Film testing methods, electronic equipment, devices and media

Abstract

This disclosure relates to a screen protector detection method, electronic device, apparatus, and medium. The electronic device includes: a waveplate disposed below the screen structure layer of the electronic device, configured to phase-delay received circularly polarized light to generate linearly polarized light in a specified direction; a polarization component disposed below the waveplate, configured to allow the linearly polarized light in the specified direction to pass through; and an optical sensor component disposed below the polarization component. The optical sensor component detects the linearly polarized light passing through the specified direction from the polarization component, thereby identifying the presence of a screen protector on the screen of the electronic device and achieving screen protector identification.

Description

Technical Field

[0001] This disclosure relates to the field of display panel technology, and in particular to a film-attachment detection method, electronic device, apparatus, and medium. Background Technology

[0002] With the development of the electronics industry, various sensors are implemented in electronic devices or systems to provide certain desired functions in order to offer a better user experience. For reasons such as saving space and increasing screen-to-body ratio, many electronic devices place sensors under the screen.

[0003] However, placing the sensor under the screen can affect its accuracy. As users have increasingly higher performance requirements for electronic devices, improving the performance of under-screen sensors has become an urgent problem to be solved. Summary of the Invention

[0004] To overcome the problems existing in related technologies, this disclosure provides a film-applied detection method, electronic device, apparatus, and medium.

[0005] According to a first aspect of the present disclosure, an electronic device is provided, the electronic device comprising: a waveplate disposed below a screen structure layer of the electronic device, the waveplate being configured to phase delay received circularly polarized light to generate linearly polarized light in a specified direction; a polarization component disposed below the waveplate, the polarization component being configured to transmit the linearly polarized light in the specified direction; and an optical sensor component disposed below the polarization component.

[0006] Optionally, the waveplate is configured to phase delay the received circularly polarized light to generate linearly polarized light in a first direction and linearly polarized light in a second direction. The polarization component includes: a first polarizer disposed below the waveplate; and a second polarizer disposed below the waveplate, wherein the first polarizer is a polarizer in the first direction and the second polarizer is a polarizer in the second direction, and the first direction and the second direction are different.

[0007] Optionally, the optical sensor assembly includes: a first optical sensor disposed below the first polarizer; and a second optical sensor disposed below the second polarizer.

[0008] Optionally, the electronic device further includes a polarizing film disposed above the screen light-emitting layer of the electronic device, wherein the polarization direction of the polarizing film is either the first direction or the second direction.

[0009] Optionally, the optical sensor component is an ambient light sensor in the under-display fingerprint recognition module.

[0010] Optionally, the waveplate is attached to the back side of the screen structure layer.

[0011] Optionally, the polarization component is attached to the back side of the waveplate.

[0012] Optionally, the optical sensor assembly is attached to the back of the polarization assembly.

[0013] Optionally, the polarization component is attached to the front side of the optical sensor component.

[0014] Optionally, the optical sensor assembly is disposed in the lower layer of the screen structure layer.

[0015] According to a second aspect of the present disclosure, a screen protector detection method is provided, applied to an electronic device according to any one of the first aspects above. The method includes: turning on the screen; acquiring an optical signal reported by an optical sensor component; and confirming that a screen protector is present on the screen of the electronic device when the optical signal indicates that the light intensity reaches a specified threshold.

[0016] Optionally, lighting up the screen includes lighting up a designated area of ​​the screen, the designated area being located above the optical sensor assembly.

[0017] According to a second aspect of the present disclosure, an apparatus is provided, characterized in that it includes: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to: implement the film detection method provided in the second aspect of the present disclosure.

[0018] According to a second aspect of the present disclosure, a computer-readable storage medium is provided, having stored thereon computer program instructions that, when executed by a processor, implement the film detection method provided in the second aspect of the present disclosure.

[0019] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: when the optical sensor component of the electronic device detects that the polarization component has linearly polarized light passing through the second direction, it identifies that the screen of the electronic device has a film.

[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0022] Figure 1 This is a block diagram illustrating an electronic device according to an exemplary embodiment;

[0023] Figure 2 This is a block diagram illustrating a detection component according to an exemplary embodiment;

[0024] Figure 3 This is an optical path diagram showing the presence of a film, according to an exemplary embodiment;

[0025] Figure 4 This is an optical path diagram illustrating the absence of a film, according to an exemplary embodiment.

