201201045 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種背光調節系統及方法。 【先前彳支術】 [0002] 目前，手機、PDA、媒體播放器以及數位相機等大多數手 持電子裝置。都使用電池供電。電子裝置的待機時間一直 都是設計時的一個重要指標。為了延長待機時間，除了 增加電池的容量外，盡可能的降低電子裝置中各部件的 耗電量也是延長待機時間的一種重要方法，例如，在白 天明亮環境下使用電子裝置時，將電子裝置顯示螢幕的 背光亮度調低，可大幅的減少電子裝置的耗電量。因此 ，在不同的使用環境下恰當的調節電子裝置顯示螢幕的 背光亮度可有效的減少電子裝置的耗電量，從而延長待 機時間。然而，對傳統電子裝置顯示螢幕的背光亮度進 行調節時，需要進入到背光亮度的設置介面才能對背光 亮度的等級進行設置，這樣的操作方式顯得尤其繁瑣。 例如，當用戶需要使用電子裝置顯示螢幕的背光在黑暗 中尋找東西時，則希望將背光亮度調高，這時則需要進 入到背光亮度的設置介面進行設置，待使用完以後，再 回到該設置介面將背光亮度調回之前的狀態，操作起來 相當複雜。 【發明内容】 [0003] 鑒於以上内容，有必要提供一種背光調節系統及方法， 其可透過電子裝置的侧鍵並配合使用該電子裝置内置的 重力感測器來調節顯示螢幕的背光亮度。 099121377 表單編號Α0101 第4頁/共16頁 0992037669-0 201201045 [0004] 所述背光調節系統 置中，該電子裝f ，運行於配置有重力感測器的電子裝 包括一個上側鍵和一個下側鍵。該系 統包括：__，用於檢測所述上側鍵或下側鍵是否 ㈣該上侧鍵或下侧鍵被按下時，檢 測電子裝置中是否有特定的應用程式在運行；感測器控 制模組，用於當檢測到電子裝置中沒有特錢、用程式在 運行時，控制所述重力感測器去獲取重力加速度在該電 Ο [0005] 子裝置的顯示螢慕·戶斤在平面上的分量，为光调知模組’ 用於根據所獲取的重力加速度在所述顯示螢幕所在平面 上的分量判斷電子裝置是否處於賢哀狀態，及當判定該 電子裝置處於萱直狀態時’根據所按下的上側鍵或下侧 鍵對所述顯示螢幕的背光壳度進行調節。 所述背光調節方法’運行於配置有重力感測器的電子裝 Ο 置中，該電子裝置包括一個上側鍵和一個下侧鍵。該方 法包括步驟：（al )檢測所述上側鍵或下侧鍵是否被按 下，以及當檢測到該上側鍵或下側鍵被按下時，檢測電 子裝置中是否有特定的應用程式在運行；（a2 )當檢測 到電子裝置中沒有特定應用程式在運行時，控制所述重 力感測器去獲取重力加速度在該電子裝置的顯示螢幕所 在平面上的分量；（a3)根據所獲取的重力加速度在所 述顯示螢幕所在平面上的分量判斷電子裝置是否處於暨 直狀態；U4)當判定該電Μ置處於豎直狀態時，根 據所按:的上側鍵或下側鍵對所述顯示螢幕的背光亮度 分银知〇 [0006] 相較於習知技術 所述方光調節系統及方法，透過電子 099121377 表單煸號A0101 頁 0992037669-0 201201045 裝置的侧鍵並配合使用該電子裝置内置的重力感測器來 調節顯示螢幕的背光亮度，使得用戶無需進人到電子裝 置顯示榮幕的背光亮度設置介面即可對顯示螢幕的背光 亮度進行調節，方便了用戶的使用’並增強了電子裝置 的使用彈性。 【實施方式】 [0007] [0008] 如圖1所示，係本發明背光調節系統運行的硬體架構圖。 該背光調節系統1〇運行於電子裝置！中。電子裝置i還包 括顯示螢幕2、記憶體11、處理器12、上側鍵13、下側鍵 14以及重力感測& (G-sensc)T) 15。在本較佳實施例中 ’所述電子裝置1可以是’但不限於’手機、數位相機、 媒體播放器以及個人數位助理（PDA)等可檇式電子設備 所述重力感測器1 5根據設計需要可安裝在電子裝置丨的任 意位置處，以感測重力加速度在電子裝置i的顯示螢幕2 所在平面上的分量。如圖2所示，假設電子裝置1處於三 維空間坐標系OXYZ中，其中，XOY平面即為顯示螢幕2所 在的平面。在本實施例中，重力感測器15可為一個三軸 重力感測器，將該重力感測器15安裝在電子裝置1的一個 特定位置處’使得該重力感測器15的三軸分別與〇χ方向 、OY方向以及OZ方向重合或平行’那麼該重力感測器15 所測得的在OY方向上的重力加速度分量即為所述顯示榮 幕2所在平面的重力加速度分量。例如，當電子裝置1登 直擺放時，所述重力感測器1 5所測得的重力加速度在坐 標系OXYZ的坐標軸方向的分量為（〇，-g，〇)，其中， 099121377 表單編號A0101 第6頁/共16頁 0992037669-0 201201045 ox柏方向的分量為〇;ογ轴方向的分量為_§，其與重h 速度4目同，方向相反，g的取值根據不同的地理區 有不5的取值’在本實施例中’取g的值為9. 8N/kg ; 〇z 袖方°的刀置為〇°债測重力加迷度在顯示勞幕2所在平 面^的分量是為了方便後續對顯示勞幕2的背光亮度進行 調節，其作用將在後續的說明中做進一步的說明。 闺所m調料、統刚於結合所述上舰13、下侧鍵“ 以及重力感測器15對所述顯示鸯幕2的背光亮度進行調節 。該背調節系統10包括檢測模組m、感測器控制模組 l〇2 i光調節模組1〇3以及執行模組1〇4。在本實施例 中’該背柄料統10以㈣程式或齡_式安裝在 所述記憶體u中或固化於電子裂置】的作業系統中，並由 所述處理器12來控制該背光調節系統1()的執行。所述上 側鍵13以及下側鍵14應用在電子裝置丨中還可對該電子裝 置1的通話音量、影音播放音量以及拍照模式下的鏡頭焦 距等進行調節。下面結合圖3對以上各功^模組以及電子 裝置1中的各硬體部分進行詳細介紹。 [0010] 如圖3所示，係本發明背光調節方法較佳實施例的流程圖 〇 [0011] 步驟SOI，所述電子裝置1啟動’處於正常工作狀態。 [0012] 步驟S02，所述檢測模組101檢測所述上側鍵丨3或下側鍵 14是否被按下。 [0013] 當檢測到上側鍵13或下側鍵14被按下時，於步驟s〇3中， 所述檢測模組101檢測電子裝置1中是否有特定的應用程 099121377 表單編號A0101 第7頁/共16頁 0992037669-0 201201045 式在運行，若有特定的應用程式在運行，則執行步驟S 0 7 ，若沒有特定的應用程式在運行，則執行步驟S04。在本 較佳實施例中，所述特定的應用程式包括，但不限於， 影音播放應用程式以及拍照應用程式。 [0014] 步驟S04，所述感測器控制模組102控制所述重力感測器 15去獲取重力加速度在所述顯示螢幕2所在平面上的分量 ，也即圖2所示0Υ轴方向的重力加速度分量。 [0015] 步驟S05，所述背光調節模組103根據所獲取的重力加速 度在顯示螢幕2所在平面上的分量判斷所述電子裝置1是 否處於豎直狀態，若判斷該電子裝置1處於豎直狀態，則 執行步驟S06，若判斷該電子裝置1未處於豎直狀態，則 執行步驟S08。具體而言，當所述重力加速度在顯示螢幕 2所在平面上的分量大小與該重力加速度的大小相等或相 差很小時，則可判定所述電子裝置1處於豎直狀態。例如 ，當所述重力加速度在顯示螢幕2所在平面上的分量大小 處於9. ON/kg至9. 8N/kg之間，則可判定該電子裝置1處 於豎直狀態。 [0016] 步驟S06，所述背光調節模組103根據步驟S02中所按下 的側鍵對所述顯示螢幕2的背光亮度進行調節，然後結束 流程。具體地，若步驟S02中被按下的側鍵為上側鍵13， 該背光調節模組103則將顯示螢幕2的背光亮度調高，若 步驟S02中被按下的側鍵為下侧鍵14，該背光調節模組 103則將顯示螢幕2的背光亮度調低。 [0017] 步驟S07，所述執行模組104控制電子裝置1執行所述特定 099121377 表單編號A0101 第8頁/共16頁 0992037669-0 201201045 [0018] Ο [0019] Ο [0020] 應用程式運行狀態下的側鍵功能後直接結束流程。例如 ，當該電子裝置1當前正在運行的特定應用程式為影音播 放應用程式，該執行模組104則控制電子裝置1調高或調 低該電子裝置1的輸出音量；若該電子裝置1當前正在運 行的特定應用程式為拍照應用程式，該執行模組104則控 制電子裝置1調遠或調近該電子裝置1的鏡頭焦距。 步驟S08，所述執行模組104控制電子裝置1執行該電子裝 置1在待機狀態下的侧鍵功能後結束流程。例如，若該電 子裝置1在待機狀態下的侧鍵功能為調節該電子裝置1的 通話音量，該執行模组104則控制電子裝置1調大或調小 該電子裝置1的通話音量。 