Display component, electronic device, and control method of electronic device

Abstract

The present application discloses a display component, an electronic device, and a control method for an electronic device, and belongs to the technical field of electronic devices. The display component includes: a light-emitting layer, an optical fingerprint sensor, and a circular polarizer assembly, wherein the optical fingerprint sensor is located on the first side of the light-emitting layer. The circular polarizer assembly is located on the second side of the light-emitting layer, and the polarization state of at least a portion of the light emitted by the light-emitting layer and emitted through the circular polarizer assembly is converted into a circular polarization state. The circular polarizer assembly includes a linear polarizer and a liquid crystal adjustment portion, at least a portion of the light-emitting layer is located between the liquid crystal adjustment portion and the optical fingerprint sensor, and at least a portion of the linear polarizer is located between the liquid crystal adjustment portion and the light-emitting layer. The light emitted by the light-emitting layer and emitted through the linear polarizer is in a first polarization state. When the liquid crystal adjustment portion is powered on, the emitted light is reflected by an object, and the light incident on the linear polarizer by the liquid crystal adjustment portion is in a second polarization state, and the polarization directions of the first polarization state and the second polarization state are the same.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic equipment, and specifically relates to a display component, an electronic device, and a control method of the electronic device. Background Art

[0002] Polarizers play an important role in reducing the reflectivity of display screens. Polarizers can be divided into linear polarizers and circular polarizers. Circular polarizers can convert outgoing linear polarized light into circular polarized light. Circular polarized light is closer to natural light and can effectively reduce visual fatigue caused by long-term use of mobile phones.

[0003] In a mobile phone's display screen, if a traditional linear polarization solution is used, the polarization state of the reflected light and the outgoing light are consistent, allowing the light to reach the optical fingerprint sensor smoothly. However, when a circular polarization solution is used, the outgoing light from the screen, after reflecting off the finger, has its polarization state essentially perpendicular to the outgoing light. This prevents the light from effectively reaching the optical fingerprint sensor, causing the optical fingerprint function to not function properly. Mobile phones using the circular polarization solution can only use the ultrasonic fingerprint solution, which increases the cost of the phone. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a display component, an electronic device, and a control method for an electronic device, which can achieve the technical effect of reducing the cost of the electronic device.

[0005] In a first aspect, an embodiment of the present application provides a display component, comprising: a light-emitting layer, an optical fingerprint sensor, located on a first side of the light-emitting layer; a circular polarizer assembly, located on a second side of the light-emitting layer, wherein the polarization state of at least a portion of the light emitted by the light-emitting layer and emitted through the circular polarizer assembly is converted into a circular polarization state, the circular polarizer assembly comprising a linear polarizer and a liquid crystal adjustment portion, at least a portion of the light-emitting layer being located between the liquid crystal adjustment portion and the optical fingerprint sensor, and at least a portion of the linear polarizer being located between the liquid crystal adjustment portion and the light-emitting layer, the light emitted by the light-emitting layer and emitted through the linear polarizer being in a first polarization state; wherein, when the liquid crystal adjustment portion is energized, the light emitted by the light-emitting layer and emitted through the linear polarizer is reflected by an object, and the light incident on the linear polarizer by the liquid crystal adjustment portion is in a second polarization state, and the polarization directions of the first polarization state and the second polarization state are the same.

[0006] In a second aspect, an embodiment of the present application provides an electronic device, including:

[0007] frame;

[0008] As in the display component of the first aspect, the display component is disposed on the frame.

[0009] In a third aspect, an embodiment of the present application provides a control method for an electronic device, which is used for the above-mentioned electronic device. The control method for the electronic device includes: receiving a first input; energizing a liquid crystal adjustment unit according to the first input; wherein, the light emitted by the light-emitting layer and emitted through the linear polarizer is a first polarization state, and when the liquid crystal adjustment unit is energized, the light emitted by the light-emitting layer and emitted through the linear polarizer is a first polarization state, and when the liquid crystal adjustment unit is energized, the light emitted by the light-emitting layer and emitted through the linear polarizer is reflected by an object, and the light incident on the linear polarizer by the liquid crystal adjustment unit is a second polarization state, and the polarization directions of the first polarization state and the second polarization state are the same.

[0010] In an embodiment of the present application, the circular polarizer assembly includes a linear polarizer and a liquid crystal adjustment portion. When light passes through the linear polarizer, the light is converted from an unpolarized state to linearly polarized light, and the polarization state of the light emitted outward by the linear polarizer is a first polarization state. At least a portion of the linear polarizer is located between the liquid crystal adjustment portion and the light-emitting layer. The light emitted from the display component will be incident on the display component after reflection, and a portion of the reflected light will be incident on the linear polarizer after adjustment by the liquid crystal. When the liquid crystal adjustment portion is powered on, the polarization state of the light incident on the linear polarizer after the reflected light passes through the liquid crystal adjustment portion is a second polarization state. Since the polarization directions of the first polarization state and the second polarization state are the same, the light can pass through the linear polarizer normally, so that the reflected light can successfully reach the optical fingerprint sensor. On the basis of the display component emitting circular polarized light outward, the display component can also use the optical fingerprint function normally.

[0011] This embodiment uses an adjustable liquid crystal material as a liquid crystal adjustment part. By applying voltage to the liquid crystal adjustment part, the optical properties of the liquid crystal material are changed, thereby adjusting the polarization state of the light. The liquid crystal adjustment part is set on the corresponding area of ​​the optical fingerprint sensor. The optical fingerprint sensor can stably receive light reflected from the outside. Electronic devices based on the circular polarization solution do not need to use the more expensive ultrasonic fingerprint solution, which is conducive to reducing the cost of electronic equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Shows a schematic structural diagram of an electronic device in some embodiments of the present application;

[0013] Figure 2 Shows a schematic structural diagram of a display assembly in some embodiments of the present application;

[0014] Figure 3 Shows a schematic structural diagram of a display assembly in some embodiments of the present application;

[0015] Figure 4 Shows a schematic structural diagram of a display assembly in some embodiments of the present application;

[0016] Figure 5 shows a flow chart of a control method provided in some embodiments of the present application;

[0017] Figure 6 shows a schematic block diagram of a control device provided in some embodiments of the present application;

[0018] Figure 7 shows a structural block diagram of an electronic device according to an embodiment of the present application;

[0019] Figure 8 A schematic diagram of the hardware structure of an electronic device provided in some embodiments of the present application is shown.

[0020] Figures 1 to 4 The reference numerals in the figures are as follows:

[0021] 100 display component, 110 light-emitting layer, 111 first part, 112 second part, 120 optical fingerprint sensor, 130 circular polarizer assembly, 131 linear polarizer, 132 liquid crystal adjustment unit, 133 first phase delay plate, 134 second phase delay plate, 135 light-transmitting layer, 140 cover plate, 200 frame. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0023] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0024] The following is combined with Figures 1 to 8 , the display component, electronic device, control method and control device provided in the embodiments of the present application are described in detail through specific embodiments and their application scenarios.