[0026] Figure 5 This is a flowchart illustrating a film-applied detection method according to an exemplary embodiment;

[0027] Figure 6 This is a block diagram (general structure of a mobile terminal) illustrating an apparatus according to an exemplary embodiment. Detailed Implementation

[0028] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0029] It should be noted that all actions involving the acquisition of signals, information, or data in this application are carried out in compliance with the relevant data protection laws and policies of the country where the application is located, and with the authorization granted by the owner of the relevant device.

[0030] Currently, users apply a protective film to the screen when using electronic devices such as mobile phones and tablets. In fact, most terminal manufacturers also include a protective screen protector with the device screen. Although the screen protector can protect the screen from accidental breakage and scratches, it can affect the light entering and passing through the film material, which to some extent affects the screen display effect and the performance of the under-display optical sensor.

[0031] Knowing in advance the presence of a screen protector can improve the performance of electronic devices, such as reducing the impact of the protector on the under-display optical sensor to a controllable level. Based on this, this application proposes an electronic device that utilizes the characteristic that a screen protector affects a small portion of unidirectional linearly polarized light, converting it into circularly polarized light. The circularly polarized light is then passed through a waveplate to generate unidirectional linearly polarized light in a specified direction. When the optical sensor component detects that the polarization component is passing through linearly polarized light in the specified direction, it confirms the presence of a screen protector on the electronic device's screen, thereby achieving the function of identifying whether a screen protector is present.

[0032] Figure 1 This is a block diagram illustrating an electronic device 100 according to an exemplary embodiment, such as... Figure 1 As shown, the electronic device includes a display module 110 and a detection component 120. The display module 110 refers to a component used to display images, such as an OLED display with luminescent pixels that does not use backlighting. The detection component 110 is used to detect whether a film is applied to the display module 110. The electronic device can be a portable or mobile computing device such as a laptop, tablet, smartphone, and gaming device, as well as other large electronic devices such as electronic databases, automobiles, and bank ATMs.

[0033] Figure 2 An example of the detection component 120 is shown, comprising: a waveplate 210 disposed below the screen structure layer of the electronic device, the waveplate 210 being configured to phase delay received circularly polarized light to generate linearly polarized light in a specified direction; a polarization component 220 disposed below the waveplate, the polarization component being configured to transmit the linearly polarized light in the specified direction; and an optical sensor component 230 disposed below the polarization component.

[0034] In this example, the display module of the electronic device uses an OLED display, including but not limited to passive matrix OLED (PMOLED), active matrix OLED (AMOLED), transparent OLED, shared cathode OLED, shared anode OLED, white OLED (WOLED), and tri-color OLED. For ease of illustration, this application simplifies the OLED display to a combination of screen light-emitting layer 240 and screen structural layer 250, which is merely an illustration. In other embodiments of this application, the display module may also use other types of display screens, and this application does not impose any limitations on this.

[0035] The screen is turned on, causing the OLED display to emit light. When the OLED display emits light, the emitted light is linearly polarized light. For example, when the display has a built-in polarizing film, the polarizing film is usually placed above the screen's light-emitting layer of the electronic device, and the emitted light is linearly polarized light with a unidirectional polarization state. Optionally, only the OLED display above the optical sensor assembly 230 can be turned on.

[0036] Optionally, the optical sensor component is an ambient light sensor in the under-display fingerprint recognition module.

[0037] The optical sensor component can be a new sensor or an existing sensor; for example, the ambient light sensor used in under-display fingerprint sensors can be used as a sensor component. Detection can be achieved by illuminating only a designated area of ​​the optical sensor component or by illuminating the entire screen.

[0038] Polarized light is characterized by the asymmetry between its vibration direction and propagation direction. This asymmetry is the most obvious distinguishing feature of transverse waves from longitudinal waves; only transverse waves exhibit polarization, and light is an electromagnetic wave, which is a transverse wave. The plane formed by the vibration direction and the direction of light wave propagation is called the plane of vibration. Light whose plane of vibration is limited to a fixed direction is called plane-polarized light or linearly polarized light. Based on its properties, polarized light can be further classified into plane-polarized light (linearly polarized light), circularly polarized light, elliptically polarized light, and partially polarized light.

