the lower electrode layer.

15. A display, comprising: a liquid crystal display panel and a viewing angle controllable module according to any one of claims 1 to 14,

the liquid crystal display panel comprises a display module and a backlight module, wherein the display module comprises a plurality of display units, and the display units correspond to the lenses one by one;

the module with the controllable visual angle is arranged between the display module and the backlight module, or the module with the controllable visual angle is arranged above the liquid crystal display panel, and the module with the controllable visual angle is used for adjusting the visual angle of the display.

16. An electronic device, characterized in that the electronic device comprises a view-angle controllable module according to any one of claims 1 to 14.

17. A method of controlling a viewing angle, the method being applied to an electronic device comprising the display of claim 15, the method comprising:

determining a first display area of a visual angle to be adjusted on a display interface of the electronic equipment;

adjusting a voltage between a first electrode and a second electrode corresponding to the first display area, so that a viewing angle of the first display area changes, wherein the first electrode is an electrode of the upper electrode layer, the second electrode is an electrode of the lower electrode layer, and the first electrode corresponds to the second electrode.

18. The method of claim 17, wherein determining the first display area of the display interface of the electronic device in which the visual angle is to be adjusted comprises:

identifying the type of information displayed on a display interface of the electronic equipment, wherein the type of the displayed information comprises a privacy type and a non-privacy type;

determining a display area corresponding to the display interface of the electronic device as the first display area when the type of the information displayed on the display interface of the electronic device includes information of a privacy type.

19. The method of claim 17, wherein determining the first display area of the display interface of the electronic device in which the visual angle is to be adjusted comprises:

identifying a type of information displayed on a display interface of the electronic equipment, wherein the display interface of the electronic equipment comprises at least one window, and the type of the displayed information comprises a privacy type and a non-privacy type;

and determining a display area corresponding to a window related to the information of the privacy type on the display interface of the electronic equipment as the first display area when the type of the information displayed on the display interface of the electronic equipment comprises the information of the privacy type.

20. The method of claim 19, wherein determining a display area corresponding to a window of information related to a privacy type on a display interface of the electronic device as the first display area comprises:

and determining a display area corresponding to the window of the information related to the privacy type according to the position of the window of the information related to the privacy type.

21. The method of claim 17, wherein determining the first display area of the display interface of the electronic device in which the visual angle is to be adjusted comprises:

detecting the selection operation of the selection track of the user;

and determining a selection area corresponding to the selection operation as a first display area.

22. The method according to any one of claims 19 to 21, wherein in the case where the type of information displayed on the display interface of the electronic device comprises a privacy type of information, the method further comprises:

adjusting a voltage between a third electrode and a fourth electrode corresponding to a second display area, so that a visual angle of the second display area changes, where the third electrode is an electrode of the upper electrode layer, the fourth electrode is an electrode of the lower electrode layer, the third electrode corresponds to the fourth electrode, and the second display area is a display area on a display interface of the electronic device except for the first display area.

23. The method according to any of claims 18 to 22, wherein the information of the privacy type comprises information relating to a privacy application, information relating to a privacy keyword, information relating to a privacy text, information relating to a privacy picture and/or information relating to a privacy video.

24. An electronic device, comprising: the display of claim 15; one or more processors; a memory; a plurality of application programs; and one or more programs, wherein the one or more programs are stored in the memory, which when executed by the processor, cause the electronic device to perform the steps of:

25. The electronic device of claim 24, wherein the one or more programs, when executed by the processor, cause the electronic device to perform the steps of:

26. The electronic device of claim 24, wherein the one or more programs, when executed by the processor, cause the electronic device to perform the steps of:

27. The electronic device of claim 26, wherein the one or more programs, when executed by the processor, cause the electronic device to perform the steps of:

28. The electronic device of claim 24, wherein the one or more programs, when executed by the processor, cause the electronic device to perform the steps of:

detecting the selection operation of the selection track of the user;

29. The electronic device of any of claims 26-28, wherein the one or more programs, when executed by the processor, cause the electronic device to perform the steps of:

30. Electronic device according to any of claims 24-29, wherein the information of the privacy type comprises information related to private applications, information related to private keywords, information related to private text, information related to private pictures and/or information related to private videos.

31. A computer readable storage medium comprising computer instructions which, when run on an electronic device, cause the electronic device to perform a method of controlling a viewing angle as claimed in any one of claims 17 to 23.

32. A computer program product, which, when run on a computer, causes the computer to perform a method of controlling a viewing angle as claimed in any one of claims 17 to 23.