Method for receiving fingerprint data by electronic device and electronic device

Abstract

The invention provides a fingerprint data receiving method of an electronic device and the electronic device. The electronic device comprises a touch unit, a display unit and a sensing unit. The display unit includes a plurality of display pixels including at least a plurality of blue pixels, a plurality of green pixels, and a plurality of red pixels. The method comprises the following steps: receiving a finger touch signal through the touch unit; the method comprises the following steps: determining a finger touch area in a touch unit according to a finger touch signal; the method comprises the following steps: closing a plurality of blue pixels in a first area in the display unit, wherein the first area is overlapped with the finger touch area. The method includes receiving fingerprint data through a sensing unit. The method includes closing a plurality of blue pixels in a second area in the display unit, wherein the second area is adjacent to the first area.

Description

[0001] This application is a divisional application of an invention patent application filed on March 03, 2020, with application number 202010138832.5, and invention name “Method for an electronic device to receive fingerprint data”. Technical Field

[0002] The present disclosure relates to a method for an electronic device to receive fingerprint data and an electronic device, and more particularly to a method and an electronic device for a fingerprint authentication process. Background Art

[0003] Fingerprint authentication has been widely used in electronic devices such as smart phones. However, the accuracy or sensitivity of fingerprint authentication in electronic devices needs to be improved. Summary of the invention

[0004] According to some embodiments of the present disclosure, a method for an electronic device to receive fingerprint data is provided. The electronic device includes a touch unit, a display unit and a sensing unit. The display unit includes a plurality of display pixels, and the plurality of display pixels include at least a plurality of blue pixels, a plurality of green pixels and a plurality of red pixels. The method includes: receiving a finger touch signal through the touch unit. The method includes: determining a finger touch area in the touch unit according to the finger touch signal. The method includes: turning off a plurality of blue pixels in a first area in the display unit, wherein the first area overlaps with the finger touch area. The method includes: receiving fingerprint data through the sensing unit. The method includes: turning off a plurality of blue pixels in a second area in the display unit, wherein the second area is adjacent to the first area.

[0005] According to some embodiments of the present disclosure, an electronic device is provided. The electronic device includes a display unit, a touch unit and a sensing unit. The display unit includes a plurality of display pixels. The touch unit receives a first signal and includes a plurality of touch pixels, wherein the touch unit overlaps with the display unit. The sensing unit receives a second signal different from the first signal and includes a plurality of sensing pixels. The sensing unit overlaps with the touch unit and the display unit, and the display unit is disposed between the touch unit and the sensing unit. The density of the plurality of touch pixels is less than the density of the plurality of display pixels. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein:

[0007] Figure 1 is a flowchart of an electronic device receiving fingerprint data according to some embodiments of the present disclosure.

[0008] Figure 2is a functional block included in an electronic device according to some embodiments of the present disclosure.

[0009] FIG. 3A to FIG. 3D is a cross-sectional view of various stages of a process in which an electronic device receives fingerprint data according to some embodiments of the present disclosure.

[0010] FIG. 4A to FIG. 4C is a cross-sectional view of an electronic device according to some embodiments of the present disclosure.

[0011] Figure 5 is a flowchart of an electronic device receiving fingerprint data according to some embodiments of the present disclosure.

[0012] Figure 6 is a cross-sectional view of one of the stages of an electronic device receiving fingerprint data according to some embodiments of the present disclosure.

[0013] Figure 7 is a three-dimensional diagram of an electronic device according to some embodiments of the present disclosure.

[0014] Figure 8 is a flowchart of an electronic device receiving fingerprint data according to some embodiments of the present disclosure.

[0015] Fig. 9 is a cross-sectional view of one of the stages of an electronic device receiving fingerprint data according to some embodiments of the present disclosure.

[0016] Fig.10 is a three-dimensional diagram of an electronic device according to some embodiments of the present disclosure.

[0017] Fig.11A and Fig. 11B is an example of how to define a finger touch area according to some embodiments of the present disclosure.

[0018] Fig.12 is an example of how to define the first region according to some embodiments of the present disclosure.

[0019] Fig.13 is a flowchart of an electronic device receiving fingerprint data according to some embodiments of the present disclosure.