[0039] Because of the organic molecular arrangement characteristics of the film material and adhesive, the screen protector applied by the user can affect a small portion of unidirectional linearly polarized light, changing its polarization characteristics into circularly polarized light. Therefore, the unidirectional linearly polarized light that passes through the screen protector will be transformed into linearly polarized light with a small portion of circularly polarized light.

[0040] like Figure 3 As shown, Figure 3 The optical path diagram of the detection component 120 during detection is shown. The linearly polarized light 310 emitted by the OLED display is X-direction linearly polarized light, assuming the polarization direction of the polarizing film is known, such as the X direction. After passing through the user film 320, the X-direction linearly polarized light is decomposed into two polarization states: X-direction linearly polarized light 330 and circularly polarized light 340. When the light rays 330 and 340 encounter the user's finger 350, after passing through the finger skin, part of the light becomes reflected light and changes direction to become X-direction linearly polarized light 360 and circularly polarized light 370, which re-enter the screen. The light rays 360 and 370 re-enter the screen. After the film is applied, 360 can still generate some circularly polarized light, and the polarization state of 370 is more discrete and closer to the ideal circularly polarized light after the film is applied.

[0041] The waveplate 210 is disposed below the OLED display screen as described above. The waveplate is used for phase delay. The waveplate can be a phase delay plate, etc. The phase delay plate is made of birefringent material and can adjust the polarization state of the beam, such as a half-wave plate, a quarter-wave plate, etc. The phase delay plate has the characteristic of converting a group of circularly polarized light into linearly polarized light with two polarization directions after passing through it.

[0042] The reflected light passes through the screen and then through the waveplate 210. The waveplate 210 does not affect the unidirectional linearly polarized light, so the light ray 360 continues to propagate in its polarization state. However, the waveplate 210 affects the circularly polarized light 370. After phase delay, the circularly polarized light becomes two sets of linearly polarized light with a certain angle between them: X-axis linearly polarized light 380 and Y-axis linearly polarized light 390. The better the dispersion effect of the film, the more balanced the polarization state of the circularly polarized light, and the better the orthogonality of the resulting XY-phase linearly polarized light. The Y-axis is the designated direction that is orthogonal to the X-axis.

[0043] A polarization component 220 is disposed below the waveplate 210. The polarization component is configured to transmit linearly polarized light in the specified direction. An optical sensor component 230 is disposed below the polarization component.

[0044] A polarizer (or polarizer) is an optical filter that allows light waves of a specific polarization to pass through while blocking light waves of other polarizations.

[0045] The light emitted from the screen is reflected by the finger and then enters the screen again, where the polarization state of the light is adjusted, changing from the previous unidirectional X-axis polarization state to a composite light containing both X-axis and Y-axis polarization states.

[0046] Due to the characteristics of polarizers, only X-axis linearly polarized light is transmitted in the X direction, and only Y-axis linearly polarized light is transmitted in the Y direction. In other words, the polarization component blocks X-axis linearly polarized light and only transmits Y-axis linearly polarized light. An optical sensor assembly 230 positioned below the polarization component can detect the light.

[0047] When the optical sensor assembly 230 detects light exceeding the detection threshold, it indicates that an adjustment of the light polarization state has occurred, signifying the presence of a film on the display module.

[0048] Optionally, the electronic device further includes a polarizing film disposed above the screen light-emitting layer of the electronic device, wherein the polarization direction of the polarizing film is either the first direction or the second direction.

[0049] Optionally, the waveplate is configured to phase delay the received circularly polarized light to generate linearly polarized light in a first direction and linearly polarized light in a second direction. The polarization component includes: a first polarizer disposed below the waveplate; and a second polarizer disposed below the waveplate, wherein the first polarizer is a polarizer in the first direction and the second polarizer is a polarizer in the second direction, and the first direction and the second direction are different.

[0050] Furthermore, the optical sensor assembly includes: a first optical sensor disposed below the first polarizer; and a second optical sensor disposed below the second polarizer.

[0051] When the polarization direction of the polarizing film disposed above the screen light-emitting layer of the display module is unknown, the polarizing film of the display module in the prior art generally has two polarization states, such as X-axis or Y-axis.

[0052] Two polarizers can be set to represent possible polarization states, such as two polarizers for the X and Y directions.

[0053] Since the two sets of orthogonal polarizers are respectively set on the two optical sensors, these composite rays need to pass through the X and Y directions, respectively, and the two unidirectional polarizers.

