Display assembly, electronic equipment and control method of electronic equipment

Abstract

The invention discloses a display assembly, electronic equipment and a control method of the electronic equipment, and belongs to the technical field of electronic equipment. The display assembly comprises a light-emitting layer, an optical fingerprint sensor and a circular polarizer assembly, and the optical fingerprint sensor is located on the first side of the light-emitting layer. The circular polaroid assembly is located on the second side of the light-emitting layer, the polarization state of at least one part of light emitted by the light-emitting layer and emitted by the circular polaroid assembly is converted into a circular polarization state, the circular polaroid assembly comprises a linear polaroid and a liquid crystal adjusting part, and at least one part of the light-emitting layer is located between the liquid crystal adjusting part and the optical fingerprint sensor; at least one part of the linear polarizer is located between the liquid crystal adjusting part and the light-emitting layer, and light emitted by the light-emitting layer and emitted through the linear polarizer is in a first polarization state. When the liquid crystal adjusting part is powered on, after the emitted light is reflected by the object, the light entering the linear polarizer from the liquid crystal adjusting part is in a second polarization state, and the polarization state 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 the display screen. Polarizers can be divided into linear polarizers and circular polarizers. Circular polarizers can convert the outgoing linear polarized light into circular polarized light. Circular polarized light is closer to natural light and can effectively reduce the visual fatigue caused by long-term use of mobile phones.

[0003] In the display screen of a mobile phone, if the traditional linear polarization solution is used, the polarization state of the reflected light and the outgoing light are consistent, and the light can reach the optical fingerprint sensor smoothly. However, when the circular polarization solution is used, the outgoing light from the screen is reflected by the finger, and its polarization state is basically perpendicular to the outgoing light. The light cannot effectively reach the optical fingerprint sensor, resulting in the optical fingerprint function not being able to work properly. Mobile phones based on the circular polarization solution can only use the ultrasonic fingerprint solution, which increases the cost of the mobile 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 comprises 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, at least a portion of the linear polarizer is located between the liquid crystal adjustment portion and the light-emitting layer, and the light emitted by the light-emitting layer and emitted through the linear polarizer is in a first polarization state; wherein, when the liquid crystal adjustment portion 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 from 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, and the control method for the electronic device includes: receiving a first input; according to the first input, energizing a liquid crystal adjustment unit; wherein, the light emitted by the light-emitting layer and emitted through the linear polarizer is in 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 in the 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 in a second polarization state, and the polarization directions of the first polarization state and the second polarization state are the same.

[0010] In the embodiment of the present application, the circular polarizer assembly includes a linear polarizer and a liquid crystal adjustment part. When the light passes through the linear polarizer, the light is converted from a non-polarized state to a linear 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 part and the light emitting layer. The light emitted from the display component will be incident into the display component after reflection, and a portion of the reflected light will be incident into the linear polarizer after being adjusted by the liquid crystal. When the liquid crystal adjustment part is powered on, after the reflected light passes through the liquid crystal adjustment part, the polarization state of the light incident on the linear polarizer 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 polarization 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 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 a more expensive ultrasonic fingerprint solution, which is conducive to reducing the cost of electronic equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram showing the structure of an electronic device in some embodiments of the present application is shown;

[0013] Figure 2 A schematic diagram showing the structure of a display assembly in some embodiments of the present application is shown;

[0014] Figure 3 A schematic diagram showing the structure of a display assembly in some embodiments of the present application is shown;

[0015] Figure 4 A schematic diagram showing the structure of a display assembly in some embodiments of the present application is shown;

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

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

[0018] Figure 7 A structural block diagram of an electronic device according to an embodiment of the present application is shown;

[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 drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0023] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "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 and its 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] Combination 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, wherein 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, and 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, and 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, and at least a portion of the linear polarizer 131 is located between the liquid crystal adjustment portion 132 and the light-emitting layer 110, and 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) is in the first polarization state. When the liquid crystal adjustment unit 132 is powered on, the light emitted by the light emitting layer 110 and emitted through the linear polarizer 131 is reflected by the object, and the light incident on the linear polarizer 131 from the liquid crystal adjustment unit 132 is in the second polarization state, and the polarization directions of the first polarization state and the second polarization state are the same.

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

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

[0028] The light emitting layer 110 can emit light, and 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 usually in a non-polarized state. The circular polarizer assembly 130 can convert the polarization state of at least a portion of the light passing through itself into a circular polarization state. Thus, at least a portion of the light emitted from the display assembly 100 is circularly polarized light. When a user uses an electronic device, the circularly polarized light can reduce visual fatigue caused by using a mobile phone.

