TW202107335A

TW202107335A - Electronic device and brightness control method of display using optical fingerprint recognition

Info

Publication number: TW202107335A
Application number: TW108128001A
Authority: TW
Inventors: 張郁旼
Original assignee: 宏碁股份有限公司
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2021-02-16

Abstract

An electronic device is provided. The electronic device includes: a display panel; an optical fingerprint sensor integrated underneath the display; a sensor apparatus configured to detect inertial information of the electronic device and touch information of the display panel; and a processing unit configured to execute a fingerprint recognition application to set the electronic device to enter a fingerprint-matching mode. When the display panel is in a deactivated status in the fingerprint-matching mode, the processing unit determines whether a user is to perform a fingerprint recognition operation using the optical fingerprint sensor. When it is determined to perform the fingerprint recognition operation, the processing unit display a fingerprint login icon on a fingerprint press region of the display panel, and set the fingerprint press region to a high-brightness display mode for the optical fingerprint sensor to capture a fingerprint image of the user.

Description

電子裝置及使用光學指紋辨識的螢幕亮度控制方法Electronic device and screen brightness control method using optical fingerprint recognition

本發明係有關於指紋辨識，特別是有關於一種電子裝置及使用光學指紋辨識的螢幕亮度控制方法。The present invention relates to fingerprint recognition, in particular to an electronic device and a method for controlling the brightness of a screen using optical fingerprint recognition.

隨著科技進步，在可攜式電子裝置中設置螢幕下指紋辨識裝置。在傳統的可攜式電子裝置中，往往需要將整個顯示螢幕設定為高亮度模式，使得螢幕下的光學式指紋辨識裝置可擷取到影像品質較佳的使用者指紋影像。然而，傳統的可攜式電子裝置並無法準確地判斷使用者何時要使用光學式指紋辨識裝置以進行指紋驗證或指紋註冊，進而長時間讓整個顯示螢幕處於高亮度模式，使得顯示螢幕的壽命降低。With the advancement of technology, under-screen fingerprint recognition devices are installed in portable electronic devices. In traditional portable electronic devices, it is often necessary to set the entire display screen to a high-brightness mode, so that the optical fingerprint recognition device under the screen can capture user fingerprint images with better image quality. However, traditional portable electronic devices cannot accurately determine when a user will use an optical fingerprint recognition device for fingerprint verification or fingerprint registration, which keeps the entire display screen in a high-brightness mode for a long time, which reduces the life of the display screen. .

因此，需要一種電子裝置及用於光學指紋辨識的螢幕亮度控制方法以解決上述問題。Therefore, there is a need for an electronic device and a screen brightness control method for optical fingerprint recognition to solve the above-mentioned problems.

本發明係提供一種電子裝置。電子裝置包括：一顯示面板；一光學式指紋感測器，其係整合至該顯示面板下方；一感測裝置，用以偵測該電子裝置之慣性資訊及該觸控螢幕之觸碰資訊；以及一處理單元，用以執行一指紋辨識應用程式以讓該電子裝置進入一指紋匹配模式。當顯示面板在指紋匹配模式中處於關閉狀態時，處理單元係依據慣性資訊及觸碰資訊以判斷一使用者是否欲使用光學式指紋感測器進行一指紋辨識操作。當處理單元判斷使用者欲使用該光學式指紋感測器進行指紋辨識操作時，處理單元係在顯示面板上關於光學式指紋感測器之一指紋按壓區域顯示一指紋登入圖示，並將指紋按壓區域設定為高亮度顯示模式並使光學指紋感測器擷取使用者之一指紋影像。The invention provides an electronic device. The electronic device includes: a display panel; an optical fingerprint sensor integrated under the display panel; a sensing device for detecting inertial information of the electronic device and touch information of the touch screen; And a processing unit for executing a fingerprint recognition application to allow the electronic device to enter a fingerprint matching mode. When the display panel is closed in the fingerprint matching mode, the processing unit determines whether a user wants to use the optical fingerprint sensor to perform a fingerprint recognition operation based on the inertial information and the touch information. When the processing unit determines that the user intends to use the optical fingerprint sensor to perform fingerprint recognition operations, the processing unit displays a fingerprint login icon on a fingerprint pressing area of the optical fingerprint sensor on the display panel, and displays the fingerprint The pressing area is set to a high-brightness display mode and the optical fingerprint sensor captures a fingerprint image of the user.

在一些實施例中，感測裝置包括：一近接感測器，用以偵測該電子裝置與該使用者之一距離資訊；一加速度計，用以偵測該電子裝置之加速度及位移；一陀螺儀，用以偵測該電子裝置之方向。慣性資訊包括電子裝置之該加速度、該位移及該方向；以及複數個觸碰感測器，設置於該顯示面板之複數個邊緣上，用以偵測使用者接觸該顯示面板之一觸碰資訊以及該使用者之手指之一懸浮動作。In some embodiments, the sensing device includes: a proximity sensor for detecting distance information between the electronic device and the user; an accelerometer for detecting acceleration and displacement of the electronic device; The gyroscope is used to detect the direction of the electronic device. The inertial information includes the acceleration, the displacement and the direction of the electronic device; and a plurality of touch sensors, which are arranged on a plurality of edges of the display panel, to detect the touch information of a user touching one of the display panels And a floating motion of the user's finger.

在一些實施例中，處理單元更依據觸碰資訊判斷是否使用者之手部觸碰顯示面板之該等邊緣的數量是否達到一預定數量及分布，其中，當觸碰該顯示面板之該等邊緣的數量達到該預定數量及分布，該處理單元係判斷該距離資訊是否大於一預定值、且該電子裝置之一傾斜角度是否在一預定操作範圍、且該顯示面板之表面是否朝上。當觸碰顯示面板之邊緣的數量未達到預定數量，處理單元係將顯示面板維持在關閉狀態。In some embodiments, the processing unit further determines whether the number of the edges of the display panel is reached a predetermined number and distribution according to the touch information, wherein when the edges of the display panel are touched When the number reaches the predetermined number and distribution, the processing unit determines whether the distance information is greater than a predetermined value, whether an inclination angle of the electronic device is within a predetermined operating range, and whether the surface of the display panel faces upward. When the number of touching the edges of the display panel does not reach the predetermined number, the processing unit maintains the display panel in a closed state.

在一些實施例中，上述觸碰感測器為電容式觸感測器。當在光學指紋感測器之區域內的觸碰感測器偵測到電容值由高變低時，處理單元係判斷使用者之手指係由上往下進行懸浮動作。當處理單元判斷距離資訊大於預定值、且電子裝置之傾斜角度在預定操作範圍、且顯示面板之表面朝上時，處理單元係在顯示面板上關於光學式指紋感測器之指紋按壓區域顯示指紋登入圖示，並將指紋按壓區域設定為高亮度顯示模式並使光學指紋感測器擷取使用者之指紋影像。In some embodiments, the aforementioned touch sensor is a capacitive touch sensor. When the touch sensor in the area of the optical fingerprint sensor detects that the capacitance value changes from high to low, the processing unit determines that the user's finger is floating from top to bottom. When the processing unit determines that the distance information is greater than the predetermined value, and the tilt angle of the electronic device is within the predetermined operating range, and the surface of the display panel faces upward, the processing unit displays the fingerprint on the display panel with respect to the fingerprint pressing area of the optical fingerprint sensor Login icon, and set the fingerprint pressing area to high-brightness display mode and enable the optical fingerprint sensor to capture the user's fingerprint image.

在一些實施例中，當觸碰顯示面板之邊緣的數量達到2且包含兩個相鄰邊緣或兩個相對邊緣，處理單元係判斷觸碰顯示面板之邊緣的數量達到預定數量及分布。In some embodiments, when the number of touched edges of the display panel reaches 2 and includes two adjacent edges or two opposite edges, the processing unit determines that the number of touched edges of the display panel reaches a predetermined number and distribution.

在一些實施例中，處理單元係將指紋影像與電子裝置中之一指紋資料庫中預先儲存的的一或多張使用者指紋影像進行比對。當處理單元判斷指紋影像符合使用者指紋影像時，處理單元係判斷通過指紋驗證，並關閉指紋按壓區域之高亮度顯示模式及喚醒顯示面板以進入一操作畫面。處理單元係將操作畫面之亮度恢復至顯示面板之一先前亮度設定。當處理單元判斷指紋影像不符合使用者指紋影像時，處理單元係偵測是否有光學指紋感測器是否擷取下一指紋影像，當光學指紋感測器已擷取下一指紋影像，處理單元係將下一指紋影像與使用者指紋影像進行比對。當光學指紋感測器未擷取下一指紋影像，處理單元係關閉顯示面板。In some embodiments, the processing unit compares the fingerprint image with one or more user fingerprint images pre-stored in a fingerprint database in the electronic device. When the processing unit determines that the fingerprint image matches the user's fingerprint image, the processing unit determines that the fingerprint verification is passed, turns off the high-brightness display mode of the fingerprint pressing area and wakes up the display panel to enter an operation screen. The processing unit restores the brightness of the operation screen to a previous brightness setting of the display panel. When the processing unit determines that the fingerprint image does not match the user's fingerprint image, the processing unit detects whether there is an optical fingerprint sensor to capture the next fingerprint image. When the optical fingerprint sensor has captured the next fingerprint image, the processing unit The next fingerprint image is compared with the user's fingerprint image. When the optical fingerprint sensor does not capture the next fingerprint image, the processing unit closes the display panel.