[0025] Combine Figure 1 and Figure 2As shown, in some embodiments of the present application, a display component 100 is provided, including: a light-emitting layer 110, an optical fingerprint sensor 120, and a circular polarizer assembly 130. The optical fingerprint sensor 120 is located on a first side of the light-emitting layer 110. The circular polarizer assembly 130 is located on a second side of the light-emitting layer 110. The polarization state of at least a portion of the light emitted by the light-emitting layer 110 and emitted through the circular polarizer assembly 130 is converted into a circular polarization state. The circular polarizer assembly 130 includes a linear polarizer 131 and a liquid crystal adjustment portion 132. At least a portion of the light-emitting layer 110 is located between the liquid crystal adjustment portion 132 and the optical fingerprint sensor 120. At least a portion of the linear polarizer 131 is located between the liquid crystal adjustment portion 132 and the light-emitting layer 110. The light emitted by the light-emitting layer 110 and emitted through the linear polarizer 131 ( Figure 2 The arrow at D in the figure indicates the direction of the emitted light (the arrow at D indicates the direction of the emitted light) is in the first polarization state. When the liquid crystal adjustment unit 132 is powered, the light emitted by the light-emitting layer 110 and emitted through the linear polarizer 131 is reflected by an object. The light incident on the linear polarizer 131 from the liquid crystal adjustment unit 132 is in the second polarization state. The first polarization state and the second polarization state have the same polarization direction.

[0026] Figure 1 The area indicated by B is the layout area of ​​the optical fingerprint sensor 120 corresponding to the display component 100.

[0027] Figure 2 、 Figure 3 and Figure 4 The area indicated by A is used to represent the user's fingerprint.

[0028] The light-emitting layer 110 can emit light. The light emitted by the light-emitting layer 110 passes through the circular polarizer assembly 130. The light emitted by the light-emitting layer 110 is generally unpolarized. The circular polarizer assembly 130 can convert the polarization state of at least a portion of the light passing through it into a circular polarization state. This ensures that at least a portion of the light exiting the display assembly 100 is circularly polarized. This circularly polarized light can reduce visual fatigue associated with mobile phone use when a user is using an electronic device.

[0029] The circular polarizer assembly 130 includes a linear polarizer 131 and a liquid crystal adjustment unit 132. When light passes through the linear polarizer 131, the light is converted from an unpolarized state to linearly polarized light. Furthermore, the polarization state of the light emitted through the linear polarizer 131 is a first polarization state. At least a portion of the linear polarizer 131 is located between the liquid crystal adjustment unit 132 and the light-emitting layer 110. Light emitted from the display component 100 is reflected by an object and enters the display component 100. For example, the object can be a user's finger. A portion of the reflected light is adjusted by the liquid crystal and enters the linear polarizer 131. When the liquid crystal adjustment unit 132 is powered on, the reflected light passes through the liquid crystal adjustment unit 132 and enters the linear polarizer 131 with a second polarization state. Since the polarization directions of the first polarization state and the second polarization state are the same, the light can pass through the linear polarizer 131 normally, so that the reflected light can successfully reach the optical fingerprint sensor 120. On the basis of the display component 100 emitting circularly polarized light, the display component 100 can also use the optical fingerprint function normally.

[0030] This embodiment uses an adjustable liquid crystal material as the liquid crystal adjustment portion 132. By applying a voltage to the liquid crystal adjustment portion 132, the optical properties of the liquid crystal material are changed, thereby adjusting the polarization state of the light. The liquid crystal adjustment portion 132 is set in the corresponding area of ​​the optical fingerprint sensor 120. The optical fingerprint sensor 120 can stably receive light reflected from the outside. Electronic devices based on the circular polarization solution do not need to use the more expensive ultrasonic fingerprint solution, which is conducive to reducing the cost of electronic equipment.

[0031] Figure 2 、 Figure 3 and Figure 4 In the figure, the light after the external light 1 is reflected is the reflected light path 1, and the light after the external light 2 is reflected is the reflected light path 2.

[0032] It should be noted that the polarization direction mentioned in this embodiment refers to the orientation of the light vector in space. The polarization direction of light and the propagation direction of light are concepts used to describe different characteristics of light. The polarization direction specified in this embodiment is not the propagation direction of light.

[0033] In some embodiments, optionally, when the liquid crystal adjustment unit 132 is powered, the light emitted by the light-emitting layer 110 and emitted through the liquid crystal adjustment unit 132 is linearly polarized; when the liquid crystal adjustment unit 132 is not powered, the light emitted by the light-emitting layer 110 and emitted through the liquid crystal adjustment unit 132 is circularly polarized. Alternatively, when the liquid crystal adjustment unit 132 is powered, the light emitted by the light-emitting layer 110 and emitted through the liquid crystal adjustment unit 132 is circularly polarized; when the liquid crystal adjustment unit 132 is not powered, the light emitted by the light-emitting layer 110 and emitted through the liquid crystal adjustment unit 132 is linearly polarized.

[0034] A portion of the light emitted by the light emitting layer 110 passes through the liquid crystal adjustment portion 132 . When the liquid crystal adjustment portion 132 is powered on, the light emitted through the liquid crystal adjustment portion 132 is linearly polarized light.

[0035] When the liquid crystal adjustment unit 132 is powered, if the light incident on the liquid crystal adjustment unit 132 is linearly polarized, the light emitted from the liquid crystal adjustment unit 132 will also be linearly polarized. If the light incident on the liquid crystal adjustment unit 132 is circularly polarized, the voltage changes the arrangement of the liquid crystal molecules in the liquid crystal adjustment unit 132, causing the light emitted from the liquid crystal adjustment unit 132 to be linearly polarized.

[0036] Therefore, the liquid crystal adjustment unit 132 in this embodiment can achieve circular polarization elimination. When linearly polarized light reflected from the outside enters the circular polarizer assembly 130, the linearly polarized light is directly emitted to the linear polarizer 131. When circularly polarized light reflected from the outside enters the circular polarizer assembly 130, the circularly polarized light is converted to linearly polarized light and then emitted to the linear polarizer 131. The linearly polarized light reflected back to the linear polarizer 131 has the same polarization state direction as the originally emitted linearly polarized light, allowing the light to pass through the linear polarizer 131.

[0037] When the liquid crystal adjustment unit 132 is not powered, the light emitted by the liquid crystal adjustment unit 132 is circularly polarized. At this time, the liquid crystal adjustment unit 132 does not perform de-circular polarization processing on the light. The light emitted from all parts of the display component 100 is circularly polarized light, so that there is no difference in the optical performance of the display component 100 at all parts.