[0020] Fig.14A and Fig. 14B is a top view of an electronic device according to some embodiments of the present disclosure.

[0021] Explanation of symbols

[0022] 10 fingers;

[0023] 10' finger contact area;

[0024] 100A method;

[0025] 100B method;

[0026] 100C method;

[0027] 100D method;

[0028] 102 steps;

[0029] 104 steps;

[0030] 106 steps;

[0031] 108 steps;

[0032] 110 steps;

[0033] 110' steps;

[0034] 112 steps;

[0035] 114 steps;

[0036] 116 steps;

[0037] 118 steps;

[0038] 120 steps;

[0039] 122 steps;

[0040] 20 finger touch area;

[0041] 200 Electronic devices;

[0042] 210 main controller;

[0043] 220 touch unit;

[0044] 222 touch pixels;

[0045] 222A activated touch pixel;

[0046] 222B: unactivated touch pixel;

[0047] 230 display unit;

[0048] 232 display pixels;

[0049] 232B blue pixels;

[0050] 232G green pixels;

[0051] 232IR infrared pixels;

[0052] 232R red pixels;

[0053] 240 sensing unit;

[0054] 242 sensing pixels;

[0055] 250 substrate;

[0056] 260 Overlay;

[0057] 270 middle layer;

[0058] 280 infrared light source;

[0059] 30 first area;

[0060] 40 Sensing area;

[0061] 50 Second Area;

[0062] 70 fingerprint authentication area;

[0063] 80 active area;

[0064] L light. DETAILED DESCRIPTION

[0065] The electronic device of the present disclosure is described in detail in the following description. In the following detailed description, for the purpose of explanation, many specific details and embodiments are described in order to provide a thorough understanding of the present disclosure. However, it will be understood that the exemplary embodiments described herein are for illustrative purposes only, and the inventive concept can be implemented in various forms without being limited to these exemplary embodiments. In addition, the drawings of different embodiments may use similar and / or corresponding reference numerals to represent similar and / or corresponding elements. However, in the drawings of different embodiments, the use of similar and / or corresponding reference numerals does not imply any correlation between different embodiments. In addition, in this specification, expressions such as "a first material layer disposed above / on / above a second material layer" may represent direct contact between the first material layer and the second material layer, or it may represent a non-contact state with one or more intermediate layers between the first material layer and the second material layer. In the above case, the first material layer may not directly contact the second material layer.

[0066] In addition, in this specification, relative expressions are used. For example, "below" or "lower" are used to describe the position of one element relative to another element. It should be understood that if the device is turned upside down, the element located on the "bottom" will become the element located on the "top".

[0067] It should be understood that, although the terms first, second, third, etc. can be used herein to describe various elements, components, regions, layers, parts and / or sections, these elements, components, regions, layers, parts and / or sections should not be limited to these terms. These terms are only used to distinguish one element, component, region, layer, part or section from another element, component, region, layer, part or section. Therefore, the first element, component, region, layer, part or section discussed below can be referred to as the second element, component, region, layer, part or section without departing from the teachings of the present disclosure.

[0068] It should be understood that this description of exemplary embodiments is intended to be read in conjunction with the accompanying drawings, which are to be considered part of the entire written description. The drawings are not drawn to scale. In addition, structures and devices are shown schematically to simplify the drawings. In the drawings, some components may be omitted for clarity. Furthermore, as another embodiment of the present disclosure, some components in the drawings may be removed.

[0069] The terms "about" and "substantially" typically mean + / -20% of the value, more typically + / -10% of the value, more typically + / -5% of the value, more typically + / -3% of the value, more typically + / -2% of the value, more typically + / -1% of the value, and even more typically + / -0.5% of the value. The values ​​disclosed herein are approximate. When not specifically stated, the values ​​include the meanings of "about" and "substantially". Furthermore, when considering process deviations or fluctuations, the term "same" may also include the meanings of "about" and "substantially".

[0070] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those of ordinary skill in the art to which this disclosure belongs. It should be understood that these terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the background or context of the relevant technology and the present disclosure, and should not be interpreted in an idealized or overly formal manner unless specifically defined in the embodiments of the present disclosure.