在一些實施例中，當處理單元執行一指紋註冊程式時，處理單元係依據慣性資訊及觸碰資訊判斷是否要結束指紋註冊程式。當指紋註冊程式超時時，處理單元係依據觸碰資訊判斷使用者之手部是否還握持該電子裝置。當處理單元判斷該使用者之手部還握持該電子裝置時，處理單元係延長該指紋註冊程式之執行時間。In some embodiments, when the processing unit executes a fingerprint registration program, the processing unit determines whether to end the fingerprint registration program based on inertial information and touch information. When the fingerprint registration program times out, the processing unit determines whether the user's hand is still holding the electronic device based on the touch information. When the processing unit determines that the user's hand is still holding the electronic device, the processing unit extends the execution time of the fingerprint registration program.

本發明更提供一種使用光學指紋辨識的螢幕亮度控制方法，用於一電子裝置。電子裝置包括一顯示面板、一光學指紋感測器及一感測裝置，且光學指紋感測器整合至顯示面板下方。該方法包括：執行一指紋辨識應用程式以讓電子裝置進入一指紋匹配模式；利用感測裝置偵測電子裝置之慣性資訊及顯示面板之觸資訊；當顯示面板在該指紋匹配模式中處於一關閉狀態時，依據該慣性資訊及觸碰資訊以判斷一使用者是否欲使用該光學式指紋感測器進行一指紋辨識操作；以及當判斷使用者欲使用光學式指紋感測器進行指紋辨識操作時，在顯示面板上關於光學式指紋感測器之一指紋按壓區域顯示一指紋登入圖示，並將指紋按壓區域設定為一高亮度顯示模式並使光學指紋感測器擷取該使用者之一指紋影像。The present invention further provides a screen brightness control method using optical fingerprint recognition, which is used in an electronic device. The electronic device includes a display panel, an optical fingerprint sensor and a sensing device, and the optical fingerprint sensor is integrated under the display panel. The method includes: executing a fingerprint recognition application to allow the electronic device to enter a fingerprint matching mode; using a sensing device to detect the inertial information of the electronic device and the touch information of the display panel; when the display panel is closed in the fingerprint matching mode In the state, determine whether a user wants to use the optical fingerprint sensor for a fingerprint recognition operation based on the inertial information and touch information; and when it is determined that the user wants to use the optical fingerprint sensor for fingerprint recognition operation , Display a fingerprint login icon on a fingerprint pressing area of the optical fingerprint sensor on the display panel, and set the fingerprint pressing area to a high-brightness display mode and make the optical fingerprint sensor capture one of the users Fingerprint image.

以下說明係為完成發明的較佳實現方式，其目的在於描述本發明的基本精神，但並不用以限定本發明。實際的發明內容必須參考之後的權利要求範圍。The following description is a preferred implementation of the invention, and its purpose is to describe the basic spirit of the invention, but is not intended to limit the invention. The actual content of the invention must refer to the scope of the claims that follow.

必須了解的是，使用於本說明書中的"包含"、"包括"等詞，係用以表示存在特定的技術特徵、數值、方法步驟、作業處理、元件以及/或組件，但並不排除可加上更多的技術特徵、數值、方法步驟、作業處理、元件、組件，或以上的任意組合。It must be understood that the words "including", "including" and other words used in this specification are used to indicate the existence of specific technical features, values, method steps, operations, elements, and/or components, but they do not exclude Add more technical features, values, method steps, job processing, components, components, or any combination of the above.

於權利要求中使用如"第一"、"第二"、"第三"等詞係用來修飾權利要求中的元件，並非用來表示之間具有優先權順序，先行關係，或者是一個元件先於另一個元件，或者是執行方法步驟時的時間先後順序，僅用來區別具有相同名字的元件。Words such as "first", "second", and "third" used in the claims are used to modify the elements in the claims, and are not used to indicate that there is an order of priority, antecedent relationship, or an element Prior to another element, or the chronological order of execution of method steps, is only used to distinguish elements with the same name.

第1圖係顯示依據本發明一實施例中之電子裝置的方塊圖。電子裝置100為一可攜式電子裝置，例如為智慧型手機或平板電腦等等。如第1圖所示，電子裝置100包括一處理單元110、一顯示螢幕120、一記憶體單元130、一儲存裝置140、一指紋辨識裝置150及一感測裝置160。FIG. 1 is a block diagram of an electronic device according to an embodiment of the invention. The electronic device 100 is a portable electronic device, such as a smart phone or a tablet computer. As shown in FIG. 1, the electronic device 100 includes a processing unit 110, a display screen 120, a memory unit 130, a storage device 140, a fingerprint recognition device 150, and a sensing device 160.

處理單元110例如可為中央處理器(CPU)、一般用途處理器(general-purpose processor)等等，但本發明並不限於此。此外，處理單元110亦可包括一圖形處理單元(graphics processing unit，GPU)，用以傳送影像信號至顯示螢幕120並播放。The processing unit 110 may be, for example, a central processing unit (CPU), a general-purpose processor, etc., but the present invention is not limited thereto. In addition, the processing unit 110 may also include a graphics processing unit (GPU) for transmitting the image signal to the display screen 120 and playing it.

顯示螢幕120例如為一觸控螢幕，且包括一顯示面板121及感測陣列122，其中感測陣列122例如為一電容式觸控感測器陣列，且可整合至顯示面板121，用以偵測在顯示面板121之表面上之使用者手指或觸控物件(例如觸控筆)的觸控動作。The display screen 120 is, for example, a touch screen, and includes a display panel 121 and a sensing array 122. The sensing array 122 is, for example, a capacitive touch sensor array and can be integrated into the display panel 121 for detecting The touch action of a user's finger or a touch object (such as a stylus) on the surface of the display panel 121 is measured.

記憶體單元130為一隨機存取記憶體，例如是動態隨機存取記憶體(DRAM)或靜態隨機存取記憶體(SRAM)，但本發明並不限於此。儲存裝置140為一非揮發性記憶體(non-volatile memory)，例如可為一硬碟機(hard disk drive)、一固態硬碟(solid-state disk)、一快閃記憶體(flash memory)、或一唯讀記憶體(read-only memory)，但本發明並不限於此。儲存裝置140係用以儲存複數個應用程式141及一作業系統(例如iOS、Android、Windows Mobile等等)142。處理單元110係將一或多個應用程式141及作業系統142從儲存裝置140讀取至記憶體單元130並執行。此外，應用程式141可分為需使用指紋辨識的應用程式(例如安全層級)及不需使用指紋辨識的應用程式。需使用指紋辨識的應用程式例如為安全層級較高的應用程式，如付款程式、利用指紋登入的應用程式等等，但本發明並不限於此。The memory unit 130 is a random access memory, such as dynamic random access memory (DRAM) or static random access memory (SRAM), but the invention is not limited to this. The storage device 140 is a non-volatile memory, such as a hard disk drive, a solid-state disk, or a flash memory. , Or a read-only memory, but the invention is not limited to this. The storage device 140 is used to store a plurality of application programs 141 and an operating system (such as iOS, Android, Windows Mobile, etc.) 142. The processing unit 110 reads one or more application programs 141 and the operating system 142 from the storage device 140 to the memory unit 130 and executes them. In addition, the application program 141 can be divided into an application program that requires fingerprint recognition (such as a security level) and an application program that does not require fingerprint recognition. Application programs that require fingerprint recognition are, for example, applications with higher security levels, such as payment programs, applications that use fingerprints to log in, etc., but the present invention is not limited to this.