[0038] Alternatively, when the liquid crystal adjustment unit 132 is powered, the light emitted by the light-emitting layer 110 and passing through the liquid crystal adjustment unit 132 is circularly polarized. That is, for light emitted outside the display assembly 100, regardless of whether the light incident on the liquid crystal adjustment unit 132 is linearly polarized or circularly polarized, the light exiting the liquid crystal adjustment unit 132 is circularly polarized. In this case, the de-circularization function is not achieved. When de-circularization is required, the liquid crystal adjustment unit 132 is powered off. At this time, the light emitted by the light-emitting layer 110 and passing through the liquid crystal adjustment unit 132 is linearly polarized.

[0039] like Figure 2As shown, in some embodiments, the circular polarizer assembly 130 optionally further includes: a first phase retarder 133 and a second phase retarder 134. The first phase retarder 133 is located on a first side of the light-emitting layer 110, and the linear polarizer 131 is located on a side of the first phase retarder 133 facing away from the light-emitting layer 110. The second phase retarder 134 is located on a side of the linear polarizer 131 facing away from the first phase retarder 133. The liquid crystal adjustment portion 132 and the second phase retarder 134 are located in the same layer. In the first direction H, the liquid crystal adjustment portion 132 and the second phase retarder 134 do not overlap. The projections of the liquid crystal adjustment portion 132 and the optical fingerprint sensor 120 on the light-emitting layer 110 at least partially overlap, and the projections of the second phase retarder 134 and the optical fingerprint sensor 120 on the light-emitting layer 110 do not overlap.

[0040] The light emitted by the light emitting layer 110 is initially unpolarized. When the light passes through the first phase retarder 133, the first phase retarder 133 does not change the polarization state of the light, and the light remains unpolarized. When the light passes through the linear polarizer 131, the light is converted into linearly polarized light.

[0041] The liquid crystal adjustment section 132 and the second phase retarder 134 are located on the same layer. Specifically, the portion of the second phase retarder 134 facing the optical fingerprint sensor 120 serves as the liquid crystal adjustment section 132. When the system detects the need for circular depolarization, the control circuit applies a corresponding voltage to the liquid crystal adjustment section 132, causing the liquid crystal molecules in the liquid crystal adjustment section 132 to change their alignment. When light passes through the liquid crystal adjustment section 132, the polarization state of the light remains unchanged, resulting in the emitted light being linearly polarized. When light passes through a portion of the second phase retarder 134 where the liquid crystal adjustment section 132 is not located, the linearly polarized light is converted to circularly polarized light. Therefore, the portion of the display assembly 100 corresponding to the optical fingerprint sensor 120 emits linearly polarized light, while the portion where the optical fingerprint sensor 120 is not located emits circularly polarized light. This allows the majority of the display area on the display assembly 100 to emit circularly polarized light, which improves the visual experience when using the electronic device.

[0042] The emitted light reflects after reaching the finger. When the reflected light passes through the liquid crystal adjustment unit 132, the state of the liquid crystal in the liquid crystal adjustment unit 132 remains the same as when the light exited, and the polarization state of the reflected light remains unchanged. When the reflected light passes through the liquid crystal adjustment unit 132 and strikes the linear polarizer 131, because the polarization direction of the reflected light is the same as when the light exited, the light can pass through the linear polarizer 131. The reflected light then passes through the first phase retarder 133, which converts the linearly polarized light into circularly polarized light. The light then passes through the light-emitting layer 110 and reaches the optical fingerprint sensor 120.

[0043] When the reflected light passes through the position of the second phase retarder 134 where the liquid crystal adjustment portion 132 is not provided, the polarization direction of the reflected light will be further changed. The polarization direction of the reflected light is different from the polarization direction of the light when it is emitted, and the light cannot pass through the linear polarizer 131.

[0044] When external light is incident on the display component 100, the external light is converted into vertical linear polarized light after passing through the linear polarizer 131. The vertical linear polarized light is converted into circularly polarized light after passing through the first phase delay plate 133. The circularly polarized light is reflected by the light-emitting layer 110 and reaches the first phase delay plate 133 again. The first phase delay plate 133 converts the circularly polarized light into horizontal linear polarized light. The horizontal linear polarized light has a different polarization state direction from the vertical linear polarized light, which causes the light to be unable to be emitted from the display component 100. Therefore, when external light is irradiated on the display component 100 and the light-emitting layer 110 does not emit light, the appearance of the display component 100 appears black, preventing users from seeing the messy structure on the light-emitting layer 110.

[0045] like Figure 3 As shown, in some embodiments, the circular polarizer assembly 130 optionally further includes: a first phase retarder 133 and a second phase retarder 134. The first phase retarder 133 is located on a first side of the light-emitting layer 110, and the linear polarizer 131 is located on a side of the first phase retarder 133 facing away from the light-emitting layer 110. The second phase retarder 134 is located on a side of the linear polarizer 131 facing away from the first phase retarder 133, and the liquid crystal adjustment unit 132 is disposed on a side of the second phase retarder 134 facing away from the linear polarizer 131.

[0046] Light emitted by the light-emitting layer 110 is initially unpolarized. When the light passes through the first phase retarder 133, the first phase retarder 133 does not change the polarization state of the light, and the light remains unpolarized. When the light passes through the linear polarizer 131, it is converted into linearly polarized light. When the linearly polarized light passes through the second phase retarder 134, it is converted into circularly polarized light.

[0047] When the system recognizes that circular polarization elimination is required, the control circuit applies a corresponding voltage to the liquid crystal adjustment unit 132 , causing the arrangement of liquid crystal molecules in the liquid crystal adjustment unit 132 to change. When circularly polarized light passes through the liquid crystal adjustment unit 132 , the circularly polarized light is converted into horizontally polarized light.

[0048] After the emitted light reaches the finger, it reflects. The reflected horizontally polarized light passes through the liquid crystal adjustment unit 132, which converts it into circularly polarized light. When the reflected light passes through the liquid crystal adjustment unit 132 and strikes the linear polarizer 131, because the polarization direction of the reflected light is the same as the polarization direction of the emitted light, the light can pass through the linear polarizer 131. The reflected light then passes through the first phase retarder 133, which converts the linearly polarized light into circularly polarized light. The light then passes through the light-emitting layer 110 and reaches the optical fingerprint sensor 120.

[0049] When the reflected light passes through a position in the second phase retarder 134 where the liquid crystal adjustment portion 132 is not provided, the second phase retarder 134 converts the light into horizontal linear polarization. When the horizontal linear polarization is input to the linear polarizer 131, the polarization direction of the reflected light is different from the polarization direction when the light is emitted, and the light cannot pass through the linear polarizer 131.