[0071] Additionally, in some embodiments of the present disclosure, terms regarding attachment, coupling, and similar terms, such as “connected” and “interconnected,” refer to a relationship in which structures are fixed or attached to each other, directly or indirectly through intermediate structures, as well as a movable or rigid attachment or relationship between the two, unless expressly stated otherwise.

[0072] The term "substrate" may include elements and films formed on the substrate, and may include a plurality of active elements, such as transistors. For simplicity, the description is made in the context of a plate-like substrate.

[0073] In addition, the term "a range from a first value to a second value" means that the range includes the first value, the second value, and other values ​​therebetween.

[0074] refer to Figure 1 , which shows a flow chart of a method 100A for an electronic device 200 to receive fingerprint data according to some embodiments of the present disclosure. Figure 2 As shown, the electronic device 200 may include a main controller 210, a touch unit 220, a display unit 230, and a sensing unit 240. The main controller 210 may include, but is not limited to, an integrated circuit (IC) or a central processing unit (CPU). During the fingerprint authentication process, the main controller 210 calculates the signals received from the touch unit 220, the display unit 230, and the sensing unit 240, and outputs the calculated signals to the touch unit 220, the display unit 230, and the sensing unit 240, respectively.

[0075] The method 100A begins by entering a fingerprint authentication process in step 102. Next, the method 100A includes step 104, receiving a finger touch signal through the touch unit, and then step 106, determining a finger touch area in the touch unit according to the finger touch signal. Figure 3A , which shows a cross-sectional view of the electronic device 200 and may correspond to step 104 and step 106 .

[0076] like Figure 3A As shown, the electronic device 200 may include a substrate 250. The substrate 250 may include a glass substrate, a ceramic substrate, a polymer substrate, or other suitable substrates. In addition, the substrate 250 may include a plurality of active components (not shown) and passive components (not shown) disposed on the plurality of active components.

[0077] The electronic device 200 includes a sensing unit 240 and a display unit 230, which are disposed on a substrate 250. The positions of the sensing unit 240 and the display unit 230 are interchangeable. Figure 3AThe display sensing unit 240 and the display unit 230 are located at different layers. For example, the sensing unit 240 may be disposed on the display unit 230. However, the present disclosure is not limited thereto. The display unit 230 may include a plurality of display pixels 232. The display pixel 232 may include, but is not limited to, a plurality of blue pixels, red pixels, green pixels and / or infrared pixels. The display pixel 232 may include a light emitting diode (LED) or an organic light emitting diode (OLED), which may emit light having different wavelength ranges. In some examples, the light emitting diode may include a sub-millimeter light emitting diode (mini light-emitting diode) and / or a micro light emitting diode (micro light-emitting diode). However, the present disclosure is not limited thereto. The sensing unit 240 may include a plurality of sensing pixels 242. The sensing pixel 242 may include, but is not limited to, a P-type-intrinsic-N-type diode (PIN diode), which includes two semiconductor layers and an undoped intrinsic semiconductor region disposed therebetween. In some embodiments, the sensing unit 240 may be used to receive a signal of light reflected from the finger 10. In some embodiments, the sensing pixels 242 and the display pixels 232 may be disposed in the same layer.

[0078] The electronic device 200 may include an intermediate layer 270, which is located between the touch unit 220 and the display unit 230. The intermediate layer 270 may include components according to the needs of the electronic device 200. For example, the intermediate layer 270 may include, but is not limited to, a liquid crystal layer, a polyimide layer, a common electrode, a pixel electrode, an encapsulation layer for the display unit 230, or other appropriate components. The touch unit 220 may be disposed on the intermediate layer 270. The touch unit 220 may include a plurality of touch pixels 222. It should be understood that the sizes of the touch pixels 222, the display pixels 232, and the sensing pixels 242 are only examples and are not limited thereto. In some embodiments, one touch pixel 222 may cover hundreds or thousands of display pixels 232 and / or sensing pixels 242.

[0079] In addition, the electronic device 200 may further include a covering layer 260, which is disposed on the touch unit 220. The covering layer 260 may be used as the layer touched by the finger 10. The material of the touch unit 220 may include, but is not limited to, metal, metal oxide, other appropriate materials or combinations thereof.