[0054] Correspondingly, if two optical sensors are set under the X-axis and Y-axis unidirectional polarizers, the composite light rays need to pass through the X-axis and Y-axis unidirectional polarizers to reach the two optical sensors.

[0055] Due to the characteristics of polarizers—that only X-axis linearly polarized light passes through in the X direction and only Y-axis linearly polarized light passes through in the Y direction—if both optical sensors below can receive light, and the intensity of the received light reaches the detection threshold, it indicates that both the X-axis and Y-axis unidirectional polarizers can transmit light, resulting in an adjustment of the light polarization state, suggesting the presence of a film on the display module.

[0056] If only one optical sensor can receive light, it means that no adjustment of the light polarization state has occurred, indicating that there is no film on the display module.

[0057] For example, assuming the two optical sensors below are a first optical sensor and a second optical sensor, when the first and second optical sensors detect a light signal exceeding a threshold, they report to the digital processor of the electronic device, such as a CPU, for processing. The digital processor determines whether a film is present on the display module, thus realizing the detection of the film. In another embodiment of this application, the detection component may also have a built-in processor to control the first and second optical sensors and determine whether a film is present, and report the determination result to the CPU.

[0058] When a screen protector is detected, the electronic device can make adjustments to improve its performance. For example, when generating an optical fingerprint, an ambient light sensor and an ambient temperature sensor are used. The use of a screen protector may affect the performance of the ambient light sensor and the ambient temperature sensor, thus affecting the acquired optical fingerprint. When a screen protector is detected, the electronic device can adjust the parameters to correct the deviation and obtain a more accurate optical fingerprint.

[0059] In contrast, this application shows an optical path diagram when there is no screen protector on the display module. Since there is no screen protector, the X-axis linearly polarized light 410 transmitted from the screen will not produce any circularly polarized light, and the reflection from the finger and the waveplate will not affect the polarization direction of the linearly polarized light.

[0060] Therefore, the light emitted from the screen, after passing through various waveplates and being isolated by polarizers, still only exhibits X-axis linear polarization, lacking Y-axis linear polarization. Consequently, no light passes through the Y-axis polarizer of the polarization component, the optical sensor receives no signal, or the detected light intensity does not reach the detection threshold. This situation indicates that there is no protective film on the display module.

[0061] In the aforementioned electronic device, the screen protector affects the conversion of a small portion of unidirectional linearly polarized light into circularly polarized light. The received circularly polarized light is phase-delayed by a waveplate to generate unidirectional linearly polarized light in a specified direction. When the optical sensor component detects that the polarization component is passing through linearly polarized light in the specified direction, it confirms that the screen of the electronic device has a screen protector, thereby realizing the function of identifying whether a screen protector is applied.

[0062] Optionally, the waveplate is attached to the back side of the screen structure layer.

[0063] Optionally, the polarization component is attached to the back of the waveplate.

[0064] Optionally, the optical sensor assembly is attached to the back of the polarization assembly.

[0065] In one embodiment of this application, all or part of the detection component is integrated into the display module, wherein the integration maintains the display operation and function of the display module without interference, while providing optical sensing operation and function to enhance the overall function, device integration and user experience of electronic devices such as smartphones or other mobile / wearable devices or other forms of electronic devices or systems.

[0066] The integration method may involve attaching a waveplate to the back side of the screen structure layer in the display module, where the back side refers to the side of the screen structure layer facing away from the user; attaching a polarization component to the back side of the waveplate, where the back side refers to the side of the waveplate facing away from the user; and finally attaching optical sensor components to the back side of the polarization component, where the back side refers to the side of the polarization component facing away from the user.

[0067] Optionally, the polarization component is attached to the front side of the optical sensor component.

[0068] Optionally, the optical sensor assembly is disposed in the lower layer of the screen structure layer.

[0069] In one embodiment of this application, a polarization component is attached to a corresponding sensor. For example, a first polarizer is attached to the front side of the first optical sensor and a second polarizer is attached to the front side of the second optical sensor. The front side refers to the side of the optical sensor facing the user.

[0070] The sensor with the polarizer attached is placed on the layer below the screen structure layer, such as on the substrate of an electronic device or on the layer below the screen structure layer in a display module.