[0050] like Figure 3 As shown, in some embodiments, optionally, the display component 100 further includes: a light-transmitting layer 135, the light-transmitting layer 135 is connected to the liquid crystal adjustment portion 132, and the light-transmitting layer 135 is arranged on the side of the second phase delay plate 134 facing away from the offline polarizer 131. In the first direction, the projections of the liquid crystal adjustment portion 132 and the optical fingerprint sensor 120 on the light-emitting layer 110 at least partially overlap, and the projections of the light-transmitting layer 135 and the optical fingerprint sensor 120 on the light-emitting layer 110 do not overlap, and the polarization state direction of the light incident on the light-transmitting layer 135 and the light emitted from the light-transmitting layer 135 are the same.

[0051] The liquid crystal adjustment portion 132 is arranged on the side of the second phase delay plate 134 facing away from the offline polarizer 131, and the liquid crystal adjustment portion 132 corresponds to a local position on the second phase delay plate 134. In order to avoid local suspension on the side of the second phase delay plate 134 facing away from the offline polarizer 131, in this embodiment, the transparent layer 135 and the liquid crystal adjustment portion 132 are arranged on the same layer. The side of the second phase delay plate 134 facing away from the offline polarizer 131 can be completely covered by the transparent layer 135 and the liquid crystal adjustment portion 132, thereby ensuring the flatness of the display component 100 and avoiding damage to the display component 100 when subjected to force due to local suspension.

[0052] like Figure 4As shown, in some embodiments, the circular polarizer assembly 130 optionally includes a first phase retarder 133, which is located on a first side of the light-emitting layer 110, and a linear polarizer 131, which is located on a side of the first phase retarder 133 facing away from the light-emitting layer 110. When the liquid crystal adjustment unit 132 is not powered, the liquid crystal adjustment unit 132 is configured to convert light emitted from the light-emitting layer 110 and passing through the liquid crystal adjustment unit 132 from a linear polarization state to a circular polarization state, and to convert light reflected from an object and input inward from a circular polarization state to a linear polarization state.

[0053] The light emitted by the light emitting layer 110 is initially unpolarized. When the light passes through the first phase retarder 133, the first phase retarder 133 does not change the polarization state of the light, and the light remains unpolarized. When the light passes through the linear polarizer 131, the light is converted into linearly polarized light.

[0054] When the system recognizes that circular polarization elimination is required, the control circuit applies a corresponding voltage to the liquid crystal adjustment unit 132, causing the arrangement of the liquid crystal molecules in the liquid crystal adjustment unit 132 to change. When light passes through the liquid crystal adjustment unit 132, the polarization state of the light does not change, so that the emitted light is linearly polarized.

[0055] The emitted light reflects after reaching the finger. When the reflected light passes through the liquid crystal adjustment unit 132, the state of the liquid crystal in the liquid crystal adjustment unit 132 remains the same as when the light exited, and the polarization state of the reflected light remains unchanged. When the reflected light passes through the liquid crystal adjustment unit 132 and strikes the linear polarizer 131, because the polarization direction of the reflected light is the same as when the light exited, the light can pass through the linear polarizer 131. The reflected light then passes through the first phase retarder 133, which converts the linearly polarized light into circularly polarized light. The light then passes through the light-emitting layer 110 and reaches the optical fingerprint sensor 120.

[0056] When the optical fingerprint sensor 120 is not needed, or when the liquid crystal adjustment unit 132 is not powered, the liquid crystal adjustment unit 132 converts the light emitted by itself from a linear polarization state to a circular polarization state. That is, the liquid crystal adjustment unit 132 without power is used as a phase delay plate. At this time, the liquid crystal adjustment unit 132 can convert the emitted light into circularly polarized light, so that there is no difference in the optical performance of different parts of the display component 100.

[0057] like Figure 2As shown, in some embodiments, optionally, in a first direction, the first portion 111 in the light-emitting layer 110 and the projection of the optical fingerprint sensor 120 on the light-emitting layer 110 at least partially overlap, and the second portion 112 in the light-emitting layer 110 and the projection of the liquid crystal adjustment portion 132 on the light-emitting layer 110 at most partially overlap, and in the fingerprint unlocking mode or the fingerprint payment mode, the brightness of the first portion 111 is greater than the brightness of the second portion 112.

[0058] The first portion 111 of the light-emitting layer 110 faces the liquid crystal adjustment portion 132, while the second portion 112 of the light-emitting layer 110 faces away from the liquid crystal adjustment portion 132. In fingerprint unlocking mode or fingerprint payment mode, the brightness of the first portion 111 of the light-emitting layer 110 is greater than the brightness of the second portion 112. That is, the area of ​​the display assembly 100 corresponding to the optical fingerprint sensor 120 is highlighted, which serves as a reminder to the user and facilitates the user to use the fingerprint unlocking function or fingerprint payment function.

[0059] In some embodiments, optionally, the surface area of ​​the liquid crystal adjustment portion 132 facing away from the light emitting layer 110 is S1, the display area of ​​the display component 100 is S2, and S1 and S2 satisfy the following condition: S1≤0.1×S2.

[0060] The area occupied by the liquid crystal adjustment portion 132 on the display assembly 100 is less than or equal to 10% of the display area of ​​the display assembly 100 , thereby minimizing the influence of the liquid crystal adjustment portion 132 on the optical characteristics of other areas of the display assembly 100 .

[0061] It should be noted that the outward side of the display component 100 is the light emitting surface. Light from the display component 100 passes through the light emitting surface and then exits the display component 100. The display area of ​​the display component 100 refers to the area of ​​the light emitting surface.

[0062] like Figure 2 As shown, in some embodiments, optionally, the display assembly 100 further includes: a cover plate 140 , which is disposed on a side of the circular polarizer assembly 130 facing away from the light-emitting layer 110 .

[0063] The cover plate 140 is arranged on the circular polarizer assembly 130, and the cover plate 140 is located on the side of the circular polarizer assembly 130 away from the light-emitting layer 110, that is, the cover plate 140 is arranged on the outermost side of the display assembly 100. The cover plate 140 protects the internal structure of the display assembly 100, which is beneficial to reducing the damage rate of the display assembly 100.

[0064] Illustratively, in this embodiment, the cover plate 140 is a glass cover plate.

[0065] In an embodiment of the present application, a solution is proposed to solve the problem that circular polarization is incompatible with optical fingerprints. This solution performs circular polarization elimination processing on the area corresponding to the optical fingerprint sensor 120 in an OLED (Organic Light Emitting Diode) mobile phone, so that the light reflected back from the finger can pass through the circular polarizer assembly 130 normally, thereby meeting the optical transmittance requirements of the under-screen optical fingerprint.