[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 a non-polarized state to a linear polarized light, and 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. The light emitted from the display component 100 is reflected by an object and is incident into the display component 100. For example, the object can be a user's finger. A portion of the reflected light is incident into the linear polarizer 131 after being adjusted by the liquid crystal. When the liquid crystal adjustment unit 132 is powered on, the reflected light passes through the liquid crystal adjustment unit 132, and the polarization state of the light incident into the linear polarizer 131 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 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 unit 132. By applying a voltage to the liquid crystal adjustment unit 132, the optical properties of the liquid crystal material are changed, thereby adjusting the polarization state of the light. The liquid crystal adjustment unit 132 is set in the corresponding area of ​​the optical fingerprint sensor 120. The optical fingerprint sensor 120 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.

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

[0032] It should be noted that the polarization direction proposed 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 indicated 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 in a linear polarization state; 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 in a circular polarization state. 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 in a circular polarization state; 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 in a linear polarization state.

[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 on, for the light emitted to the outside of the display module 100, when the light incident to the liquid crystal adjustment unit 132 is linearly polarized light, the light emitted through the liquid crystal adjustment unit 132 is also linearly polarized light. When the light incident to the liquid crystal adjustment unit 132 is circularly polarized light, the arrangement of the liquid crystal molecules in the liquid crystal adjustment unit 132 is changed by voltage, so that the light emitted through the liquid crystal adjustment unit 132 is linearly polarized light.

[0036] Therefore, the liquid crystal adjustment unit 132 in this embodiment can realize the function of eliminating circular polarization. When the linear polarized light reflected from the outside enters the circular polarizer assembly 130, the linear polarized light will directly enter the linear polarizer 131. When the circular polarized light reflected from the outside enters the circular polarizer assembly 130, the circular polarized light is converted into linear polarized light and then enters the linear polarizer 131. The linear polarized light reflected from the outside and entering the linear polarizer 131 has the same polarization state direction as the initially emitted linear polarized light, so that the light can pass through the linear polarizer 131.

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

[0038] Alternatively, when the liquid crystal adjustment unit 132 is powered on, the light emitted by the light emitting layer 110 and emitted through the liquid crystal adjustment unit 132 is in a circular polarization state, that is, for the light emitted to the outside of the display component 100, regardless of whether the light incident on the liquid crystal adjustment unit 132 is in a linear polarization state or a circular polarization state, the light emitted from the liquid crystal adjustment unit 132 is in a circular polarization state, and the function of eliminating circular polarization is not achieved at this time. When the function of eliminating circular polarization needs to be achieved, the liquid crystal adjustment unit 132 is powered off, and at this time, the light emitted by the light emitting layer 110 and emitted through the liquid crystal adjustment unit 132 is in a linear polarization state.

[0039] like Figure 2As shown, in some embodiments, optionally, the circular polarizer assembly 130 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 away from the light-emitting layer 110. The second phase retarder 134 is located on a side of the linear polarizer 131 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 in a non-polarized state. 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 in a non-polarized state. When the light passes through the linear polarizer 131, the light is converted into linearly polarized light.

[0041] The liquid crystal adjustment part 132 and the second phase delay plate 134 are located in the same layer, that is, the part of the second phase delay plate 134 facing the optical fingerprint sensor 120 serves as the liquid crystal adjustment part 132. When the system recognizes that circular polarization needs to be eliminated, the control circuit applies a corresponding voltage to the liquid crystal adjustment part 132, and the arrangement of the liquid crystal molecules in the liquid crystal adjustment part 132 changes. When the light passes through the liquid crystal adjustment part 132, the polarization state of the light does not change, so that the emitted light is a linearly polarized state. When the light passes through the position where the liquid crystal adjustment part 132 is not set in the second phase delay plate 134, the linearly polarized light is converted into circularly polarized light. Therefore, the part of the display component 100 corresponding to the optical fingerprint sensor 120 emits linearly polarized light, and the position where the optical fingerprint sensor 120 is not set emits circularly polarized light, so that most of the display area on the display component 100 can emit circularly polarized light, which is beneficial to improve the visual effect when using the electronic device.