指紋辨識裝置150可整合於顯示螢幕120之中(in-display)或設置於顯示螢幕120之顯示平面下方(underneath display)，例如可稱為螢幕下指紋辨識裝置。指紋辨識裝置150的位置例如可設置在顯示螢幕120之畫面下方或中間偏下的位置以利於使用者將手指置於其上以進行指紋辨識，但本發明並不限於此。此外，因為指紋辨識裝置150並非如傳統的可攜式電子裝置是設置於使用者可視的範圍，例如在機構後方或機構側邊。因此，處理單元110需要在使用者介面(UI)顯示圖示(icon)以提示使用者可將手指按壓進行指紋辨識的區域。The fingerprint recognition device 150 may be integrated in the display screen 120 (in-display) or arranged under the display plane of the display screen 120 (underneath display), for example, it may be called an under-screen fingerprint recognition device. The position of the fingerprint recognition device 150 can be set, for example, below the screen of the display screen 120 or at a lower middle position to facilitate the user to place the finger on it for fingerprint recognition, but the present invention is not limited to this. In addition, because the fingerprint recognition device 150 is not like a traditional portable electronic device, it is installed in a visible area of the user, such as behind or on the side of the organization. Therefore, the processing unit 110 needs to display an icon on the user interface (UI) to prompt the user to press the finger to perform fingerprint recognition.

在一些實施例中，指紋辨識裝置150例如為可包括一控制器151、一光學指紋感測器152、及一非揮發性記憶體153。非揮發性記憶體153例如可為一可抹除可程式化唯讀記憶體(erasable programmable read-only memory，EPROM)或一電子式可抹除可程式化唯讀記憶體(electrically erasable programmable read-only memory，EEPROM)，但本發明並不限於此。非揮發性記憶體153係包括一指紋資料庫154，其係記錄使用者在此電子裝置100所註冊(enroll)的一或多個使用者指紋影像。在一些實施例中，指紋資料庫154可儲存於儲存裝置140。In some embodiments, the fingerprint recognition device 150 may include a controller 151, an optical fingerprint sensor 152, and a non-volatile memory 153, for example. The non-volatile memory 153 can be, for example, an erasable programmable read-only memory (EPROM) or an electronically erasable programmable read-only memory (electrically erasable programmable read-only memory). only memory, EEPROM), but the present invention is not limited to this. The non-volatile memory 153 includes a fingerprint database 154, which records one or more user fingerprint images enrolled by the user in the electronic device 100. In some embodiments, the fingerprint database 154 may be stored in the storage device 140.

在一實施例中，控制器151可以將光學指紋感測器152所偵測到的指紋影像與儲存於指紋資料庫154中的使用者指紋影像進行比對。此外，當使用者欲註冊其使用者指紋影像時，亦可由光學指紋感測器152偵測到指紋影像，並且由控制器151將指紋影像儲存至在非揮發性記憶體153(或儲存裝置140)的指紋資料庫。In one embodiment, the controller 151 can compare the fingerprint image detected by the optical fingerprint sensor 152 with the user fingerprint image stored in the fingerprint database 154. In addition, when the user wants to register his user's fingerprint image, the optical fingerprint sensor 152 can also detect the fingerprint image, and the controller 151 stores the fingerprint image in the non-volatile memory 153 (or storage device 140). ) Fingerprint database.

在另一實施例中，控制器151可以將光學指紋感測器152所偵測到的指紋影像傳送至處理單元110，且處理單元110係將指紋影像與儲存於指紋資料庫154中的使用者指紋影像進行比對。此外，當使用者欲註冊其使用者指紋影像時，亦可由光學指紋感測器152偵測到指紋影像，並且由控制器151將指紋影像傳送至處理單元110，且處理單元110係將指紋影像儲存至在非揮發性記憶體153(或儲存裝置140)的指紋資料庫154。In another embodiment, the controller 151 may send the fingerprint image detected by the optical fingerprint sensor 152 to the processing unit 110, and the processing unit 110 may associate the fingerprint image with the user stored in the fingerprint database 154 The fingerprint images are compared. In addition, when the user wants to register his user's fingerprint image, the optical fingerprint sensor 152 can also detect the fingerprint image, and the controller 151 transmits the fingerprint image to the processing unit 110, and the processing unit 110 transmits the fingerprint image Stored in the fingerprint database 154 in the non-volatile memory 153 (or the storage device 140).

詳細而言，光學指紋感測器152在偵測在顯示螢幕120之表面上的使用者手指時，顯示螢幕120需提供足夠的光線亮度以讓光學指紋感測器152所偵測到的指紋影像的品質可讓控制器151或處理單元110進行指紋辨識及比對。然而，顯示螢幕120要維持高亮度會耗費相當多的電力，故本發明中的處理單元110可判斷使用者準備要操作電子裝置100，故需利用光學指紋感測器152擷取指紋影像以進行解鎖動作。當處理單元110偵測到上述動作時，處理單元110係將顯示螢幕120中在光學指紋感測器152之位置週圍的區塊進行高亮度顯示(例如可使用最高亮度或是亮度為255的白光進行顯示)。In detail, when the optical fingerprint sensor 152 detects the user's finger on the surface of the display screen 120, the display screen 120 needs to provide sufficient light brightness for the fingerprint image detected by the optical fingerprint sensor 152 The quality of the controller 151 or the processing unit 110 can be used for fingerprint recognition and comparison. However, maintaining the high brightness of the display screen 120 consumes a lot of power. Therefore, the processing unit 110 in the present invention can determine that the user is ready to operate the electronic device 100, so the optical fingerprint sensor 152 needs to be used to capture the fingerprint image. Unlock action. When the processing unit 110 detects the above action, the processing unit 110 displays the area around the position of the optical fingerprint sensor 152 on the display screen 120 with high brightness (for example, the highest brightness or white light with a brightness of 255 can be used). To display).

感測裝置160可包括一近接感測器(proximity sensor)161、一加速度計(accelerometer)162、一陀螺儀(gyroscope)163、以及複數個觸碰感測器164。近接感測器161係設置於與顯示螢幕120同側的表面週圍，用以偵測使用者與顯示螢幕120之表面的距離。加速度計162及陀螺儀163例如可合稱為重力感測器(Gravity sensor，G-sensor)，其可用以偵測電子裝置100之加速度(acceleration)及方向(orientation)。觸碰感測器164係設置於電子裝置100之側表面，例如為顯示螢幕120之上方、下方、左方、右方的側表面，用以偵測使用者手部握持(hold)電子裝置的複數個位置。觸碰感測器164例如可為電容式觸碰感測器，但本發明並不限於此。在一些實施例中，觸碰感測器164例如可由顯示螢幕120(例如為具有電容式觸控裝置的顯示螢幕)所取代，例如感測陣列122(為電容式感測器所組成的陣列)可用以偵測使用者觸碰顯示螢幕120之邊緣之握持動作。The sensing device 160 may include a proximity sensor 161, an accelerometer 162, a gyroscope 163, and a plurality of touch sensors 164. The proximity sensor 161 is arranged around the surface on the same side as the display screen 120 to detect the distance between the user and the surface of the display screen 120. The accelerometer 162 and the gyroscope 163 can be collectively referred to as a gravity sensor (G-sensor), for example, which can be used to detect the acceleration and orientation of the electronic device 100. The touch sensor 164 is disposed on the side surface of the electronic device 100, such as the upper, lower, left, and right side surfaces of the display screen 120, to detect the user's hand holding the electronic device The plural positions. The touch sensor 164 may be, for example, a capacitive touch sensor, but the invention is not limited thereto. In some embodiments, the touch sensor 164 may be replaced by a display screen 120 (for example, a display screen with a capacitive touch device), such as a sensing array 122 (an array of capacitive sensors). It can be used to detect the gripping motion of the user touching the edge of the display screen 120.

第2圖為依據本發明一實施例中之電子裝置之解鎖操作的示意圖。請同時參考第1圖及第2圖。FIG. 2 is a schematic diagram of the unlocking operation of the electronic device according to an embodiment of the invention. Please refer to Figure 1 and Figure 2 at the same time.

在一實施例中，當使用者有一段時間未使用電子裝置100時，電子裝置100的整個顯示螢幕120會處於關閉狀態(如第2圖之左邊部分所示)，或是在永遠顯示界面(always-display widget)之外的區域會處於關閉狀態。當使用者欲操作電子裝置100時，使用者通常會利用單手握持電子裝置100並靠近使用者，如第2圖之中間部分所示。接著，使用者可將手指置於顯示螢幕120上之指紋辨識裝置150的區域以進行指紋辨識解鎖。In one embodiment, when the user has not used the electronic device 100 for a period of time, the entire display screen 120 of the electronic device 100 is turned off (as shown in the left part of Figure 2), or the display interface is always displayed ( The area outside the always-display widget) will be closed. When the user wants to operate the electronic device 100, the user usually holds the electronic device 100 with one hand and approaches the user, as shown in the middle part of FIG. 2. Then, the user can place a finger on the area of the fingerprint recognition device 150 on the display screen 120 to perform fingerprint recognition and unlocking.