[0066] The specific improvement of this application is the use of adjustable liquid crystal material as a circular polarization depolarization processing module. By embedding a liquid crystal layer in the area corresponding to the optical fingerprint in the circular polarizer assembly 130 and applying different voltages to change the optical properties of the liquid crystal material, depolarization of circular polarization is achieved. At the same time, since the optical fingerprint spot is small, the area of ​​the depolarized area accounts for a very low proportion of the entire mobile phone screen, and the on-time is mainly for the fingerprint unlocking scenario, so the overall display power consumption and display effect are less affected.

[0067] Fingerprint recognition preparation stage: The mobile phone system starts the fingerprint recognition function, and the user places his finger on the fingerprint recognition area.

[0068] Adjustment stage of the liquid crystal adjustment unit 132: The system identifies and determines whether the liquid crystal adjustment unit 132 needs to be adjusted. For example, when optical fingerprint unlocking or payment is required, the screen of the corresponding fingerprint area enters the highlight mode.

[0069] At this time, the depolarization effect needs to be enhanced, and a signal is sent to the control circuit. The control circuit applies a corresponding voltage to the liquid crystal adjustment unit 132 to change the arrangement of the liquid crystal molecules, thereby enhancing the depolarization effect.

[0070] However, if the depolarization effect needs to be reduced after fingerprint unlocking or payment is completed, the control circuit adjusts the voltage to restore the liquid crystal molecules to a relatively weak depolarization state.

[0071] During the light reflection and transmission phase, light from the screen passes through the circularly polarized structure and then strikes the finger. The light reflected from the finger then re-enters the display assembly 100. Adjustments made by the liquid crystal adjustment unit 132 allow the light reflected from the finger to better penetrate the module, meeting the optical transmittance requirements of the under-screen optical fingerprint sensor.

[0072] Fingerprint recognition stage: The under-screen optical fingerprint sensor 120 receives light passing through the screen module and identifies the characteristics of the fingerprint based on the light information.

[0073] Completion of the identification and recovery phase: After the fingerprint identification is completed, the mobile phone system performs corresponding operations (such as unlocking, payment, etc.) according to the identification results, and determines whether to continue to maintain the specific state of the liquid crystal adjustment unit 132 or restore it to the default state.

[0074] In the first embodiment, the circular polarizer assembly 130 includes a first phase retarder 133, a linear polarizer 131, a liquid crystal adjustment unit 132, and a second phase retarder 134. The first phase retarder 133 and the second phase retarder 134 are quarter-wave phase retarders. The liquid crystal adjustment unit 132 is embedded in the area of ​​the second phase retarder 134 corresponding to the optical fingerprint sensor 120. The circular polarization reduction effect is achieved by applying a voltage to change the optical properties of the liquid crystal material. When the system recognizes that the circular polarization reduction effect needs to be enhanced, the control circuit applies a corresponding voltage to the liquid crystal adjustment unit 132, causing the liquid crystal molecules to align and enhance the circular polarization reduction effect. Conversely, when the circular polarization reduction effect needs to be reduced, the voltage is adjusted to restore the liquid crystal molecules to their original state.

[0075] The area where the liquid crystal adjustment portion 132 is located is the area corresponding to the optical fingerprint sensor 120 of the entire device. Its area can be larger or smaller than the surface area of ​​the optical fingerprint sensor 120 facing the light-emitting layer 110, or its area can be larger or smaller than the surface area of ​​the first part 111 facing the linear polarizer 131. It has a certain degree of flexibility and can be adjusted according to specific design requirements and actual application scenarios.

[0076] The cross section of the liquid crystal adjustment portion 132 can be circular, square, etc., and its area is less than or equal to 10% of the screen display area to minimize the impact on the optical characteristics of other areas of the screen.

[0077] The liquid crystal adjustment portion 132 can achieve complete de-circularization or simply reduce the ellipticity of the overall circularly polarized light.

[0078] The optical path of the fingerprint recognition area is as follows:

[0079] Starting from the light-emitting layer 110: When the fingerprint is unlocked or paid, the screen corresponding to the fingerprint area enters the highlight mode, and the light emitted by the light-emitting layer 110 is initially in an unpolarized state.

[0080] After passing through the first phase retarder 133 , the polarization state of the light is not changed by this layer, and the light remains in a non-polarized state.

[0081] After passing through the linear polarizer 131 , the polarization state of the light is converted into linearly polarized light.

[0082] When the system recognizes that the anti-circular polarization effect needs to be enhanced after passing through the liquid crystal adjustment unit 132, the control circuit applies a corresponding voltage to the liquid crystal adjustment unit 132, and the arrangement of the liquid crystal molecules changes, and the polarization state of the light does not change after passing through.

[0083] After passing through the cover plate 140 , the polarization state of the light is substantially unaffected.

[0084] After the light reaches the finger and is reflected, it starts from the cover 140 , and the polarization state of the light is still parallel to the polarization state of the outgoing light.

[0085] When the light is reflected from the finger and passes through the liquid crystal adjustment portion 132 , the state of the liquid crystal remains the same as when it was emitted, and the polarization state of the light is not changed.

[0086] After passing through the linear polarizer 131 , the light passes through this layer. Since the polarization state is consistent with the polarization state direction when passing through the linear polarizer 131 when it is emitted, the light can pass through normally.

[0087] After passing through the first phase delay plate 133, the light passes through this layer and is converted into a circularly polarized state, and then passes through the light-emitting layer 110 to reach the fingerprint sensor. It should be noted that the light-emitting layer 110 in this embodiment is the light-emitting and driving layer, and the light passes through the internal circuit gaps of the light-emitting and driving layers to reach the fingerprint sensor.

[0088] In a second embodiment, the circular polarizer assembly 130 includes a first phase retarder 133, a linear polarizer 131, a liquid crystal adjustment unit 132, and a second phase retarder 134. This improves upon conventional circular polarization by embedding the liquid crystal adjustment unit 132 in the region corresponding to the optical fingerprint. This liquid crystal adjustment unit 132 modifies the optical properties of the liquid crystal material by applying a voltage, thereby controlling the phase delay of light in that region. When a specific voltage is applied, the liquid crystal adjustment unit 132 provides a quarter-wavelength phase delay at the location corresponding to the fingerprint, while maintaining a non-quarter-wavelength phase delay in other regions. When the system detects a need to enhance the depolarization effect, the control circuit applies a corresponding voltage to the liquid crystal adjustment unit 132, causing the liquid crystal molecules to align, enhancing the depolarization effect on circularly polarized light. Conversely, when the depolarization effect needs to be reduced, the voltage is adjusted to restore the liquid crystal molecules to their original state.

[0089] The functional area of ​​the liquid crystal adjustment portion 132 has a certain degree of flexibility. Its area can be larger or smaller than the surface area of ​​the optical fingerprint sensor 120 facing the light-emitting layer 110 , or larger or smaller than the surface area of ​​the first portion 111 facing the linear polarizer 131 .