[0042] The emitted light reaches the finger and then reflects. 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 is emitted, and the polarization state of the reflected light is not changed. When the reflected light passes through the liquid crystal adjustment unit 132 and is emitted to the linear polarizer 131, since the polarization state direction of the reflected light is the same as the polarization state direction of the light when emitted, the light can pass through the linear polarizer 131. The reflected light continues to pass through the first phase retarder 133, which converts the linear polarized light into circular polarized light, and then passes through the light emitting layer 110 to reach 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 part 132 is not set, 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, and the vertical linear polarized light is converted into circularly polarized light after passing through the first phase retarder 133. The circularly polarized light is reflected by the light-emitting layer 110 and reaches the first phase retarder 133 again. The first phase retarder 133 converts the circularly polarized light into horizontal linear polarized light. The polarization state direction of the horizontal linear polarized light is different from that of the vertical linear polarized light, which makes it impossible for the light to be emitted from the display component 100. Therefore, when external light is irradiated to the display component 100 and the light-emitting layer 110 does not emit light, the appearance of the display component 100 looks black, preventing users from seeing the messy structure on the light-emitting layer 110.

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

[0046] The light emitted by the light emitting layer 110 is initially in a non-polarized state. 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 in a non-polarized state. When the light passes through the linear polarizer 131, the light is converted into linearly polarized light. When the linearly polarized light passes through the second phase retarder 134, the light 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 , and the arrangement of liquid crystal molecules in the liquid crystal adjustment unit 132 changes. When the circularly polarized light passes through the liquid crystal adjustment unit 132 , the circularly polarized light is converted into horizontally linear polarized light.

[0048] The emitted light reaches the finger and then reflects. When the reflected horizontal linear polarized light passes through the liquid crystal adjustment unit 132, the liquid crystal adjustment unit 132 converts the horizontal linear polarized light into circular polarized light. When the reflected light passes through the liquid crystal adjustment unit 132 and is emitted to the linear polarizer 131, since the polarization state direction of the reflected light is the same as the polarization state direction of the emitted light, the light can pass through the linear polarizer 131. The reflected light continues to pass through the first phase retarder 133, which converts the linear polarized light into circular polarized light, and then passes through the light emitting layer 110 to reach the optical fingerprint sensor 120.

[0049] When the reflected light passes through a position in the second phase delay plate 134 where the liquid crystal adjustment unit 132 is not provided, the second phase delay plate 134 converts the light into horizontal linear polarization. When the horizontal linear polarization is input to the linear polarizer 131, the polarization state direction of the reflected light is different from the polarization state 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 unit 132, 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 a first direction, the projections of the liquid crystal adjustment unit 132 and the optical fingerprint sensor 120 on the light-emitting layer 110 at least partially overlap, the light-transmitting layer 135 and the projections of 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 part 132 is arranged on the side of the second phase delay film 134 facing away from the offline polarizer 131, and the liquid crystal adjustment part 132 corresponds to a local position on the second phase delay film 134. In order to avoid partial suspension on the side of the second phase delay film 134 facing away from the offline polarizer 131, in this embodiment, the light-transmitting layer 135 and the liquid crystal adjustment part 132 are arranged on the same layer. The side of the second phase delay film 134 facing away from the offline polarizer 131 can be completely covered by the light-transmitting layer 135 and the liquid crystal adjustment part 132, thereby ensuring the flatness of the display component 100 and avoiding damage to the display component 100 when subjected to force due to partial suspension.

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

[0053] The light emitted by the light emitting layer 110 is initially in a non-polarized state. 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 in a non-polarized state. 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, and the arrangement of the liquid crystal molecules in the liquid crystal adjustment unit 132 changes. When the light passes through the liquid crystal adjustment unit 132, the polarization state of the light does not change, so that the emitted light is in a linear polarization state.

[0055] The emitted light reaches the finger and then reflects. 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 is emitted, and the polarization state of the reflected light is not changed. When the reflected light passes through the liquid crystal adjustment unit 132 and is emitted to the linear polarizer 131, since the polarization state direction of the reflected light is the same as the polarization state direction of the light when emitted, the light can pass through the linear polarizer 131. The reflected light continues to pass through the first phase retarder 133, which converts the linear polarized light into circular polarized light, and then passes through the light emitting layer 110 to reach 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 on, 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 that is not powered on 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 various parts of the display component 100.

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

[0058] The first portion 111 of the light emitting layer 110 faces the liquid crystal adjustment portion 132, and the second portion 112 of the light emitting layer 110 does not face the liquid crystal adjustment portion 132. In the fingerprint unlocking mode or the 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 corresponding to the optical fingerprint sensor 120 in the display component 100 is in a highlighted mode, which serves as a prompt to the user, making it convenient for the user to realize the fingerprint unlocking function or the fingerprint payment function.