在此實施例中，處理單元110係依據來自感測裝置160的感測資訊以判斷使用者是否真的要使用電子裝置100。當處理單元110判斷使用者真的要使用電子裝置100時，處理單元110係喚醒顯示螢幕120並在顯示螢幕120上相應於指紋辨識裝置150的區域顯示指紋圖像登入圖示(例如區域210)，如第2圖之右邊部分所示。其中，區域210中的指紋圖像登入圖示可以用高亮度顯示，且在顯示螢幕120在區域210之外的其他區域220則可用低亮度顯示或是維持在關閉狀態。In this embodiment, the processing unit 110 determines whether the user really wants to use the electronic device 100 based on the sensing information from the sensing device 160. When the processing unit 110 determines that the user really wants to use the electronic device 100, the processing unit 110 wakes up the display screen 120 and displays the fingerprint image login icon on the display screen 120 in the area corresponding to the fingerprint recognition device 150 (for example, area 210) , As shown in the right part of Figure 2. Wherein, the fingerprint image login icon in the area 210 can be displayed with high brightness, and the display screen 120 in other areas 220 outside the area 210 can be displayed with low brightness or maintained in a closed state.

因此，使用者即可將手指置於指紋辨識裝置150的區域210以進行指紋辨識。當控制器151或處理單元110判斷指紋辨識裝置150所偵測的指紋影像與指紋資料庫154中的使用者指紋影像相符時，處理單元110即可判斷解鎖成功，並進入作業系統142的桌面。Therefore, the user can place a finger on the area 210 of the fingerprint recognition device 150 to perform fingerprint recognition. When the controller 151 or the processing unit 110 determines that the fingerprint image detected by the fingerprint recognition device 150 matches the user fingerprint image in the fingerprint database 154, the processing unit 110 can determine that the unlocking is successful and enter the desktop of the operating system 142.

第3A～3F圖為依據本發明一實施例中之觸碰感測器的感測區域的示意圖。3A to 3F are schematic diagrams of the sensing area of the touch sensor according to an embodiment of the present invention.

在一實施例中，處理單元110可由感測裝置160取得感測資訊，例如可由觸碰感測器164取得電子裝置100的觸碰資訊、由加速度計162及陀螺儀取得電子裝置100的慣性資訊(包括加速度、位移及方向)、並由近接感測器161取得近接感測資訊。舉例來說，處理單元110可依據觸碰資訊判斷使用者是否用手握持電子裝置100，例如可判斷使用者的手指是否接觸顯示螢幕120的相鄰兩個邊緣(例如邊界311或312)、或是兩個相對(opposite)邊緣(例如邊界312及314)。因為觸碰感測器164為電容式感測器164，故當使用者的手指靠近或接觸顯示螢幕120的表面或邊緣，處理單元110可將觸碰感測器164所偵測到的電容變化數值進行量化。舉例來說，使用者手指可視為導體，當手指觸碰顯示螢幕120的表面或邊緣時，使用者手指會吸取觸碰感測器164上的部分電荷，進而造成觸碰感測器164相應之感測區域的電容值產生變化。In one embodiment, the processing unit 110 may obtain the sensing information from the sensing device 160, for example, the touch sensor 164 may obtain the touch information of the electronic device 100, and the accelerometer 162 and the gyroscope may obtain the inertial information of the electronic device 100. (Including acceleration, displacement and direction), and the proximity sensor 161 obtains proximity sensing information. For example, the processing unit 110 can determine whether the user is holding the electronic device 100 by hand based on the touch information, for example, it can determine whether the user's finger touches two adjacent edges (such as the border 311 or 312) of the display screen 120, Or two opposite edges (such as boundaries 312 and 314). Because the touch sensor 164 is a capacitive sensor 164, when the user's finger approaches or touches the surface or edge of the display screen 120, the processing unit 110 can change the capacitance detected by the touch sensor 164 The value is quantified. For example, the user’s finger can be regarded as a conductor. When the finger touches the surface or edge of the display screen 120, the user’s finger will absorb part of the electric charge on the touch sensor 164, causing the touch sensor 164 to respond accordingly. The capacitance value of the sensing area changes.

如第3A圖所示，在邊界312上有3個區域偵測到有觸碰動作以及在邊界314上有多個區域的觸碰感測器164偵測到其相應的電容值會產生變化，其中電容變化的量化值係標示於第3A圖上。類似地，在第3B～3F圖中亦分別繪示了使用者手部握持電子裝置100的不同方式，例如可為3指、4指、5指以及不同位置的握持方式。需注意的是，本發明並不限定於第3A～3F圖中的握持方式，本發明領域中具有通常知識者可依實際情況而設定適合的握持樣式並進行電容值變化的偵測及判斷相應的握持樣式。As shown in FIG. 3A, there are three areas on the boundary 312 that have touch action detected, and the touch sensor 164 with multiple areas on the boundary 314 detects that the corresponding capacitance values will change. The quantified value of capacitance change is marked on Figure 3A. Similarly, in Figures 3B to 3F, different ways of holding the electronic device 100 with the user's hand are also shown, for example, it can be 3 fingers, 4 fingers, 5 fingers, and different positions. It should be noted that the present invention is not limited to the gripping methods in Figures 3A to 3F. Those with ordinary knowledge in the field of the present invention can set a suitable gripping style according to the actual situation and perform the detection and detection of changes in capacitance. Determine the corresponding holding style.

處理單元110更依據來自感測裝置160的感測資訊以判斷使用者手指之懸空變化軌跡，藉以決定使用者是否確定要進行指紋辨識。舉例來說，當利用電容式的觸碰感測器164進行觸碰偵測時，使用者的手指並不需接觸顯示螢幕的120的表面，觸碰感測器164即可偵測到顯示螢幕120在使用者手指下方的區域的電容值產生變化。因此，當使用者手指是由上往下接近光學指紋感測器152在顯示螢幕120之表面區域X，在光學指紋感測器152位於相同區域(例如可在上方或下方)的觸碰感測器164即可偵測到表面區域X的電容值變化加大，故處理單元110可依據上述電容變化值以判斷使用者手指欲進行指紋辨識。The processing unit 110 further determines the floating change trajectory of the user's finger based on the sensing information from the sensing device 160, so as to determine whether the user is sure to perform fingerprint recognition. For example, when the capacitive touch sensor 164 is used for touch detection, the user's finger does not need to touch the surface of the display screen 120, and the touch sensor 164 can detect the display screen. 120 The capacitance value of the area under the user's finger changes. Therefore, when the user's finger approaches the surface area X of the optical fingerprint sensor 152 on the display screen 120 from top to bottom, the optical fingerprint sensor 152 is located in the same area (for example, above or below) for touch sensing The device 164 can detect that the capacitance value of the surface area X increases, so the processing unit 110 can determine that the user's finger wants to perform fingerprint recognition based on the capacitance change value.

此外，加速度計162及陀螺儀163所感測的慣性資訊中的Z軸資訊可用於判斷顯示螢幕120之表面是否朝上，X/Y軸資訊可用於判斷電子裝置100的傾斜角度是否在預定的操作範圍內，如第4圖所示。In addition, the Z-axis information in the inertial information sensed by the accelerometer 162 and the gyroscope 163 can be used to determine whether the surface of the display screen 120 is facing upward, and the X/Y-axis information can be used to determine whether the tilt angle of the electronic device 100 is in a predetermined operation. Within the range, as shown in Figure 4.

綜合上述幾種不同的感測資訊之判斷條件，處理單元110可判斷是否要喚醒顯示螢幕120並開啟高亮度區域顯示模式(例如針對光學指紋感測器152之區域)。舉例來說，處理單元110會判斷下列條件：(1) 目前所執行的應用程式是否屬於指紋應用程式(或是可判斷處理單元110是否處於指紋匹配模式)，例如為指紋辨識解鎖、或是利用指紋辨識以進行付款之應用程式等等；(2) 螢幕方位資訊是否滿足下列條件，例如顯示螢幕120朝上、電子裝置100的傾斜角度是否符合在預定操作範圍、且顯示螢幕120與使用者的距離不會過近；(3) 觸碰邊界的數量是否滿足預定條件，例如當顯示面板120有兩個或以上的邊緣(例如可為相鄰的邊緣或相對的邊緣)被使用者觸碰時，可判斷使用者手部已握持電子裝置100。Based on the above-mentioned judgment conditions of the different sensing information, the processing unit 110 can determine whether to wake up the display screen 120 and turn on the high-brightness area display mode (for example, for the area of the optical fingerprint sensor 152). For example, the processing unit 110 will determine the following conditions: (1) Whether the currently running application belongs to a fingerprint application (or it can determine whether the processing unit 110 is in a fingerprint matching mode), such as fingerprint recognition unlocking, or using Fingerprint recognition for payment applications, etc.; (2) Whether the screen orientation information meets the following conditions, such as whether the display screen 120 faces up, whether the tilt angle of the electronic device 100 meets the predetermined operating range, and whether the display screen 120 and the user’s The distance will not be too close; (3) Whether the number of touched boundaries meets a predetermined condition, for example, when the display panel 120 has two or more edges (for example, adjacent edges or opposite edges) that are touched by the user , It can be determined that the user has held the electronic device 100 by hand.