[0090] The newly added liquid crystal adjustment portion 132 has a 1 / 4 wavelength phase delay functional area which can be circular, square, etc., and its area is less than or equal to 10% of the screen display area to minimize the impact on the optical characteristics of other areas of the screen.

[0091] The optical path of the fingerprint recognition area is as follows:

[0092] Starting from the light-emitting layer 110: When the fingerprint is unlocked or paid, the screen corresponding to the fingerprint area enters the highlight mode, and the light emitted by the light-emitting layer 110 is initially in an unpolarized state.

[0093] After passing through the first phase retarder 133 , the polarization state of the light is not changed by this layer, and the light remains in a non-polarized state.

[0094] After passing through the linear polarizer 131 , the polarization state of the light is converted into vertical linear polarized light.

[0095] After passing through the second phase retarder 134 , the vertical linear polarized light is converted into a circular polarization state.

[0096] The control circuit applies a corresponding voltage to the liquid crystal layer through the liquid crystal adjustment unit 132 , and the arrangement of the liquid crystal molecules changes, so that the liquid crystal layer has a 1 / 4 wavelength phase delay function under a specific voltage, and the light passing through the liquid crystal adjustment unit 132 is converted into horizontally polarized light.

[0097] After passing through the cover plate 140 , the polarization state of the light is substantially unaffected.

[0098] After the light reaches the finger and is reflected, it starts from the cover 140 , and the polarization state of the light is still the horizontal linear polarization state.

[0099] After passing through the liquid crystal adjustment portion 132 , when the light is reflected from the finger and passes through this layer, the state of the liquid crystal remains the same as when it was emitted, and the horizontal linear polarization light is converted into circular polarization light.

[0100] After passing through the second phase retarder 134 , the circularly polarized light is converted into vertically linearly polarized light.

[0101] After passing through the linear polarizer 131 , the light can pass through this layer normally because its polarization state is consistent with the polarization state direction of the linear polarizer 131 when it is emitted.

[0102] After passing through the first phase retarder 133, the light passes through this layer and is converted into a circular polarization state. Then, the light passes through the gap between the light emitting and driving layers and reaches the optical fingerprint sensor.

[0103] In addition, it is also possible to consider designing the entire surface of the 1 / 4 phase retarder as an adjustable liquid crystal adjustment portion 132 to reduce the influence of the optical effect caused by local differences.

[0104] This embodiment solves the problem of circular polarization being incompatible with optical fingerprint recognition, while also providing the eye-protection benefits of circular polarization. By using an adjustable liquid crystal material, the circular polarization elimination effect can be dynamically adjusted in real time based on actual needs, improving the recognition accuracy and user experience of optical fingerprint recognition.

[0105] In an embodiment of the present application, an electronic device is proposed, comprising a frame 200 and a display component 100 in any of the above embodiments, wherein the display component 100 is disposed on the frame 200, and the electronic device can achieve the technical effects in any of the above embodiments, which will not be repeated here.

[0106] The electronic device also includes other structures such as a main board, which will not be described in detail here.

[0107] In some embodiments of the present application, a control method for an electronic device is provided, which is applied to the electronic device in the above embodiments. Figure 5 1 shows a flow chart of the control method provided in some embodiments of the present application, such as Figure 5 As shown, the control method of the electronic device includes:

[0108] Step 402, receiving a first input;

[0109] In step 404, the liquid crystal adjustment unit is energized according to the first input, and the light emitted by the light-emitting layer and emitted through the linear polarizer is in a first polarization state. When the liquid crystal adjustment unit is energized, the light emitted by the light-emitting layer and emitted through the linear polarizer is reflected by the object, and the light incident on the linear polarizer by the liquid crystal adjustment unit is in a second polarization state. The polarization directions of the first polarization state and the second polarization state are the same.

[0110] In an embodiment of the present application, a circular polarizer assembly includes a linear polarizer and a liquid crystal adjustment unit. When light passes through the linear polarizer, the light is converted from an unpolarized state to linearly polarized light, and the polarization state of the light emitted by the linear polarizer is a first polarization state. At least a portion of the linear polarizer is located between the liquid crystal adjustment unit and the light-emitting layer. Light emitted from the display assembly is reflected and incident on the display assembly. A portion of the reflected light is adjusted by the liquid crystal and then enters the linear polarizer. When a first input is received, indicating that a user has requested to use the liquid crystal adjustment unit, the liquid crystal adjustment unit is powered on.

[0111] When the liquid crystal adjustment unit is powered, the reflected light passes through the liquid crystal adjustment unit and enters the linear polarizer in the second polarization state. Because the first and second polarization states have the same polarization direction, the light can pass through the linear polarizer normally, allowing the reflected light to successfully reach the optical fingerprint sensor. Based on the fact that the display unit emits circularly polarized light, the display unit can also function normally with the optical fingerprint function.

[0112] This embodiment uses an adjustable liquid crystal material as a liquid crystal adjustment part. By applying voltage to the liquid crystal adjustment part, the optical properties of the liquid crystal material are changed, thereby adjusting the polarization state of the light. The liquid crystal adjustment part is set on the corresponding area of ​​the optical fingerprint sensor. The optical fingerprint sensor can stably receive light reflected from the outside. Electronic devices based on the circular polarization solution do not need to use the more expensive ultrasonic fingerprint solution, which is conducive to reducing the cost of electronic equipment.

[0113] In some embodiments, optionally, the first input is a fingerprint unlocking input or a fingerprint payment input.

[0114] When the system detects that the user has a fingerprint unlocking requirement or a fingerprint payment requirement, the liquid crystal adjustment unit is energized to ensure that the light reflected by the finger can reach the optical fingerprint sensor.

[0115] In some embodiments, optionally, the control method further includes: in the fingerprint unlocking mode or the fingerprint payment mode, controlling the brightness of the first part of the light-emitting layer to be greater than the brightness of the second part.

[0116] In the first direction, a first portion of the light emitting layer faces the liquid crystal adjustment portion, and a second portion of the light emitting layer is staggered with respect to the liquid crystal adjustment portion.

[0117] The first portion of the light-emitting layer faces the liquid crystal adjustment unit, while the second portion of the light-emitting layer faces away from the liquid crystal adjustment unit. In fingerprint unlocking mode or fingerprint payment mode, the brightness of the first portion of the light-emitting layer is greater than that of the second portion. This means that the area of ​​the display assembly corresponding to the optical fingerprint sensor is highlighted, providing a user with a convenient way to unlock or pay with fingerprints.

[0118] The control method provided in the embodiment of the present application can be executed by a control device. In the embodiment of the present application, the control device provided in the embodiment of the present application is described by taking the control method executed by the control device as an example.