[0080] like Figure 3AAs shown, when the finger 10 touches the electronic device 200, the electronic device 200 can receive the finger touch signal through the touch unit 220. If the electronic device 200 fails to receive the finger touch signal, the steps of the method 100A will return to step 102 and enter the fingerprint authentication process. After the electronic device 200 receives the finger touch signal, the main controller 210 processes the finger touch signal and determines the finger touch area 20 in the touch unit 220, such as Figure 3A shown.

[0081] Next, step 108 is executed to determine the first area in the display unit according to the finger touch area. After determining the finger touch area 20, the main controller 210 can define the first area 30 in the display unit 230 according to the finger touch area 20, such as Figure 3B How to define the finger touch area 20 and the first area 30 will be discussed in detail below. In some embodiments, the area of ​​the first area 30 may be greater than or equal to the area of ​​the finger touch area 20.

[0082] Next, step 110 is performed to turn off a plurality of blue pixels located in the first area. Figure 3C , which shows the status of different pixels in step 110. It should be understood that some elements will be shown in FIG. Figure 3C In some embodiments, when the display pixel 232 of the display unit 230 may include a plurality of red pixels 232R, green pixels 232G, and blue pixels 232B, at least one of the blue pixels 232B located in the first area 30 is turned off in step 110. In addition, at least one of the red pixel 232R and / or the green pixel 232G located in the first area 30 emits light L. In this embodiment, the blue pixel, the red pixel, and the green pixel located outside the first area 30 may be turned on and / or off, and the present disclosure is not limited thereto.

[0083] Next, step 112 is executed to receive fingerprint data through the sensing unit. Figure 3D As shown, after the light L is emitted, the light L may be incident on the finger 10 and then reflected into the sensing pixel 242, so that the sensing pixel 242 may receive the fingerprint data. The fingerprint data received by the sensing pixel 242 may be applied to identity authentication.

[0084] In some embodiments, due to the lower transmission speed or higher scattering power of blue light in the dielectric layer, blue light causes a lower signal-to-noise ratio in the step of the sensing unit receiving fingerprint data. In embodiments where the blue pixels located in the first area are turned off during the sensing unit receiving fingerprint data, the signal-to-noise ratio can be reduced. In some embodiments, the area of ​​the first area is greater than or equal to the area of ​​the finger touch area so that more pixels, such as red pixels and / or green pixels, can provide more light for signal enhancement.

[0085] Next, step 114 is executed to confirm whether the fingerprint authentication is completed. If the fingerprint authentication is completed, step 116 will be executed. If not completed, the steps of method 100A will return to step 110 to turn off the multiple blue pixels located in the first area. In other words, as long as the finger 10 touches the electronic device 200, step 112 of receiving fingerprint data can be repeated until the system comparison meets the current authentication regulations, and the fingerprint authentication can be completed. In step 116, after the fingerprint authentication is completed, the display unit 230 will return to the normal display mode.

[0086] In some embodiments, before entering step 102 of the fingerprint authentication process, the display unit 230 may be displayed, but it is not limited thereto. The plurality of display pixels 232 of the display unit 230 may receive a command and be driven to display an image. In other words, the plurality of display pixels 232 of the display unit 230 in the first area 30 may be in an on state before entering the fingerprint authentication process, and may be driven to acquire an image according to a command of the main controller 210. For example, before entering the fingerprint authentication process, the display pixels 232 may be commanded to display a cyan-colored object, so that only the green pixels and the blue pixels are driven at high brightness, while the red pixels are driven at low brightness.

[0087] In other embodiments, before step 102, the blue pixels in the first area 30 may be in a closed state. The blue pixels may remain in a closed state. In another embodiment, before step 102, the red pixels and the green pixels in the first area 30 may be in a closed state. For example, in step 108 or step 110, the red pixels and / or the green pixels in the first area 30 may be turned on for the fingerprint authentication process, but it is not limited thereto.

[0088] Many variations and / or modifications may be made to the embodiments of the present disclosure. FIG. 4A to FIG. 4C , which shows a cross-sectional view of an electronic device 200 according to some embodiments of the present disclosure. It should be understood that for better understanding, some components will be FIG. 4A to FIG. 4C omitted and / or simplified.