綜上所述，當所述電子裝置1處於豎直狀態時，所述上側 鍵13以及下側鍵14可用來調整所述顯示螢幕2的背光亮度 。若在豎直狀態下電子裝置1中有特定的應用程式在運行 ，該上侧鍵13以及下側鍵14則不能用於調整顯示螢幕2的 背光亮度。實施本發明，可增加該電子裝置1的侧鍵功能 ，同時與重力感測器15相結合，可避免該電子裝置1各側 鍵功能之間的衝突。 綜上所述，本發明符合發明專利要件，爰依法提出專利 申請。惟，以上所述者僅爲本發明之較佳實施例，本發 明之範圍並不以上述實施例爲限，舉凡熟悉本案技藝之 人士援依本發明之精神所作之等效修飾或變化，皆應涵 蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1係為本發明背光調節系統運行的硬體架構圖。 099121377 表單編號Α0101 第9頁/共16頁 0992037669-0 [0021] 201201045 [0022] 圖2係為本發明較佳實施例中電子裝置在三維空間坐標系 中與重力感測器相對位置的一個示意圖。 [0023] 圖3係為本發明背光調節方法較佳實施例的流程圖。 【主要元件符號說明】 [0024] 電子裝置1 [0025] 背光調節系統10 [0026] 檢測模組1 01 [0027] 感測器控制模組102 [0028] 背光調節模組103 [0029] 執行模組104 [0030] 記憶體11 [0031] 處理器12 [0032] 顯示螢幕2 [0033] 上側鍵13 [0034] 下側鍵14 [0035] 重力感測器1 5 0992037669-0 099121377 表單編號A0101 第10頁/共16頁201201045 VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a backlight adjustment system and method. [Previous sputum] [0002] At present, most handheld electronic devices such as mobile phones, PDAs, media players, and digital cameras. Both are powered by batteries. The standby time of electronic devices has always been an important indicator of design time. In order to extend the standby time, in addition to increasing the capacity of the battery, it is also an important method to extend the standby time by reducing the power consumption of various components in the electronic device. For example, when the electronic device is used in a bright environment during the day, the electronic device is displayed. The brightness of the backlight of the screen is lowered, which can greatly reduce the power consumption of the electronic device. Therefore, properly adjusting the backlight brightness of the display screen of the electronic device under different use environments can effectively reduce the power consumption of the electronic device, thereby prolonging the waiting time. However, when the backlight brightness of the display screen of the conventional electronic device is adjusted, it is necessary to enter the setting interface of the backlight brightness to set the level of the backlight brightness, which is particularly cumbersome. For example, when the user needs to use the electronic device to display the backlight of the screen to find something in the dark, it is desirable to increase the brightness of the backlight. In this case, it is necessary to enter the setting interface of the backlight brightness to set, and then return to the setting after the use is completed. The interface adjusts the brightness of the backlight back to its previous state, which is quite complicated to operate. SUMMARY OF THE INVENTION [0003] In view of the above, it is necessary to provide a backlight adjustment system and method that can adjust the backlight brightness of a display screen through a side key of an electronic device and a gravity sensor built in the electronic device. 099121377 Form No. 101 0101 Page 4 / Total 16 Page 0992037669-0 201201045 [0004] The backlight adjustment system is centered, and the electronic device is mounted on an electronic device equipped with a gravity sensor including an upper side key and a lower side. key. The system includes: __, for detecting whether the upper side key or the lower side key is (4) detecting whether a specific application is running in the electronic device when the upper side key or the lower side key is pressed; the sensor control mode a group, configured to control the gravity sensor to obtain a gravitational acceleration at the time of detecting that the electronic device has no special money, and the program is in operation, the display of the sub-device is on the