[0119] In some embodiments of the present application, a control device for an electronic device is provided, which is applied to the electronic device in the above embodiments. Figure 6 1 shows a schematic block diagram of a control device provided in some embodiments of the present application. Figure 6 As shown, the control device 500 of the electronic device includes:

[0120] Receiving module 502, configured to receive a first input;

[0121] The control module 504 is used to power on the liquid crystal adjustment unit according to the first input, so that the light emitted by the light-emitting layer and emitted through the linear polarizer is in a first polarization state. When the liquid crystal adjustment unit is powered on, the light emitted by the light-emitting layer and emitted through the linear polarizer is reflected by the object, and the light incident on the linear polarizer by the liquid crystal adjustment unit is in a second polarization state. The polarization directions of the first polarization state and the second polarization state are the same.

[0122] In an embodiment of the present application, a circular polarizer assembly includes a linear polarizer and a liquid crystal adjustment unit. When light passes through the linear polarizer, the light is converted from an unpolarized state to linearly polarized light, and the polarization state of the light emitted by the linear polarizer is a first polarization state. At least a portion of the linear polarizer is located between the liquid crystal adjustment unit and the light-emitting layer. Light emitted from the display assembly is reflected and incident on the display assembly. A portion of the reflected light is adjusted by the liquid crystal and then enters the linear polarizer. When a first input is received, indicating that a user has requested to use the liquid crystal adjustment unit, the liquid crystal adjustment unit is powered on.

[0123] When the liquid crystal adjustment unit is powered, the reflected light passes through the liquid crystal adjustment unit and enters the linear polarizer in the second polarization state. Because the first and second polarization states have the same polarization direction, the light can pass through the linear polarizer normally, allowing the reflected light to successfully reach the optical fingerprint sensor. Based on the fact that the display unit emits circularly polarized light, the display unit can also function normally with the optical fingerprint function.

[0124] This embodiment uses an adjustable liquid crystal material as a liquid crystal adjustment part. By applying voltage to the liquid crystal adjustment part, the optical properties of the liquid crystal material are changed, thereby adjusting the polarization state of the light. The liquid crystal adjustment part is set on the corresponding area of ​​the optical fingerprint sensor. The optical fingerprint sensor can stably receive light reflected from the outside. Electronic devices based on the circular polarization solution do not need to use the more expensive ultrasonic fingerprint solution, which is conducive to reducing the cost of electronic equipment.

[0125] In some embodiments, optionally, the first input is a fingerprint unlocking input or a fingerprint payment input.

[0126] When the system detects that the user has a fingerprint unlocking requirement or a fingerprint payment requirement, the liquid crystal adjustment unit is energized to ensure that the light reflected by the finger can reach the optical fingerprint sensor.

[0127] In some embodiments, optionally, the control module is further configured to: in a fingerprint unlocking mode or a fingerprint payment mode, control the brightness of the first portion of the light-emitting layer to be greater than the brightness of the second portion.

[0128] In the first direction, a first portion of the light emitting layer faces the liquid crystal adjustment portion, and a second portion of the light emitting layer is staggered with respect to the liquid crystal adjustment portion.

[0129] The first portion of the light-emitting layer faces the liquid crystal adjustment unit, while the second portion of the light-emitting layer faces away from the liquid crystal adjustment unit. In fingerprint unlocking mode or fingerprint payment mode, the brightness of the first portion of the light-emitting layer is greater than that of the second portion. This means that the area of ​​the display assembly corresponding to the optical fingerprint sensor is highlighted, providing a user with a convenient way to unlock or pay with fingerprints.

[0130] The control device in the embodiment of the present application can be an electronic device or a component in the electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal or other devices other than a terminal. For example, the electronic device can be a mobile phone, a tablet computer, a laptop computer, a PDA, an in-vehicle electronic device, a mobile Internet device (MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a personal digital assistant (PDA), etc. It can also be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a teller machine or a self-service machine, etc., and the embodiment of the present application does not specifically limit it.

[0131] The control device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.

[0132] The control device provided in the embodiment of the present application can implement each process implemented in the above method embodiment. To avoid repetition, it will not be described here.

[0133] Optionally, an embodiment of the present application further provides an electronic device, which includes a control device as in any of the above embodiments, and thus has all the beneficial effects of the control method in any of the embodiments, which will not be described in detail here.

[0134] Optionally, an embodiment of the present application further provides an electronic device, Figure 7 FIG. 1 shows a structural block diagram of an electronic device according to an embodiment of the present application. Figure 7 As shown, the electronic device 600 includes a processor 602, a memory 604, and a program or instruction stored in the memory 604 and executable on the processor 602. When the program or instruction is executed by the processor 602, the various processes of the above-mentioned control method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, they will not be described here.

[0135] It should be noted that the electronic devices in the embodiments of the present application include the above-mentioned mobile electronic devices and non-mobile electronic devices.

[0136] Figure 8 A schematic diagram of the hardware structure of an electronic device implementing an embodiment of the present application.

[0137] The electronic device 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709 and a processor 710.

[0138] Those skilled in the art will understand that the electronic device 700 may also include a power source (such as a battery) to power each component, and the power source may be logically connected to the processor 710 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system. Figure 8 The electronic device structure shown in the figure does not constitute a limitation on the electronic device. The electronic device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be repeated here.

[0139] The processor 710 is configured to receive a first input and, based on the first input, energize the liquid crystal adjustment unit. Light emitted by the light-emitting layer and exiting the linear polarizer is in a first polarization state. When the liquid crystal adjustment unit is energized, the light emitted by the light-emitting layer and exiting the linear polarizer, after reflection from an object, enters the linear polarizer through the liquid crystal adjustment unit and enters the linear polarizer in a second polarization state. The first polarization state and the second polarization state have the same polarization direction.

[0140] In the embodiment of the present application, an adjustable liquid crystal material is used as a liquid crystal adjustment part. By applying a voltage to the liquid crystal adjustment part, the optical properties of the liquid crystal material are changed, thereby adjusting the polarization state of the light. The liquid crystal adjustment part is set on the corresponding area of ​​the optical fingerprint sensor. The optical fingerprint sensor can stably receive the light reflected from the outside. Electronic devices based on the circular polarization solution do not need to use the more expensive ultrasonic fingerprint solution, which is conducive to reducing the cost of electronic equipment.

[0141] Furthermore, the first input is a fingerprint unlocking input or a fingerprint payment input.

[0142] In an embodiment of the present application, when the system detects that the user has a fingerprint unlocking requirement or a fingerprint payment requirement, the liquid crystal adjustment unit is energized to ensure that the light reflected by the finger can reach the optical fingerprint sensor.

[0143] Furthermore, the processor 710 is also used to control the brightness of the first part of the light-emitting layer to be greater than the brightness of the second part in the fingerprint unlocking mode or the fingerprint payment mode. In the first direction, the first part of the light-emitting layer is toward the liquid crystal adjustment part, and the second part of the light-emitting layer is staggered with the liquid crystal adjustment part.