[0071] Figure 5 This is a flowchart illustrating a film-applied detection method according to an exemplary embodiment. Figure 5As shown, the method includes:

[0072] Step S501: Turn on the screen;

[0073] Optionally, a designated area of ​​the screen is illuminated, the designated area being located above the optical sensor assembly.

[0074] Step S502: Obtain the optical signal reported by the optical sensor component. If the optical signal indicates that the light intensity has reached a specified threshold, confirm that the screen of the electronic device has a film.

[0075] When an OLED display is lit, the linearly polarized light emitted by the OLED display produces an optical path pattern as follows: Figure 3 As shown, assuming the linearly polarized light emitted by the LED display screen is X-direction linearly polarized light 310, the X-direction linearly polarized light is decomposed into two polarization states after passing through the user's film 320: X-direction linearly polarized light 330 and circularly polarized light 340. When light rays 330 and 340 encounter the user's finger 350, after passing through the finger's skin, some of the light becomes reflected light and changes direction, becoming X-direction linearly polarized light 360 and circularly polarized light 370, which re-enter the screen. Light rays 360 and 370 re-enter the screen. After the film is applied, 360 can still generate some circularly polarized light, and the polarization state of 370 is more discrete and closer to ideal circularly polarized light after the film is applied.

[0076] The reflected light passes through the screen and then through the waveplate 210. The waveplate 210 does not affect the unidirectional linearly polarized light, so the light 360 continues to propagate in a polarized state. However, the waveplate 210 affects the circularly polarized light 370. After phase delay, the circularly polarized light becomes two sets of linearly polarized light with a certain angle between them: X-axis linearly polarized light 380 and Y-axis linearly polarized light 390. The better the dispersion effect of the film, the more balanced the polarization state of the circularly polarized light, and the better the orthogonality of the XY phase linearly polarized light produced.

[0077] The light emitted from the screen is reflected by the finger and then enters the screen again, where the polarization state of the light is adjusted, changing from the previous unidirectional X-axis polarization state to a composite light containing both X-axis and Y-axis polarization states.

[0078] Since the two sets of orthogonal polarizers are respectively set on the two optical sensors, these composite rays need to pass through the first polarizer 220 and the second polarizer 230, two unidirectional polarizers, to reach the two optical sensors.

[0079] Due to the characteristics of the polarizer, namely that only X-axis linearly polarized light is transmitted in the X direction and only Y-axis linearly polarized light is transmitted in the Y direction, both the first optical sensor 240 and the second optical sensor 250 can receive light, and the intensity of the received light can reach the detection threshold. In step S502, if the light intensity detected by the first optical sensor and the second optical sensor reaches the specified threshold, it is confirmed that the screen of the electronic device has a film.

[0080] Therefore, since both the first optical sensor 240 and the second optical sensor 250 can receive light, and the intensity of the received light can reach the detection threshold, it indicates that there is a film on the display module.

[0081] When there is no screen protector, the X-axis linearly polarized light 410 transmitted through the screen will not produce any circularly polarized light due to the absence of a user-applied screen protector. Furthermore, finger reflections and waveplates will not affect the polarization direction of the linearly polarized light.

[0082] At this point, only the X-axis polarizer, which matches the screen's polarization state, allows light to pass through; the Y-axis polarizer allows no light to pass through. Therefore, only the first optical sensor 240 has an optical signal, while the second optical sensor 250 has no signal, or the detected light intensity does not reach the detection threshold. This situation indicates that there is no protective film on the display module.

[0083] This disclosure also provides a computer-readable storage medium having stored thereon computer program instructions that, when executed by a processor, implement the steps of the film-attachment detection method provided in this disclosure.

[0084] Figure 6 This is a block diagram illustrating an apparatus 600 for implementing the film detection method provided in this disclosure during execution, according to an exemplary embodiment. For example, apparatus 600 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0085] Reference Figure 6 The device 600 may include one or more of the following components: a processing component 602, a memory 604, a power supply component 606, a multimedia component 608, an audio component 610, an input / output interface 612, a sensor component 614, and a communication component 616.

[0086] Processing component 602 typically controls the overall operation of device 600, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 602 may include one or more processors 620 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 602 may include one or more modules to facilitate interaction between processing component 602 and other components. For example, processing component 602 may include a multimedia module to facilitate interaction between multimedia component 608 and processing component 602.