[0089] In some embodiments, the electronic device may include a plurality of infrared pixels 232IR, such as Figure 4A As shown. In this embodiment, when step 110 is performed, the infrared pixel 232IR located in the first area 30 is turned on and the blue pixel 232B is turned off. In some embodiments, the infrared pixel 232IR may be disposed in at least a portion of the display unit 230. For example, there may be no infrared pixel 232IR in some portions of the display unit 230. In addition, in this embodiment, at least one of the red pixel 232R and the green pixel 232G located in the first area 30 may be turned on and / or off, and the infrared pixel, blue pixel, red pixel, and green pixel located outside the first area 30 may be turned on and / or off, and the present disclosure is not limited thereto.

[0090] In some embodiments, the electronic device 200 may include an infrared light source 280, such as Figure 4B As shown. The infrared light source 280 may be disposed under the substrate 250. For example, the infrared light source 280 may be disposed on a surface of the substrate 250 away from the display unit 230. The infrared light source 280 may be, but is not limited to, a light emitting diode that emits infrared light. In this embodiment, when step 110 is performed, the infrared light source 280 is turned on, and the blue pixel 232B located in the first area 30 is turned off.

[0091] In some embodiments, the infrared light source 280 may be disposed on a side surface of the cover layer 260, such as Figure 4C In this embodiment, when step 110 is executed, the infrared light source 280 is turned on, and the blue pixel 232B located in the first area 30 is turned off.

[0092] refer to Figure 5 , showing a flow chart of a method 100B for receiving fingerprint data by an electronic device 200 according to some embodiments of the present disclosure. In some embodiments, one of the differences between method 100A and method 100B is that method 100B further includes step 118, determining a sensing area in a sensing unit according to a finger touch area. Step 118 may be performed after determining the first area 30 in the display unit 230. In some embodiments, step 118 may be performed after turning off the blue pixel 232B located in the first area 30.

[0093] refer to Figure 6 , which corresponds to step 118. After determining the finger touch area 20, the main controller 210 defines the sensing area 40 in the sensing unit 240 according to the finger touch area 20. After determining the sensing area 40, the sensing pixels 242 in the sensing area 40 may be turned on. The turned-on sensing pixels 242 may receive the fingerprint data, while the unturned-on sensing pixels 242 may not receive the fingerprint data.

[0094] refer to Figure 7, which shows a three-dimensional diagram of the electronic device 200 in the step of determining the sensing area 40 according to some embodiments of the present disclosure. In some embodiments, the area of ​​the first area 30 may be greater than or equal to the area of ​​the sensing area 40. In some embodiments, the area of ​​the sensing area 40 may be greater than or equal to the area of ​​the finger touch area 20. When light emitted from the display pixel 232 is incident on the finger 10, the light may be reflected inside and / or outside the finger touch area 20 and return to the sensing pixel 242. Therefore, when the area of ​​the sensing area 40 is greater than or equal to the area of ​​the finger touch area 20, it can help to increase the sensitivity of receiving fingerprint data. In addition, when the area of ​​the sensing area 40 is greater than or equal to the area of ​​the finger touch area 20, the acquired fingerprint data may include a larger fingerprint area, which may provide more features to be authenticated. In other words, the security of the fingerprint sensor can be increased.

[0095] refer to Figure 8 , which shows a flow chart of a method 100C for receiving fingerprint data by an electronic device 200 according to some embodiments of the present disclosure. In some embodiments, one of the differences between the method 100A and the method 100C is that the method 100C further includes step 120, determining a second area in the display unit according to the finger touch area. Step 120 may be performed after determining the first area 30 in the display unit 230 and before turning off the blue pixel 232B.

[0096] like Fig. 9 As shown, after determining the first area 30, the main controller 210 may define the second area 50 according to the first area 30. After determining the second area 50, step 110' is performed to turn off the blue pixels 232B located in the first area 30 and the second area 50. Fig. 9 As shown, the second region 50 can be adjusted to the first region 30 .