當上述條件(1)～(3)均滿足時，處理單元110在顯示螢幕120在光學指紋感測器152之位置的顯示區域顯示指紋按壓區域及/或指紋按壓圖示，處理單元110並同時調整顯示螢幕120的顯示亮度，例如將上述指紋按壓區域切換為高亮度顯示模式，意即指紋按壓圖示或是指紋按壓區域的外框可用高亮度顯示模式。此外，當使用者完成指紋辨識後，處理單元110即會將上述指紋按壓區域的高亮度顯示模式關閉，並將上述指紋按壓區域的亮度調整回原本在進行指紋辨識前的亮度設定。因此，本發明可在使用者單手操作電子裝置100的情境下準確判斷使用者是否真的要使用指紋辨識解鎖，且可降低顯示螢幕120不必要的開啟，故可降低電子裝置100的功耗。此外，本發明亦可提昇單手操作時(例如站立搭乘公車、捷運等等)的便利性。When the above conditions (1) to (3) are all satisfied, the processing unit 110 displays the fingerprint pressing area and/or fingerprint pressing icon on the display area of the display screen 120 at the position of the optical fingerprint sensor 152, and the processing unit 110 simultaneously Adjust the display brightness of the display screen 120, for example, switch the fingerprint pressing area to the high-brightness display mode, which means that the fingerprint pressing icon or the outer frame of the fingerprint pressing area can be used in the high-brightness display mode. In addition, after the user completes fingerprint recognition, the processing unit 110 turns off the high-brightness display mode of the fingerprint pressing area, and adjusts the brightness of the fingerprint pressing area to the original brightness setting before fingerprint recognition. Therefore, the present invention can accurately determine whether the user really wants to use fingerprint recognition to unlock the electronic device 100 when the user is operating the electronic device 100 with one hand, and can reduce unnecessary opening of the display screen 120, thereby reducing the power consumption of the electronic device 100 . In addition, the present invention can also improve the convenience of one-handed operation (such as standing on a bus, MRT, etc.).

在一些實施例中，本發明亦可結合感測裝置160之不同感測資訊，例如電子裝置之慣性資訊及觸碰資訊，且在執行指紋註冊程序時藉由所偵測到之顯示螢幕120的方位來決定是否要結束指紋註冊程式。此外，在指紋註冊程序超時的情況下，可藉由觸碰顯示螢幕的邊緣來偵測使用者是否還用手部握持電子裝置以進行指紋註冊，進行增加指紋註冊時的便利性。In some embodiments, the present invention can also combine different sensing information of the sensing device 160, such as the inertia information and touch information of the electronic device, and by the detected display screen 120 during the fingerprint registration process. Direction to decide whether to end the fingerprint registration program. In addition, when the fingerprint registration process times out, the user can touch the edge of the display screen to detect whether the user is still holding the electronic device with his hand to perform fingerprint registration, so as to increase the convenience of fingerprint registration.

第5A－5B圖為依據本發明一實施例中之使用光學指紋辨識的螢幕亮度控制方法。請同時參考第1圖及第5A－5B圖。第5A－5B圖之流程可在指紋匹配模式下進行操作，例如處理單元110正在執行需要進行指紋辨識的應用程式。Figures 5A-5B show a screen brightness control method using optical fingerprint recognition according to an embodiment of the present invention. Please refer to Figure 1 and Figures 5A-5B at the same time. The process shown in Figures 5A-5B can be operated in the fingerprint matching mode. For example, the processing unit 110 is executing an application that requires fingerprint recognition.

在步驟S500，電子裝置100進入指紋匹配模式。舉例來說，處理單元目前所執行的應用程式係屬於指紋應用程式，例如為指紋辨識解鎖、或是利用指紋辨識以進行付款之應用程式等等。In step S500, the electronic device 100 enters a fingerprint matching mode. For example, the application currently executed by the processing unit belongs to a fingerprint application, such as fingerprint recognition unlocking, or an application using fingerprint recognition for payment, and so on.

在步驟S502，判斷顯示面板121是否關閉。若顯示面板121已關閉，執行步驟S504；若顯示面板121未關閉，則回到步驟S502。In step S502, it is determined whether the display panel 121 is closed. If the display panel 121 is closed, perform step S504; if the display panel 121 is not closed, return to step S502.

在步驟S504，判斷電子裝置100是否被握持。若判斷電子裝置100被握持，執行步驟S506。若判斷電子裝置未被握持，回到步驟S502。舉例來說，處理單元110可依據來自觸碰感測器164的感測資訊以判斷觸碰邊界的數量是否滿足預定條件，例如當處理單元110判斷顯示面板120有兩個或以上的邊緣(例如可為相鄰的邊緣或相對的邊緣)被使用者觸碰時，可判斷使用者手部已握持電子裝置100。In step S504, it is determined whether the electronic device 100 is held. If it is determined that the electronic device 100 is held, step S506 is executed. If it is determined that the electronic device is not being held, return to step S502. For example, the processing unit 110 may determine whether the number of touched boundaries meets a predetermined condition based on the sensing information from the touch sensor 164. For example, when the processing unit 110 determines that the display panel 120 has two or more edges (for example, When the user touches the adjacent edge or the opposite edge, it can be determined that the user's hand has held the electronic device 100.

在步驟S506，判斷顯示面板121是否朝向使用者。若判斷顯示螢幕120朝向使用者，執行步驟S508。若判斷顯示面板121未朝向使用者，則回到步驟S502。舉例來說，處理單元110可判斷螢幕方位資訊是否滿足下列條件，例如顯示面板121朝上、電子裝置100的傾斜角度是否符合在預定操作範圍、且顯示面板121與使用者的距離不會過近。當上述三個條件均滿足時，處理單元110即可判斷顯示面板121朝向使用者。In step S506, it is determined whether the display panel 121 faces the user. If it is determined that the display screen 120 faces the user, step S508 is executed. If it is determined that the display panel 121 is not facing the user, return to step S502. For example, the processing unit 110 may determine whether the screen orientation information satisfies the following conditions, such as whether the display panel 121 faces upward, whether the tilt angle of the electronic device 100 meets the predetermined operating range, and the distance between the display panel 121 and the user is not too close . When the above three conditions are all satisfied, the processing unit 110 can determine that the display panel 121 faces the user.

在步驟S508，判斷使用者手指是否進行預定的懸浮動作。若是，則執行步驟S510；若否，則回到步驟S502。舉例來說，當利用電容式的觸碰感測器164進行觸碰偵測時，使用者的手指並不需接觸顯示螢幕的120的表面，觸碰感測器164即可偵測到顯示螢幕120在使用者手指下方的區域的電容值產生變化。因此，當使用者手指是由上往下接近光學指紋感測器152在顯示螢幕120之表面區域X，在光學指紋感測器152位於相同區域(例如可在上方或下方)的觸碰感測器164即可偵測到表面區域X的電容值變化加大，故處理單元110可依據上述電容變化值以判斷使用者手指係進行預定由上而下的預定懸浮動作以進行指紋辨識。In step S508, it is determined whether the user's finger performs a predetermined hovering action. If yes, go to step S510; if no, go back to step S502. For example, when the capacitive touch sensor 164 is used for touch detection, the user's finger does not need to touch the surface of the display screen 120, and the touch sensor 164 can detect the display screen. 120 The capacitance value of the area under the user's finger changes. Therefore, when the user's finger approaches the surface area X of the optical fingerprint sensor 152 on the display screen 120 from top to bottom, the optical fingerprint sensor 152 is located in the same area (for example, above or below) for touch sensing The device 164 can detect that the capacitance value change of the surface area X increases, so the processing unit 110 can determine that the user's finger is performing a predetermined top-down predetermined floating motion based on the above-mentioned capacitance change value for fingerprint recognition.

需注意的是，在第5A－5B圖中的步驟S502～S508之順序可以彼此交換，本發明並不限於第5A－5B圖中之步驟S502～S508之順序。當步驟S502～S508中的條件均滿足時，才會執行步驟S510。若步驟S502～S508中的條件之任一者未滿足時，則流程會回到步驟S502。It should be noted that the order of steps S502-S508 in Figures 5A-5B can be exchanged, and the present invention is not limited to the order of steps S502-S508 in Figures 5A-5B. When the conditions in steps S502 to S508 are all satisfied, step S510 is executed. If any one of the conditions in steps S502 to S508 is not met, the flow returns to step S502.

在步驟S510，處理單元110在顯示面板121上顯示指紋登入圖示，且指紋登入圖示之指紋按壓區域為高亮度顯示模式。舉例來說，此時顯示面板121在指紋按壓區域可為高亮度顯示模式，且顯示面板121的其他區域則可為低亮度顯示模式或是維持關閉狀態。In step S510, the processing unit 110 displays a fingerprint login icon on the display panel 121, and the fingerprint pressing area of the fingerprint login icon is in a high-brightness display mode. For example, at this time, the display panel 121 may be in a high-brightness display mode in the fingerprint pressing area, and other areas of the display panel 121 may be in a low-brightness display mode or remain in a closed state.