plane The component of the light modulating module is configured to determine whether the electronic device is in a sacred state according to the obtained component of the gravity acceleration on the plane of the display screen, and when determining that the electronic device is in a straight state, The pressed upper side button or lower side button adjusts the backlight casing of the display screen. The backlight adjustment method ' operates in an electronic device configured with a gravity sensor, the electronic device including an upper side key and a lower side key. The method includes the steps of: (al) detecting whether the upper side key or the lower side key is pressed, and detecting whether a specific application is running in the electronic device when the upper side key or the lower side key is detected to be pressed (a2) controlling the gravity sensor to acquire a component of gravity acceleration on a plane of the display screen of the electronic device when no specific application is detected in the electronic device; (a3) according to the acquired gravity The component of the acceleration on the plane of the display screen determines whether the electronic device is in the straight state; U4) when it is determined that the power device is in the vertical state, the display screen is displayed according to the upper side key or the lower side key pressed: The brightness of the backlight is different from that of the electronic device. [0006] Compared with the conventional light adjustment system and method of the prior art, through the electronic key 099121377 form A0101 page 0992037669-0 201201045 device side key and use the built-in gravity of the electronic device The sensor adjusts the brightness of the backlight of the display screen, so that the user does not need to enter the electronic device to display the backlight brightness setting interface of the honor screen to display the screen The backlight is adjusted to make it easier for the user to use and enhance the flexibility of the electronic device. [Embodiment] [0007] [0008] As shown in FIG. 1, it is a hardware architecture diagram of the operation of the backlight adjustment system of the present invention. The backlight adjustment system 1〇 operates on the electronic device! in. The electronic device i further includes a display screen 2, a memory 11, a processor 12, an upper side key 13, a lower side key 14, and a gravity sensing & (G-sensc) T) 15. In the preferred embodiment, the electronic device 1 may be, but not limited to, a portable electronic device such as a mobile phone, a digital camera, a media player, and a personal digital assistant (PDA). The gravity sensor 15 is based on The design needs to be mountable at any position of the electronic device , to sense the component of the gravitational acceleration on the plane of the display screen 2 of the electronic device i. As shown in Fig. 2, it is assumed that the electronic device 1 is in the three-dimensional space coordinate system OXYZ, wherein the XOY plane is the plane on which the display screen 2 is located. In this embodiment, the gravity sensor 15 can be a three-axis gravity sensor, and the gravity sensor 15 is mounted at a specific position of the electronic device 1 such that the three axes of the gravity sensor 15 are respectively The gravitational acceleration component in the OY direction measured by the gravity sensor 15 is the gravitational acceleration component of the plane in which the display of the glory 2 is located, coincident with or parallel to the 〇χ direction, the OY direction, and