[0087] Memory 604 is configured to store various types of data to support the operation of device 600. Examples of such data include instructions for any application or method operating on device 600, contact data, phonebook data, messages, pictures, videos, etc. Memory 604 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0088] Power supply component 606 provides power to the various components of device 600. Power supply component 606 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 600.

[0089] Multimedia component 608 includes a screen that provides an output interface between the device 600 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 608 includes a front-facing camera and / or a rear-facing camera. When the device 600 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0090] Audio component 610 is configured to output and / or input audio signals. For example, audio component 610 includes a microphone (MIC) configured to receive external audio signals when device 600 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 604 or transmitted via communication component 616. In some embodiments, audio component 610 also includes a speaker for outputting audio signals.

[0091] Input / output interface 612 provides an interface between processing component 602 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, start buttons, and lock buttons.

[0092] Sensor assembly 614 includes one or more sensors for providing status assessments of various aspects of device 600. For example, sensor assembly 614 may detect the on / off state of device 600, the relative positioning of components such as the display and keypad of device 600, changes in the position of device 600 or a component of device 600, the presence or absence of user contact with device 600, the orientation or acceleration / deceleration of device 600, and temperature changes of device 600. Sensor assembly 614 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 614 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 614 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0093] Communication component 616 is configured to facilitate wired or wireless communication between device 600 and other devices. Device 600 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 616 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 616 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0094] In an exemplary embodiment, the apparatus 600 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0095] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 604 including instructions, which can be executed by a processor 620 of the memory 604 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0096] In another exemplary embodiment, a computer program product is also provided, the computer program product comprising a computer program executable by a programmable device, the computer program having a code portion for performing the above-described film detection method when executed by the programmable device.

[0097] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of this disclosure. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0098] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. An electronic device, characterized in that, The electronic device includes: A waveplate is disposed below the screen structure layer of the electronic device. The waveplate is configured to delay the phase of the received circularly polarized light whose polarization state has been converted due to the screen film to generate linearly polarized light in a specified direction. A polarization component is disposed below the waveplate, and the polarization component is configured to transmit linearly polarized light in the specified direction; An optical sensor assembly is disposed below the polarization assembly.

2. The electronic device according to claim 1, characterized in that, The waveplate is configured to phase-delay the received circularly polarized light to generate linearly polarized light in a first direction and linearly polarized light in a second direction. The polarization component includes: A first polarizer is disposed below the waveplate; A second polarizer is disposed below the waveplate. The first polarizer is a polarizer in the first direction and the second polarizer is a polarizer in the second direction, wherein the first direction and the second direction are different.

3. The electronic device according to claim 2, characterized in that, The optical sensor assembly includes: The first optical sensor is disposed below the first polarizer; The second optical sensor is positioned below the second polarizer.

4. The electronic device according to claim 2, characterized in that, The electronic device also includes: A polarizing film is disposed above the screen light-emitting layer of the electronic device, and the polarization direction of the polarizing film is either the first direction or the second direction.

5. The electronic device according to claim 2, characterized in that, The optical sensor component is the ambient light sensor in the under-display fingerprint recognition module.

6. The electronic device according to claim 1, characterized in that, The waveplate is attached to the back of the screen structure layer.

7. The electronic device according to claim 1, characterized in that, The polarization component is attached to the back of the waveplate.

8. The electronic device according to claim 1, characterized in that, The optical sensor assembly is attached to the back of the polarization assembly.

9. The electronic device according to claim 1, characterized in that, The polarization component is attached to the front side of the optical sensor component.

10. The electronic device according to claim 9, characterized in that, The optical sensor assembly is disposed on the lower layer of the screen structure layer.

11. A method for detecting film adhesion, characterized in that, Applied to the electronic device according to any one of claims 1-10, the method comprises: Turn on the screen; The optical signal reported by the optical sensor component is acquired, and if the optical signal indicates that the light intensity reaches a specified threshold, it is confirmed that the screen of the electronic device has a film.

12. The method according to claim 11, characterized in that, The screen lighting includes: Light up a designated area of ​​the screen, which is located above the optical sensor assembly.

13. An apparatus, characterized in that, include: processor; Memory used to store processor-executable instructions; The processor is configured as follows: Implement the method described in any one of claims 11 to 12.

14. A computer-readable storage medium having computer program instructions stored thereon, characterized in that, When executed by the processor, the program instructions implement the method described in any one of claims 11-12.

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