[0059] In some embodiments, optionally, the surface area of ​​the liquid crystal adjustment portion 132 on the side 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 part 132 on the display component 100 is less than or equal to 10% of the display area of ​​the display component 100 , thereby minimizing the influence of the liquid crystal adjustment part 132 on the optical characteristics of other areas in the display component 100 .

[0061] It should be noted that the outward side of the display component 100 is a 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 , and the cover plate 140 is disposed on a side of the circular polarizer assembly 130 away from the light-emitting layer 110 .

[0063] The cover plate 140 is disposed 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 disposed on the outermost side of the display assembly 100 . The cover plate 140 protects the internal structure of the display assembly 100 , which helps to reduce 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 to the problem that circular polarization is incompatible with optical fingerprints is proposed. The 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 to use an adjustable liquid crystal material as a circular 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, the circular polarization is depolarized. 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 opening time is mainly for the fingerprint unlocking scene, 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 in 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 in 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 the fingerprint unlocking or payment action is completed, the control circuit adjusts the voltage to restore the liquid crystal molecules to a relatively weak depolarization state.

[0071] Light reflection and transmission stage: The light emitted by the screen passes through the circular polarization structure and then irradiates the finger, and the light reflected by the finger enters the display component 100 again. Due to the adjustment of the liquid crystal adjustment unit 132, the light reflected back from the finger can better pass through the module, meeting the optical transmittance requirements of the under-screen optical fingerprint.

[0072] Fingerprint recognition stage: The under-screen optical fingerprint sensor 120 receives light passing through the screen module and recognizes 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 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 1 / 4 phase retarder, and 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 optical properties of the liquid crystal material are changed by applying voltage to achieve the de-circular polarization effect. When the system recognizes that the de-circular polarization effect needs to be enhanced, the control circuit applies a corresponding voltage to the liquid crystal adjustment unit 132, so that the arrangement of the liquid crystal molecules changes, and the de-polarization effect on the circular polarization is enhanced. Conversely, when the de-circular polarization 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 part 132 is located is the area corresponding to the optical fingerprint sensor 120 of the whole machine. 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 is larger or smaller than the surface area of ​​the first part 111 facing the linear polarizer 131. It has a certain 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, so as to minimize the impact on the optical characteristics of other areas of the screen.

[0077] The liquid crystal adjustment unit 132 can achieve complete de-circularization or just 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 high-brightness mode, and the light emitted by the light-emitting layer 110 is initially in a non-polarized 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 linear 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, 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 plate 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 is 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, and because the polarization state is consistent with the polarization state direction when passing through the linear polarizer 131 when emitted, the light can pass 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 reaches the fingerprint sensor through the light-emitting layer 110. It should be noted that the light-emitting layer 110 in this embodiment is the light-emitting and driving layer, and the light reaches the fingerprint sensor through the internal circuit gap of the light-emitting and driving layer.

[0088] In the second embodiment, the circular polarizer assembly 130 includes: a first phase delay plate 133, a linear polarizer 131, a liquid crystal adjustment unit 132 and a second phase delay plate 134. It is improved on the basis of traditional circular polarization, and the liquid crystal adjustment unit 132 is embedded in the area corresponding to the optical fingerprint. The liquid crystal adjustment unit 132 changes the optical properties of the liquid crystal material by applying a voltage, thereby realizing the control of the phase delay of the light in the area. When a specific voltage is applied, the liquid crystal adjustment unit 132 has a 1 / 4 wavelength phase delay function at the position corresponding to the fingerprint, and a non-1 / 4 phase delay in other areas. When the system recognizes that the de-circular polarization effect needs to be enhanced, the control circuit applies a corresponding voltage to the liquid crystal adjustment unit 132, so that the arrangement of the liquid crystal molecules changes, and the de-polarization effect on the circular polarization is enhanced. Conversely, when the de-circular polarization 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 part 132 has a certain 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 its area can be larger or smaller than the surface area of ​​the first part 111 facing the linear polarizer 131 .

[0090] The newly added liquid crystal adjustment part 132 has a functional area with a 1 / 4 wavelength phase delay which can be circular, square, etc., and its area is less than or equal to 10% of the screen display area, minimizing 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 high-brightness mode, and the light emitted by the light-emitting layer 110 is initially in a non-polarized 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] Through the liquid crystal adjustment unit 132 , the control circuit applies a corresponding voltage to the liquid crystal layer, 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 passes through the liquid crystal adjustment unit 132 and is converted into horizontal linear 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 plate 140 , and the polarization state of the light is still a horizontal linear polarization state.