the OZ direction. For example, when the electronic device 1 is placed upright, the component of the gravitational acceleration measured by the gravity sensor 15 in the coordinate axis direction of the coordinate system OXYZ is (〇, -g, 〇), wherein, the 099121377 form No. A0101 Page 6 of 16 0992037669-0 201201045 The component of the ox cypress direction is 〇; the component of the γ axis direction is _§, which is the same as the weight h velocity 4, the direction is opposite, and the value of g depends on different geography. The value of the area has a value of 5, in the present embodiment, the value of g is 9. 8 N/kg; the knife of the 〇z sleeve is set to 〇°, and the gravity of the debt is added to the plane of the screen 2 The component is to facilitate subsequent adjustment of the backlight brightness of the display screen 2, and its function will be further explained in the following description. Adjusting the brightness of the backlight of the display curtain 2 in combination with the upper ship 13, the lower side button and the gravity sensor 15. The back adjustment system 10 includes a detection module m, a sense The sensor control module 102i light adjustment module 1〇3 and the execution module 1〇4. In the present embodiment, the handle system 10 is mounted in the memory u in a (4) program or age. The operation of the backlight adjustment system 1 is controlled by the processor 12. The upper side key 13 and the lower side key 14 are also applied to the electronic device. The call volume, the video playback volume, and the focal length of the lens in the photographing mode are adjusted. The hardware modules in the above and the hardware components in the electronic device 1 are described in detail below with reference to FIG. As shown in FIG. 3, it is a flowchart of a preferred embodiment of the backlight adjustment method of the present invention. [0011] Step SOI, the electronic device 1 is activated to be in a normal working state. [0012] Step S02, the detecting module 101 detects whether the upper side key 3 or the lower side key 14 is pressed. [0013] When it is detected that the upper side key 13 or the lower side key 14 is pressed, in step s3, the detecting module 101 detects whether there is a specific application in the electronic device 1 099121377 Form No. A0101 Page 7 / Total 16 pages 0992037669-0 201201045 The mode is running, if a specific application is running, step S0 7 is executed, if no specific application is running, step S04 is performed. In the preferred embodiment, The specific application includes, but is not limited to, a video playback application and a camera application. [0014] Step S04, the sensor control module 102 controls the gravity sensor 15 to acquire the gravity acceleration at the location. The component on the plane of the screen 2 is displayed, that is, the gravity acceleration component in the 0-axis direction shown in Fig. 2. [0015] Step S05, the backlight adjustment module 103 displays the screen of the screen 2 according to the acquired gravity acceleration. The component determines whether the electronic device 1 is in a vertical state, and if it is determined that the electronic device 1 is in a vertical state, step S06 is performed, and if it is determined that the electronic device 1 is not in a vertical state, Step S08. Specifically, when the magnitude of the gravity acceleration on the plane of the display screen 2 is equal to or different from the magnitude of the gravity acceleration, it may be determined that the electronic device 1 is in a vertical state. For example, when The magnitude