[0097] In some embodiments, in step 110', the red pixel 232R, the green pixel 232G, and the blue pixel 232B located in the second area 50 may be turned off. In other embodiments, when the display unit 230 includes the red pixel 232R, the green pixel 232G, the blue pixel 232B, and the infrared pixel 232IR, during step 110', the infrared pixel 232IR located in the first area 30 may be turned on. During step 110', the infrared pixel 232IR located in the second area 50 may not be turned on. In this embodiment, the difference between the first area 30 and the second area 50 is that the display unit 230 in the first area 30 emits light used as a light source, and whether the display unit 230 in the second area 50 emits light may depend on demand. In some embodiments, when the electronic device 200 includes an infrared light source 280, whether the display unit 230 in the first area 30 and / or the second area 50 emits light may depend on demand.

[0098] refer to Fig.10 , which shows a three-dimensional image of the electronic device 200 in the step of determining the second area 50 according to some embodiments of the present disclosure. In some embodiments, the second area 50 can be adjusted to the first area 30. Since more blue pixels (e.g., blue pixels located in the second area 50) are turned off, less blue light is incident or scattered to the sensing unit 240, thereby increasing the signal-to-noise ratio or the sensitivity of receiving fingerprint data.

[0099] refer to Fig.11A and Fig. 11B , which shows an example of how to define the finger touch area 20 according to some embodiments of the present disclosure. Fig.11A As shown, when the finger contact area 10' overlaps with the 3Δ3 matrix of touch pixels 222, these touch pixels 222 can be considered as activated touch pixels 222A. When the activated touch pixels 222A are determined, the main controller 210 can process the signals from the activated touch pixels 222A, and then calculate the area based on the activated touch pixels 222A. Then, the main controller 210 defines the area as the finger touch area 20. For example, when the area of ​​the activated touch pixels 222A is a 3Δ3 matrix, the finger touch area 20 can be determined as a 3×3 matrix of activated touch pixels 222A.

[0100] In some examples, when the finger contact area 10' overlaps the 6×5 matrix of touch pixels 222, the 6×5 matrix of touch pixels 222 will be activated. Fig. 11BAs shown, there are some unactivated touch pixels 222B that are not activated due to moisture or dust. In this case, the finger touch area 20 can be determined by using the outermost boundaries of the activated touch pixels 222A. For example, if more than 90% of the outermost boundaries of the 6×5 matrix of touch pixels 222 are activated, the finger touch area 20 can be determined as the 6×5 matrix area of ​​the touch pixels 222.

[0101] refer to Fig.12 , which shows an example of how to define the first area 30 according to some embodiments of the present disclosure. When the finger touch area 20 is determined, the main controller 210 may process the received signal from the finger touch area 20. Then, the main controller 210 determines the area in the display unit 230 according to the finger touch area 20. In some embodiments, the area of ​​the finger touch area 20 projected on the display unit 230 may be substantially the same as the area of ​​the area. The display pixels 232 in the area may overlap with the touch pixels 222. The term "overlap" may include "partial overlap" and "overall overlap".

[0102] After determining the region 60, the first region 30 may be determined based on the region 60. For example, if the area of ​​the region 60 is an M×N matrix, the first region 30 may be defined as, but not limited to, a (M+X)×(N+X) matrix, where 0≦X≦5. In other embodiments, the first region 30 is equal to the region 60 plus one or more adjacent surrounding display pixels 232 of the display unit 230. If the area of ​​the region 60 is an M×N matrix, the first region 30 may be defined as, but not limited to, a (M+X)×(N+X) matrix, where 1≦X≦5.

[0103] The second area 50 may be defined in a similar manner. For example, the second area 50 is equal to the first area 30 plus one or more Y adjacent surrounding display pixels 232 of the display unit 230. The number Y may be in the range of 1 to 5 (1≦Y≦5), but is not limited thereto.

[0104] The step of determining the finger touch area 20 , the first area 30 , the sensing area 40 and / or the second area 50 by the main controller 210 may include additional steps. The present disclosure is not limited thereto.

[0105] refer to Fig.13 , showing a flow chart of a method 100D for receiving fingerprint data by the electronic device 200 according to some embodiments of the present disclosure. In some embodiments, one of the differences between the method 100A and the method 100D is that the method 100D further includes step 122, displaying the fingerprint authentication area 70. Step 122 may be performed after entering the fingerprint authentication process and before receiving a finger touch signal through the touch unit 220.