[0099] 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 is emitted, and the horizontal linear polarized light is converted into circular polarized 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 passes through this layer. Since the polarization state is consistent with the polarization state direction when passing through the linear polarizer 131 when emitted, the light can pass normally.

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

[0103] In addition, it is also possible to consider designing the entire surface of the 1 / 4 phase delay plate 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 that circular polarization is incompatible with optical fingerprints, while satisfying the circular polarization eye protection effect. By using adjustable liquid crystal materials, the circular polarization elimination effect can be adjusted in real time and dynamically according to actual needs, thereby improving the recognition accuracy of optical fingerprints and user experience.

[0105] In an embodiment of the present application, an electronic device is proposed, including a frame 200 and a display component 100 in any of the above embodiments, the display component 100 is arranged 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 of an electronic device is provided, which is applied to the electronic device in the above embodiments. Figure 5 Schematic diagram of the control method provided in some embodiments of the present application is shown. Figure 5 As shown, a control method of an electronic device includes:

[0108] Step 402, receiving a first input;

[0109] Step 404, according to the first input, the liquid crystal adjustment unit is energized, 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, and the polarization directions of the first polarization state and the second polarization state are the same.

[0110] In the embodiment of the present application, the 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 a non-polarized state to a linear polarized light, and the polarization state of the light emitted through 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. The light emitted from the display component is reflected and incident into the display component. A portion of the reflected light is adjusted by the liquid crystal and then incident into the linear polarizer. When the first input is received, it indicates that the user has a use demand for the liquid crystal adjustment unit, and the liquid crystal adjustment unit is powered on.

[0111] When the liquid crystal adjustment unit is powered on, the polarization state of the reflected light incident on the linear polarizer is the second polarization state after passing through the liquid crystal adjustment unit. 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 polarization, the display component can also use the optical fingerprint function normally.

[0112] This embodiment uses an adjustable liquid crystal material 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 a 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 a fingerprint unlocking mode or a 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 part of the light-emitting layer faces the liquid crystal adjustment part, and the second part of the light-emitting layer does not face the liquid crystal adjustment part. In the fingerprint unlocking mode or the fingerprint payment mode, the brightness of the first part of the light-emitting layer is greater than the brightness of the second part, that is, the area corresponding to the optical fingerprint sensor in the display component is in a highlighted mode, which serves as a prompt to the user and facilitates the user to realize the fingerprint unlocking function or the fingerprint payment function.

[0118] In the control method provided in the embodiment of the present application, the execution subject may be 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 Schematic block diagram of a control device provided in some embodiments of the present application is shown. Figure 6 As shown, the control device 500 of the electronic device includes:

[0120] A 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 the embodiment of the present application, the 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 a non-polarized state to a linear polarized light, and the polarization state of the light emitted through 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. The light emitted from the display component is reflected and incident into the display component. A portion of the reflected light is adjusted by the liquid crystal and then incident into the linear polarizer. When the first input is received, it indicates that the user has a use demand for the liquid crystal adjustment unit, and the liquid crystal adjustment unit is powered on.

[0123] When the liquid crystal adjustment unit is powered on, the polarization state of the reflected light incident on the linear polarizer is the second polarization state after passing through the liquid crystal adjustment unit. 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 polarization, the display component can also use the optical fingerprint function normally.

[0124] This embodiment uses an adjustable liquid crystal material 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 a 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 used to: in the fingerprint unlocking mode or the fingerprint payment mode, control the brightness of the first part of the light-emitting layer to be greater than the brightness of the second part.

[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 part of the light-emitting layer faces the liquid crystal adjustment part, and the second part of the light-emitting layer does not face the liquid crystal adjustment part. In the fingerprint unlocking mode or the fingerprint payment mode, the brightness of the first part of the light-emitting layer is greater than the brightness of the second part, that is, the area corresponding to the optical fingerprint sensor in the display component is in a highlighted mode, which serves as a prompt to the user and facilitates the user to realize the fingerprint unlocking function or the fingerprint payment function.

[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. Exemplarily, the electronic device can be a mobile phone, a tablet computer, a laptop computer, a PDA, a vehicle-mounted electronic device, a mobile Internet device (Mobile Internet Device, MID), an augmented reality (augmented reality, AR) / virtual reality (virtual reality, VR) device, a robot, a wearable device, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a netbook or a personal digital assistant (personal digital assistant, PDA), etc., and can also be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., which is not specifically limited in the embodiment of the present application.