of the component of the gravitational acceleration on the plane of the display screen 2 is between 9. ON/kg and 9.8 N/kg, and the electronic device 1 can be determined to be in a vertical state. [0016] Step S06, the backlight The adjustment module 103 adjusts the backlight brightness of the display screen 2 according to the side key pressed in step S02, and then ends the flow. Specifically, if the side key pressed in step S02 is the upper side key 13, the backlight adjustment module 103 increases the brightness of the backlight of the display screen 2, if the side key pressed in step S02 is the lower side key 14 The backlight adjustment module 103 lowers the backlight brightness of the display screen 2. [0017] Step S07, the execution module 104 controls the electronic device 1 to execute the specific 099121377 Form No. A0101 Page 8/16 pages 0992037669-0 201201045 [0018] Ο [0020] Ο [0020] Application running status The process is terminated directly after the side key function. For example, when the specific application currently running by the electronic device 1 is an audio and video playback application, the execution module 104 controls the electronic device 1 to increase or decrease the output volume of the electronic device 1; if the electronic device 1 is currently The specific application that runs is a camera application, and the execution module 104 controls the electronic device 1 to adjust or adjust the lens focal length of the electronic device 1. In step S08, the execution module 104 controls the electronic device 1 to execute the side key function of the electronic device 1 in the standby state, and then ends the flow. For example, if the side key function of the electronic device 1 in the standby state is to adjust the call volume of the electronic device 1, the execution module 104 controls the electronic device 1 to increase or decrease the call volume of the electronic device 1. In summary, when the electronic device 1 is in the vertical state, the upper side key 13 and the lower side key 14 can be used to adjust the backlight brightness of the display screen 2. If a specific application is running in the electronic device 1 in the vertical state, the upper side key 13 and the lower side key 14 cannot be used to adjust the backlight brightness of the display screen 2. By implementing the present invention, the side key function of the electronic device 1 can be increased, and in combination with the gravity sensor 15, collision between the side key functions of the electronic device 1 can be avoided. In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are It should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a hardware architecture diagram of the operation of the backlight adjustment system of the present invention. 099121377 Form No. 1010101 Page 9/16 pages 0992037669-0 [0021] FIG. 2 is a schematic diagram showing the relative position of an electronic device to a gravity sensor in a three-dimensional space coordinate system according to a preferred embodiment of the present invention. . 3 is a flow chart of a preferred embodiment of the backlight adjustment method of the present invention. [Main Component Symbol Description] [0024] Electronic Device 1 [0025] Backlight Adjustment System 10 [0026] Detection Module 1 01 [0027] Sensor Control Module 102 [0028] Backlight Adjustment Module 103 [0029] Execution Mode Group 104 [0030] Memory 11 [0031] Processor 12 [0032] Display Screen 2 [0033] Upper Side Key 13 [0034] Lower Side Key 14 [0035] Gravity Sensor 1 5 0992037669-0 099121377 Form No. A0101 10 pages / total 16 pages