[0106] refer to Fig.14A and Fig. 14B , which shows a top view of the electronic device 200 according to some embodiments of the present disclosure. In some embodiments, the electronic device 200 may display a fingerprint authentication area 70, which is used as an area to indicate the touch of the finger 10 during the fingerprint authentication process. Fig. 14B As shown, after the finger 10 touches the fingerprint authentication area 70, the first area 30 can be defined. In this embodiment, the area outside the first area 30 and within the fingerprint authentication area 70 can be defined as the second area 50. In other embodiments, there can be at least one area set between the boundary of the second area 50 and the fingerprint authentication area 70. In this embodiment, the infrared pixel 232IR can be set within the fingerprint authentication area 70.

[0107] In some embodiments, there may be no fingerprint authentication area 70. In this embodiment, the entire active area 80 of the electronic device 200 may be used as the fingerprint authentication area. However, the present disclosure is not limited thereto.

[0108] Although the embodiments of the present disclosure and their advantages have been described in detail, it should be understood that various changes, substitutions and modifications may be made without departing from the spirit and scope of the present disclosure as defined in the appended claims. For example, it will be readily understood by those skilled in the art that many of the features, functions, processes and materials described herein may be varied while still within the scope of the present disclosure. In addition, the scope of the present application is not limited to the processes, machines, manufactures, material compositions, means, methods and steps of the specific embodiments described in the specification. As will be readily understood by those skilled in the art from the disclosure of the present disclosure, processes, machines, manufactures, material compositions, means, methods or steps that exist or will be developed today that perform substantially the same functions as the corresponding embodiments described herein or achieve substantially the same results may be used according to the present disclosure. Therefore, the appended claims are intended to include such processes, machines, manufactures, material compositions, means, methods or steps within their scope. The features between the embodiments may be mixed and matched as desired as long as they do not violate the spirit of the invention or conflict with each other.

Claims

1. A method for an electronic device to receive fingerprint data, the electronic device comprising a touch unit, a display unit and a sensing unit, the display unit comprising a plurality of display pixels, the plurality of display pixels comprising at least a plurality of blue pixels, a plurality of green pixels and a plurality of red pixels, the method comprising: Receiving a finger touch signal through the touch unit; Determine a finger touch area in the touch unit according to the finger touch signal; Turning off the plurality of blue pixels in a first area of ​​the display unit, wherein the first area overlaps with the finger touch area; receiving the fingerprint data through the sensing unit; as well as The plurality of blue pixels located in a second area in the display unit are turned off, wherein the second area is adjacent to the first area.

2. The method according to claim 1, characterized in that The area of ​​the first region is greater than or equal to the area of ​​the finger touch region.

3. The method according to claim 1, characterized in that Also includes: A sensing area in the sensing unit is determined according to the finger touch area.

4. The method according to claim 3, characterized in that The area of ​​the sensing region is greater than or equal to the area of ​​the finger touch region.

5. The method according to claim 4, characterized in that The area of ​​the sensing region is smaller than or equal to the area of ​​the first region.

6. An electronic device, characterized in that: include: A display unit including a plurality of display pixels; A touch unit receives a first signal and includes a plurality of touch pixels, wherein the touch unit overlaps with the display unit; as well as A sensing unit receives a second signal different from the first signal and includes a plurality of sensing pixels. The sensing unit overlaps with the touch unit and the display unit, and the display unit is disposed between the touch unit and the sensing unit. Wherein, the density of the plurality of touch pixels is smaller than the density of the plurality of display pixels.

7. The electronic device according to claim 6, wherein: The density of the touch pixels is less than the density of the sensing pixels.

8. The electronic device as claimed in claim 6, characterized in that: The invention also comprises a covering layer which is arranged on the touch control unit.

9. The electronic device as claimed in claim 6, characterized in that: The invention also comprises an intermediate layer, which is arranged between the display unit and the touch control unit.

10. The electronic device according to claim 9, wherein: The intermediate layer includes a packaging layer.

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