[0144] The first portion of the light-emitting layer faces the liquid crystal adjustment unit, while the second portion of the light-emitting layer faces away from the liquid crystal adjustment unit. In fingerprint unlocking mode or fingerprint payment mode, the brightness of the first portion of the light-emitting layer is greater than that of the second portion. This means that the area of ​​the display assembly corresponding to the optical fingerprint sensor is highlighted, providing a user with a convenient way to unlock or pay with fingerprints.

[0145] It should be understood that in an embodiment of the present application, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042, and the graphics processor 7041 processes the image data of a static picture or a motion file obtained by an image capture device (such as a camera) in a motion file capture mode or an image capture mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 707 includes a touch panel 7071 and at least one of other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and an operating stick, which will not be repeated here.

[0146] The memory 709 can be used to store software programs and various data. The memory 709 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 709 may include a volatile memory or a non-volatile memory, or the memory 709 may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct memory bus random access memory (DRRAM). The memory 709 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0147] Processor 710 may include one or more processing units. Optionally, processor 710 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 710.

[0148] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0149] The processor is the processor in the electronic device in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.

[0150] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned control method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0151] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0152] An embodiment of the present application provides a computer program product, which is stored in a storage medium. The program product is executed by at least one processor to implement the various processes of the above-mentioned control method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0153] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, device, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, device, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, device, article or device comprising the element. In addition, it should be noted that the scope of the devices and apparatus in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described apparatus may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0154] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment devices can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), including a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, or network device, etc.) to execute the devices of each embodiment of the present application.

[0155] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A display component, characterized in that: include: a luminescent layer; an optical fingerprint sensor located on the first side of the light-emitting layer; a circular polarizer assembly located on a second side of the light-emitting layer, wherein the polarization state of at least a portion of light emitted by the light-emitting layer and emitted through the circular polarizer assembly is converted into a circular polarization state, the circular polarizer assembly comprising a linear polarizer and a liquid crystal adjustment portion, at least a portion of the light-emitting layer being located between the liquid crystal adjustment portion and the optical fingerprint sensor, and at least a portion of the linear polarizer being located between the liquid crystal adjustment portion and the light-emitting layer, and light emitted by the light-emitting layer and emitted through the linear polarizer being in a first polarization state; In which, when the liquid crystal adjustment part is powered on, the light emitted by the light-emitting layer and emitted through the linear polarizer is reflected by an object, and the light incident on the linear polarizer by the liquid crystal adjustment part is in a second polarization state, and the polarization directions of the first polarization state and the second polarization state are the same.

2. The display assembly according to claim 1, wherein: When the liquid crystal adjustment unit is powered on, the light emitted by the light emitting layer and passing through the liquid crystal adjustment unit is in a linear polarization state; when the liquid crystal adjustment unit is not powered on, the light emitted by the light emitting layer and passing through the liquid crystal adjustment unit is in a circular polarization state; or When the liquid crystal adjustment unit is powered on, the light emitted by the light-emitting layer and emitted through the liquid crystal adjustment unit is circularly polarized; when the liquid crystal adjustment unit is not powered on, the light emitted by the light-emitting layer and emitted through the liquid crystal adjustment unit is linearly polarized.

3. The display assembly according to claim 1 or 2, characterized in that: The circular polarizer assembly further includes: A first phase retarder is located on a first side of the light-emitting layer, and the linear polarizer is located on a side of the first phase retarder away from the light-emitting layer; The second phase retarder is located on the side of the linear polarizer away from the first phase retarder, the liquid crystal adjustment part and the second phase retarder are located on the same layer, in a first direction, the liquid crystal adjustment part and the second phase retarder do not overlap, the projection of the liquid crystal adjustment part and the optical fingerprint sensor on the light-emitting layer at least partially overlap, and the second phase retarder does not overlap with the projection of the optical fingerprint sensor on the light-emitting layer.

4. The display assembly according to claim 1 or 2, characterized in that: The circular polarizer assembly further includes: A first phase retarder is located on a first side of the light-emitting layer, and the linear polarizer is located on a side of the first phase retarder away from the light-emitting layer; The second phase retarder is located on a side of the linear polarizer away from the first phase retarder, and the liquid crystal adjustment portion is provided on a side of the second phase retarder away from the linear polarizer.

5. The display assembly according to claim 4, wherein: The display assembly further includes: A light-transmitting layer is connected to the liquid crystal adjustment unit. The light-transmitting layer is arranged on a side of the second phase retarder facing away from the linear polarizer. In a first direction, the projections of the liquid crystal adjustment unit and the optical fingerprint sensor on the light-emitting layer at least partially overlap, the light-transmitting layer and the projection of the optical fingerprint sensor on the light-emitting layer do not overlap, and the polarization state direction of the light incident on the light-transmitting layer and the light emitted from the light-transmitting layer are the same.

6. The display assembly according to claim 1 or 2, characterized in that: The circular polarizer assembly comprises: A first phase retarder is located on a first side of the light-emitting layer, and the linear polarizer is located on a side of the first phase retarder away from the light-emitting layer; In which, when the liquid crystal adjustment unit is not powered, the liquid crystal adjustment unit is used to convert the light emitted by the light-emitting layer and emitted through the liquid crystal adjustment unit from a linear polarization state to a circular polarization state, and to convert the light reflected from an object and passing through the liquid crystal adjustment unit from a circular polarization state to a linear polarization state.

7. The display assembly according to claim 1 or 2, characterized in that: In a first direction, a first portion of the light-emitting layer and a projection of the optical fingerprint sensor on the light-emitting layer at least partially overlap, and a second portion of the light-emitting layer and a projection of the liquid crystal adjustment portion on the light-emitting layer at most partially overlap. In a fingerprint unlocking mode or a fingerprint payment mode, the brightness of the first portion is greater than the brightness of the second portion.

8. An electronic device, characterized in that: include: frame; The display assembly according to any one of claims 1 to 7, wherein the display assembly is arranged on the frame.

9. A method for controlling an electronic device, characterized in that: For the electronic device according to claim 8, the control method comprises: receiving a first input; energizing the liquid crystal adjustment unit according to the first input; Among them, the light emitted by the light-emitting layer and emitted through the linear polarizer is in a first polarization state. When the liquid crystal adjustment unit is energized, the light emitted by the light-emitting layer and emitted through the linear polarizer is reflected by an object, and the light incident on the linear polarizer by the liquid crystal adjustment unit is in a second polarization state, and the polarization directions of the first polarization state and the second polarization state are the same.

10. The control method according to claim 9, characterized in that: The first input is a fingerprint unlocking input or a fingerprint payment input.

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