[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, and will not be described again here to avoid repetition.

[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 elaborated herein.

[0134] Optionally, an embodiment of the present application further provides an electronic device, Figure 7 A structural block diagram of an electronic device according to an embodiment of the present application is shown. 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, each process of the above-mentioned control method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it 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 to implement 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, a processor 710 and other components.

[0138] Those skilled in the art will appreciate that the electronic device 700 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 710 through a power management system, thereby implementing functions such as managing 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 described in detail here.

[0139] The processor 710 is used to receive a first input and, according to the first input, energize the liquid crystal adjustment unit. 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. The polarization directions of the first polarization state and the second polarization state are the same.

[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 a 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 part of the light-emitting layer faces the liquid crystal adjustment part, and the second part of the light-emitting layer does not face the liquid crystal adjustment part. In the fingerprint unlocking mode or the fingerprint payment mode, the brightness of the first part of the light-emitting layer is greater than the brightness of the second part, that is, the area corresponding to the optical fingerprint sensor in the display component is in a highlighted mode, which serves as a prompt to the user and facilitates the user to realize the fingerprint unlocking function or the fingerprint payment function.

[0145] It should be understood that in the embodiment of the present application, the input unit 704 may include a graphics processor (Graphics Processing Unit, GPU) 7041 and a microphone 7042, and the graphics processor 7041 processes the image data of the static picture or action file obtained by the image capture device (such as a camera) in the action file capture mode or the 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 a joystick, 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, an application program or instructions required for at least one function (such as a sound playback function, an image playback function, etc.), 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] The processor 710 may include one or more processing units; optionally, the processor 710 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the 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, wherein 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 term "comprises", "includes" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, device, article or device including a series of elements includes not only those elements, but also includes 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 "includes one..." does not exclude the presence of other identical elements in the process, device, article or device including the element. In addition, it should be noted that the scope of the devices and apparatuses 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 reverse order according to the functions involved, for example, the described device 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 implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment device can be implemented by means of software plus a necessary general hardware platform, and of course it 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, disk, CD), including a number of instructions for a terminal (which can be a mobile phone, computer, server, or network equipment, etc.) to execute the device 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 the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A display component, characterized in that: include: Luminescent layer; an optical fingerprint sensor, located on a first side of the light emitting layer; a circular polarizer assembly, located at 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, wherein the circular polarizer assembly comprises a linear polarizer and a liquid crystal adjustment portion, wherein 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, and the light emitted by the light-emitting layer and emitted through the linear polarizer is in a first polarization state; Wherein, when the liquid crystal adjustment part is powered on, after the light emitted by the light-emitting layer and emitted through the linear polarizer is reflected by an object, the light incident on the linear polarizer from 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, characterized in that 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 in a linear polarization state; 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 in a circular polarization state; or, When the liquid crystal adjustment section is powered on, the light emitted by the light-emitting layer and emitted through the liquid crystal adjustment section is circularly polarized; when the liquid crystal adjustment section is not powered on, the light emitted by the light-emitting layer and emitted through the liquid crystal adjustment section is linearly polarized.

3. The display assembly according to claim 1 or 2, characterized in that: The circular polarizer assembly also 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 delay plate is located on the side of the linear polarizer away from the first phase delay plate, the liquid crystal adjustment part and the second phase delay plate are located on the same layer, in a first direction, the liquid crystal adjustment part and the second phase delay plate 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 delay plate and the projection of the optical fingerprint sensor on the light-emitting layer do not overlap.

4. The display assembly according to claim 1 or 2, characterized in that: The circular polarizer assembly also 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 unit is arranged on a side of the second phase retarder away from the linear polarizer.

5. The display assembly according to claim 4, characterized in that: The display assembly further comprises: A light-transmitting layer is connected to the liquid crystal adjustment unit, and the light-transmitting layer is arranged on a side of the second phase delay plate 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, and the light-transmitting layer and the projections 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; Wherein, when the liquid crystal adjustment part is not powered on, the liquid crystal adjustment part is used to convert the light emitted by the light-emitting layer and emitted through the liquid crystal adjustment part from a linear polarization state to a circular polarization state, and to convert the light reflected by an object and passing through the liquid crystal adjustment part 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 least partially overlap, and in a fingerprint unlocking mode or a fingerprint payment mode, a brightness of the first portion is greater than a brightness of the second portion.

8. An electronic device, characterized in that: include: Frame; The display component according to any one of claims 1 to 7, wherein the display component 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; According to the first input, the liquid crystal adjustment unit is powered on; 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. 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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