在步驟S512，擷取指紋影像。舉例來說，因為顯示面板121在指紋按壓區域已切換為高亮度顯示模式，故光學指紋感測器152所偵測到的指紋影像會具有較佳的影像品質。In step S512, a fingerprint image is captured. For example, because the display panel 121 has been switched to a high-brightness display mode in the fingerprint pressing area, the fingerprint image detected by the optical fingerprint sensor 152 will have better image quality.

在步驟S513，將所擷取的指紋影像與指紋資料庫154中的使用者指紋影像進行比對。舉例來說，處理單元110可比對所擷取的指紋影像之特徵點是否與預先儲存於指紋資料庫154中之使用者指紋影像的特徵點相符合，其中上述指紋影像例如可採用本發明領域中之習知手段與使用者指紋影像進行比對，故其細節於此不再贅述。In step S513, the captured fingerprint image is compared with the user fingerprint image in the fingerprint database 154. For example, the processing unit 110 may compare whether the characteristic points of the captured fingerprint image are consistent with the characteristic points of the user fingerprint image stored in the fingerprint database 154. The fingerprint image may be used in the field of the present invention, for example. The conventional method is compared with the user's fingerprint image, so the details will not be repeated here.

在步驟S514，判斷指紋影像是否比對成功。若指紋影像比對成功，則執行步驟S516；若指紋影像未比對成功，則執行步驟S518。In step S514, it is determined whether the fingerprint image comparison is successful. If the fingerprint image is successfully compared, step S516 is executed; if the fingerprint image is not successfully compared, then step S518 is executed.

在步驟S516，處理單元110係在顯示面板121上顯示操作畫面，並將顯示面板121之亮度恢復為顯示面板121關閉前的先前亮度設定。因為在步驟S514中之指紋影像比對成功，故處理單元110可判斷指紋認證成功，並解鎖顯示面板121的鎖定畫面以進入操作畫面，或是可進行付款程序。In step S516, the processing unit 110 displays the operation screen on the display panel 121, and restores the brightness of the display panel 121 to the previous brightness setting before the display panel 121 is closed. Because the fingerprint image comparison in step S514 is successful, the processing unit 110 can determine that the fingerprint authentication is successful, and unlock the lock screen of the display panel 121 to enter the operation screen, or can perform the payment process.

在步驟S518，判斷是否有下一筆需比對的指紋影像。若有下一筆需比對的指紋影像，則回到步驟S513，將下一筆指紋影像與指紋資料庫154中的使用者指紋影像進行比對。若無下一筆需比對的指紋影像，則執行步驟S520。In step S518, it is determined whether there is a fingerprint image to be compared next. If there is the next fingerprint image to be compared, the process returns to step S513, and the next fingerprint image is compared with the user fingerprint image in the fingerprint database 154. If there is no next fingerprint image to be compared, step S520 is executed.

在步驟S520，關閉顯示面板121。因為在步驟S518中已判斷使用者沒有繼續進行指紋辨識的需求，故處理單元110可接著關閉顯示面板121。In step S520, the display panel 121 is closed. Because it has been determined in step S518 that the user does not need to continue fingerprint recognition, the processing unit 110 can then close the display panel 121.

綜上所述，本發明係提供一種電子裝置及用於光學指紋辨識的螢幕亮度控制方法，其可在使用者單手操作電子裝置的情境下準確判斷使用者是否真的要使用指紋辨識解鎖，且可降低顯示螢幕誤動作及不必要的開啟，故可降低電子裝置的功耗，並可降低顯示面板處於高亮度顯示模式的時間以增加顯示面板的使用壽命。本發明亦可提昇單手操作時(例如站立搭乘公車、捷運等等)的便利性。In summary, the present invention provides an electronic device and a screen brightness control method for optical fingerprint recognition, which can accurately determine whether the user really wants to unlock using fingerprint recognition in the context of the user operating the electronic device with one hand. And it can reduce the display screen malfunction and unnecessary opening, so the power consumption of the electronic device can be reduced, and the time that the display panel is in the high-brightness display mode can be reduced to increase the service life of the display panel. The present invention can also improve the convenience of one-handed operation (for example, standing on a bus, MRT, etc.).

此外，本發明亦可結合感測裝置之不同感測資訊，例如電子裝置之慣性資訊及觸碰資訊，且在指紋註冊程式時藉由所偵測到之顯示螢幕的方位來決定是否要結束指紋註冊程式，並且在指紋註冊程式超時的情況下，可藉由觸碰顯示螢幕的邊緣來偵測使用者是否還用手部握持電子裝置以進行指紋註冊。當判斷使用者之手部還握持電子裝置，可再延長指紋註冊程式的執行時間，藉以進行增加指紋註冊時的便利性。In addition, the present invention can also combine different sensing information of the sensing device, such as the inertia information and touch information of the electronic device, and determine whether to end the fingerprint by the orientation of the detected display screen during the fingerprint registration program Register the program, and when the fingerprint registration program times out, touch the edge of the display screen to detect whether the user is still holding the electronic device with his hand for fingerprint registration. When it is determined that the user's hand is still holding the electronic device, the execution time of the fingerprint registration program can be extended, thereby increasing the convenience of fingerprint registration.

本發明雖以較佳實施例揭露如上，然其並非用以限定本發明的範圍，任何所屬技術領域中具有通常知識者，在不脫離本發明之精神和範圍內，當可做些許的更動與潤飾，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。Although the present invention is disclosed as above in a preferred embodiment, it is not intended to limit the scope of the present invention. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. Retouching, therefore, the scope of protection of the present invention shall be subject to the scope of the attached patent application.

100:電子裝置 110:處理單元 120:顯示螢幕 121:顯示面板 122:觸控裝置 130:記憶體單元 140:儲存裝置 141:應用程式 142:作業系統 150:指紋辨識裝置 151:控制器 152:光學指紋感測器 153:非揮發性記憶體 154:指紋資料庫 160:感測裝置 161:近接感測器 162:加速度計 163:陀螺儀 164:觸碰感測器 210、220:區域 311－314:邊界 S500－S520:步驟100: electronic device 110: processing unit 120: display screen 121: display panel 122: touch device 130: memory unit 140: storage device 141: Application 142: Operating System 150: Fingerprint recognition device 151: Controller 152: Optical fingerprint sensor 153: Non-volatile memory 154: Fingerprint Database 160: sensing device 161: Proximity Sensor 162: Accelerometer 163: Gyroscope 164: Touch Sensor 210, 220: area 311-314: Border S500－S520: steps

第1圖為依據本發明一實施例中之電子裝置的方塊圖。第2圖為依據本發明一實施例中之電子裝置之解鎖操作的示意圖。第3A～3F圖為依據本發明一實施例中之觸碰感測器的感測區域的示意圖。第4圖為依據本發明一實施例中判斷電子裝置之傾斜狀況的示意圖。第5A－5B圖為依據本發明一實施例中之使用光學指紋辨識的螢幕亮度控制方法。Figure 1 is a block diagram of an electronic device according to an embodiment of the invention. FIG. 2 is a schematic diagram of the unlocking operation of the electronic device according to an embodiment of the invention. 3A to 3F are schematic diagrams of the sensing area of the touch sensor according to an embodiment of the present invention. FIG. 4 is a schematic diagram of judging the tilt status of the electronic device according to an embodiment of the present invention. Figures 5A-5B show a screen brightness control method using optical fingerprint recognition according to an embodiment of the present invention.

100:電子裝置 100: electronic device

150:指紋辨識裝置 150: Fingerprint recognition device

110:處理單元 110: processing unit

151:控制器 151: Controller

120:顯示螢幕 120: display screen

152:光學指紋感測器 152: Optical fingerprint sensor

121:顯示面板 121: display panel

153:非揮發性記憶體 153: Non-volatile memory

122:觸控裝置 122: touch device

154:指紋資料庫 154: Fingerprint Database

130:記憶體單元 130: memory unit

160:感測裝置 160: sensing device

140:儲存裝置 140: storage device

161:近接感測器 161: Proximity Sensor

141:應用程式 141: Application

162:加速度計 162: Accelerometer

142:作業系統 142: Operating System

163:陀螺儀 163: Gyroscope

164:觸碰感測器 164: Touch Sensor

Claims

一種電子裝置，包括：一顯示面板；一光學式指紋感測器，其係整合至該顯示面板下方；一感測裝置，用以偵測該電子裝置之慣性資訊及該顯示面板之觸碰資訊；以及一處理單元，用以執行一指紋辨識應用程式以讓該電子裝置進入一指紋匹配模式，其中，當該顯示面板在該指紋匹配模式中處於一關閉狀態時，該處理單元係依據該慣性資訊及該觸碰資訊以判斷一使用者是否欲使用該光學式指紋感測器進行一指紋辨識操作，其中，當該處理單元判斷該使用者欲使用該光學式指紋感測器進行該指紋辨識操作時，該處理單元係在該顯示面板上關於該光學式指紋感測器之一指紋按壓區域顯示一指紋登入圖示，並將該指紋按壓區域設定為一高亮度顯示模式並使該光學指紋感測器擷取該使用者之一指紋影像。An electronic device, including: A display panel; An optical fingerprint sensor integrated under the display panel; A sensing device for detecting the inertial information of the electronic device and the touch information of the display panel; and A processing unit for executing a fingerprint recognition application to allow the electronic device to enter a fingerprint matching mode, Wherein, when the display panel is in a closed state in the fingerprint matching mode, the processing unit determines whether a user wants to use the optical fingerprint sensor for fingerprint recognition based on the inertial information and the touch information operating, Wherein, when the processing unit determines that the user wants to use the optical fingerprint sensor to perform the fingerprint recognition operation, the processing unit displays a display on the display panel with respect to a fingerprint pressing area of the optical fingerprint sensor Fingerprint login icon, and set the fingerprint pressing area to a high-brightness display mode and enable the optical fingerprint sensor to capture a fingerprint image of the user.

如申請專利範圍第1項所述之電子裝置，其中該感測裝置包括：一近接感測器，用以偵測該電子裝置與該使用者之一距離資訊；一加速度計，用以偵測該電子裝置之加速度及位移；一陀螺儀，用以偵測該電子裝置之方向，其中該慣性資訊包括電子裝置之該加速度、該位移及該方向；以及複數個觸碰感測器，設置於該顯示面板之複數個邊緣上，用以偵測使用者接觸該顯示面板之一觸碰資訊以及該使用者之手指之一懸浮動作。The electronic device described in item 1 of the scope of patent application, wherein the sensing device includes: A proximity sensor for detecting distance information between the electronic device and the user; An accelerometer to detect the acceleration and displacement of the electronic device; A gyroscope for detecting the direction of the electronic device, wherein the inertial information includes the acceleration, the displacement and the direction of the electronic device; and A plurality of touch sensors are arranged on a plurality of edges of the display panel to detect a touch information of the user touching the display panel and a hovering motion of the user's finger.

如申請專利範圍第2項所述之電子裝置，其中該處理單元更依據該觸碰資訊判斷是否使用者之手部觸碰該顯示面板之該等邊緣的數量是否達到一預定數量及分布，其中，當觸碰該顯示面板之該等邊緣的數量達到該預定數量及分布，該處理單元係判斷該距離資訊是否大於一預定值、且該電子裝置之一傾斜角度是否在一預定操作範圍、且該顯示面板之表面是否朝上；其中，當觸碰該顯示面板之該等邊緣的數量未達到該預定數量，該處理單元係將該顯示面板維持在關閉狀態。For example, the electronic device described in item 2 of the scope of patent application, wherein the processing unit further determines whether the number of the edges of the display panel touched by the user's hand reaches a predetermined number and distribution based on the touch information, Wherein, when the number of touching the edges of the display panel reaches the predetermined number and distribution, the processing unit determines whether the distance information is greater than a predetermined value, and whether an inclination angle of the electronic device is within a predetermined operating range, And whether the surface of the display panel faces upward; Wherein, when the number of touching the edges of the display panel does not reach the predetermined number, the processing unit maintains the display panel in a closed state.

如申請專利範圍第2項所述之電子裝置，其中該等觸碰感測器為電容式觸感測器，其中當在該光學指紋感測器之區域內的該等觸碰感測器偵測到電容值由高變低時，該處理單元係判斷該使用者之手指係由上往下進行該懸浮動作。For example, the electronic device described in item 2 of the scope of patent application, wherein the touch sensors are capacitive touch sensors, and when the touch sensors in the area of the optical fingerprint sensor detect When the measured capacitance value changes from high to low, the processing unit determines that the user's finger performs the hovering action from top to bottom.

如申請專利範圍第3項所述之電子裝置，其中當該處理單元判斷該距離資訊大於該預定值、且該電子裝置之該傾斜角度在該預定操作範圍、且該顯示面板之表面朝上時，該處理單元係在該顯示面板上關於該光學式指紋感測器之該指紋按壓區域顯示該指紋登入圖示，並將該指紋按壓區域設定為該高亮度顯示模式並使該光學指紋感測器擷取該使用者之該指紋影像。The electronic device described in item 3 of the scope of patent application, wherein when the processing unit determines that the distance information is greater than the predetermined value, and the inclination angle of the electronic device is within the predetermined operating range, and the surface of the display panel faces upward The processing unit displays the fingerprint login icon on the fingerprint pressing area of the optical fingerprint sensor on the display panel, and sets the fingerprint pressing area to the high-brightness display mode and enables the optical fingerprint sensor The device captures the fingerprint image of the user.

如申請專利範圍第5項所述之電子裝置，其中當觸碰該顯示面板之該等邊緣的數量達到2且包含該等邊緣之兩個相鄰邊緣或兩個相對邊緣，該處理單元係判斷觸碰該顯示面板之該等邊緣的數量達到該預定數量及分布。For the electronic device described in item 5 of the scope of patent application, when the number of the edges touching the display panel reaches 2 and includes two adjacent edges or two opposite edges of the edges, the processing unit determines The number of touching the edges of the display panel reaches the predetermined number and distribution.

如申請專利範圍第1項所述之電子裝置，其中該處理單元係將該指紋影像與該電子裝置中之一指紋資料庫中預先儲存的的一或多張使用者指紋影像進行比對，其中，當該處理單元判斷該指紋影像符合該使用者指紋影像時，該處理單元係判斷通過指紋驗證，並關閉該指紋按壓區域之該高亮度顯示模式及喚醒該顯示面板以進入一操作畫面，其中該處理單元係將該操作畫面之亮度恢復至該顯示面板之一先前亮度設定。For example, the electronic device described in claim 1, wherein the processing unit compares the fingerprint image with one or more user fingerprint images pre-stored in a fingerprint database in the electronic device, Wherein, when the processing unit determines that the fingerprint image matches the user fingerprint image, the processing unit determines that the fingerprint verification is passed, turns off the high-brightness display mode of the fingerprint pressing area and wakes up the display panel to enter an operation screen, The processing unit restores the brightness of the operation screen to a previous brightness setting of the display panel.

如申請專利範圍第7項所述之電子裝置，其中當該處理單元判斷該指紋影像不符合該使用者指紋影像時，該處理單元係偵測是否有該光學指紋感測器是否擷取下一指紋影像，當該光學指紋感測器已擷取該下一指紋影像，該處理單元係將該下一指紋影像與該使用者指紋影像進行比對；當該光學指紋感測器未擷取該下一指紋影像，該處理單元係關閉該顯示面板。For example, the electronic device described in item 7 of the scope of patent application, wherein when the processing unit determines that the fingerprint image does not match the user's fingerprint image, the processing unit detects whether the optical fingerprint sensor captures the next Fingerprint image, When the optical fingerprint sensor has captured the next fingerprint image, the processing unit compares the next fingerprint image with the user fingerprint image; When the optical fingerprint sensor does not capture the next fingerprint image, the processing unit closes the display panel.

如申請專利範圍第1項所述之電子裝置，其中當該處理單元執行一指紋註冊程式時，該處理單元係依據該慣性資訊及該觸碰資訊判斷是否要結束該指紋註冊程式。For example, in the electronic device described in item 1 of the scope of patent application, when the processing unit executes a fingerprint registration program, the processing unit determines whether to end the fingerprint registration program based on the inertial information and the touch information.

如申請專利範圍第9項所述之電子裝置，其中當該指紋註冊程式超時時，該處理單元係依據該觸碰資訊判斷該使用者之手部是否還握持該電子裝置，其中當該處理單元判斷該使用者之手部還握持該電子裝置時，該處理單元係延長該指紋註冊程式之執行時間。For example, the electronic device described in item 9 of the scope of patent application, wherein when the fingerprint registration program times out, the processing unit determines whether the user's hand is still holding the electronic device according to the touch information, When the processing unit determines that the user's hand is still holding the electronic device, the processing unit extends the execution time of the fingerprint registration program.

一種使用光學指紋辨識的螢幕亮度控制方法，用於一電子裝置，其中該電子裝置包括一顯示面板、一光學指紋感測器及一感測裝置，且該光學指紋感測器整合至該顯示面板下方，該方法包括：執行一指紋辨識應用程式以讓該電子裝置進入一指紋匹配模式；利用該感測裝置偵測該電子裝置之慣性資訊及該顯示面板之觸碰資訊；當該顯示面板在該指紋匹配模式中處於一關閉狀態時，依據該慣性資訊及該觸碰資訊以判斷一使用者是否欲使用該光學式指紋感測器進行一指紋辨識操作；以及當判斷該使用者欲使用該光學式指紋感測器進行該指紋辨識操作時，在該顯示面板上關於該光學式指紋感測器之一指紋按壓區域顯示一指紋登入圖示，並將該指紋按壓區域設定為一高亮度顯示模式並使該光學指紋感測器擷取該使用者之一指紋影像。A screen brightness control method using optical fingerprint recognition is used in an electronic device, wherein the electronic device includes a display panel, an optical fingerprint sensor and a sensing device, and the optical fingerprint sensor is integrated into the display panel Below, the method includes: Run a fingerprint recognition application to allow the electronic device to enter a fingerprint matching mode; Using the sensing device to detect the inertial information of the electronic device and the touch information of the display panel; When the display panel is in a closed state in the fingerprint matching mode, determine whether a user wants to use the optical fingerprint sensor to perform a fingerprint recognition operation according to the inertial information and the touch information; and When it is determined that the user wants to use the optical fingerprint sensor to perform the fingerprint recognition operation, a fingerprint login icon is displayed on a fingerprint pressing area of the optical fingerprint sensor on the display panel, and the fingerprint The pressing area is set to a high-brightness display mode and the optical fingerprint sensor captures a fingerprint image of the user.

如申請專利範圍第11項所述之使用光學指紋辨識的螢幕亮度控制方法，其中該感測裝置包括：一近接感測器，用以偵測該電子裝置與該使用者之一距離資訊；一加速度計，用以偵測該電子裝置之加速度及位移；一陀螺儀，用以偵測該電子裝置之方向，其中該慣性資訊包括電子裝置之該加速度、該位移及該方向；以及複數個觸碰感測器，設置於該顯示面板之複數個邊緣上，用以偵測使用者接觸該顯示面板之一觸碰資訊以及該使用者之手指之一懸浮動作。As described in item 11 of the scope of patent application, the screen brightness control method using optical fingerprint recognition, wherein the sensing device includes: A proximity sensor for detecting distance information between the electronic device and the user; An accelerometer to detect the acceleration and displacement of the electronic device; A gyroscope for detecting the direction of the electronic device, wherein the inertial information includes the acceleration, the displacement and the direction of the electronic device; and A plurality of touch sensors are arranged on a plurality of edges of the display panel to detect a touch information of the user touching the display panel and a hovering motion of the user's finger.

如申請專利範圍第12項所述之使用光學指紋辨識的螢幕亮度控制方法，更包括：依據該觸碰資訊判斷是否使用者之手部觸碰該顯示面板之該等邊緣的數量是否達到一預定數量及分布；當觸碰該顯示面板之該等邊緣的數量達到該預定數量及分布，判斷該距離資訊是否大於一預定值、且該電子裝置之一傾斜角度是否在一預定操作範圍、且該顯示面板之表面是否朝上；以及當觸碰該顯示面板之該等邊緣的數量未達到該預定數量，將該顯示面板維持在關閉狀態。As described in item 12 of the scope of patent application, the screen brightness control method using optical fingerprint recognition includes: Judging whether the number of the edges of the display panel touched by the user's hand reaches a predetermined number and distribution according to the touch information; When the number of touching the edges of the display panel reaches the predetermined number and distribution, it is determined whether the distance information is greater than a predetermined value, and whether an inclination angle of the electronic device is within a predetermined operating range, and the surface of the display panel Whether it is facing upwards; and When the number of touching the edges of the display panel does not reach the predetermined number, the display panel is maintained in a closed state.

如申請專利範圍第12項所述之使用光學指紋辨識的螢幕亮度控制方法，其中該等觸碰感測器為電容式觸感測器，且該方法更包括：當在該光學指紋感測器之區域內的該等觸碰感測器偵測到電容值由高變低時，判斷該使用者之手指係由上往下進行該懸浮動作。As described in item 12 of the scope of patent application, the screen brightness control method using optical fingerprint recognition, wherein the touch sensors are capacitive touch sensors, and the method further includes: When the touch sensors in the area of the optical fingerprint sensor detect that the capacitance value changes from high to low, it is determined that the user's finger is performing the floating action from top to bottom.

如申請專利範圍第10項所述之使用光學指紋辨識的螢幕亮度控制方法，更包括：當判斷該距離資訊大於該預定值、且該電子裝置之該傾斜角度在該預定操作範圍、且該顯示面板之表面朝上時，在該顯示面板上關於該光學式指紋感測器之該指紋按壓區域顯示該指紋登入圖示，並將該指紋按壓區域設定為該高亮度顯示模式並使該光學指紋感測器擷取該使用者之該指紋影像。As described in item 10 of the scope of patent application, the screen brightness control method using optical fingerprint recognition includes: When it is determined that the distance information is greater than the predetermined value, and the tilt angle of the electronic device is within the predetermined operating range, and the surface of the display panel faces upward, the fingerprint on the display panel is related to the optical fingerprint sensor The pressing area displays the fingerprint login icon, and the fingerprint pressing area is set to the high-brightness display mode and the optical fingerprint sensor captures the fingerprint image of the user.

如申請專利範圍第15項所述之使用光學指紋辨識的螢幕亮度控制方法，更包括：當觸碰該顯示面板之該等邊緣的數量達到2且包含該等邊緣之兩個相鄰邊緣或兩個相對邊緣，判斷觸碰該顯示面板之該等邊緣的數量達到該預定數量及分布。As described in item 15 of the scope of patent application, the screen brightness control method using optical fingerprint recognition includes: When the number of the edges touching the display panel reaches 2 and includes two adjacent edges or two opposite edges of the edges, it is determined that the number of the edges touching the display panel reaches the predetermined number and distribution.

如申請專利範圍第11項所述之使用光學指紋辨識的螢幕亮度控制方法，更包括：將該指紋影像與該電子裝置中之一指紋資料庫中預先儲存的的一或多張使用者指紋影像進行比對；當判斷該指紋影像符合該使用者指紋影像時，判斷通過指紋驗證，並關閉該指紋按壓區域之該高亮度顯示模式及喚醒該顯示面板以進入一操作畫面；以及將該操作畫面之亮度恢復至該顯示面板之一先前亮度設定。As described in item 11 of the scope of patent application, the screen brightness control method using optical fingerprint recognition includes: Comparing the fingerprint image with one or more user fingerprint images pre-stored in a fingerprint database in the electronic device; When it is judged that the fingerprint image matches the user's fingerprint image, it is judged that the fingerprint verification is passed, and the high-brightness display mode of the fingerprint pressing area is turned off and the display panel is awakened to enter an operation screen; and Restore the brightness of the operation screen to a previous brightness setting of the display panel.

如申請專利範圍第17項所述之使用光學指紋辨識的螢幕亮度控制方法，更包括：當判斷該指紋影像不符合該使用者指紋影像時，偵測是否有該光學指紋感測器是否擷取下一指紋影像；當該光學指紋感測器已擷取該下一指紋影像，將該下一指紋影像與該使用者指紋影像進行比對；以及當該光學指紋感測器未擷取該下一指紋影像，關閉該顯示面板。As described in item 17 of the scope of patent application, the screen brightness control method using optical fingerprint recognition includes: When determining that the fingerprint image does not match the user's fingerprint image, detect whether the optical fingerprint sensor captures the next fingerprint image; When the optical fingerprint sensor has captured the next fingerprint image, compare the next fingerprint image with the user fingerprint image; and When the optical fingerprint sensor does not capture the next fingerprint image, the display panel is closed.

如申請專利範圍第11項所述之使用光學指紋辨識的螢幕亮度控制方法，更包括：當該處理單元執行一指紋註冊程式時，該處理單元係依據該慣性資訊及該觸碰資訊判斷是否要結束該指紋註冊程式。As described in item 11 of the scope of patent application, the screen brightness control method using optical fingerprint recognition includes: When the processing unit executes a fingerprint registration program, the processing unit determines whether to end the fingerprint registration program according to the inertial information and the touch information.

如申請專利範圍第19項所述之使用光學指紋辨識的螢幕亮度控制方法，更包括：當該指紋註冊程式超時時，依據該觸碰資訊判斷該使用者之手部是否還握持該電子裝置；以及當判斷該使用者之手部還握持該電子裝置時，延長該指紋註冊程式之執行時間。As described in item 19 of the scope of patent application, the screen brightness control method using optical fingerprint recognition includes: When the fingerprint registration program times out, determine whether the user's hand is still holding the electronic device according to the touch information; and When it is determined that the user's hand is still holding the electronic device, the execution time of the fingerprint registration program is extended.