•1302092 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種數位相框。 【先前技術】 因數位相機具有使用方便且可藉由數位相機本身或 個人電腦實現數位相片之觀看功能，而受到市場的廣泛 吾愛。然許多數位相片均係儲存在記憶卡、唯讀光碟機 或個人電腦中，而無法被直接觀看。因此，業界開發出 種可讓使用者藉由外觀設計如相框形狀之數位相框， 以列印品質來儲存、展示及分享數位照片。• 1302092 IX. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a digital photo frame. [Prior Art] A factor-based camera is widely used in the market because it is easy to use and can be used to view digital photos by a digital camera itself or a personal computer. However, many digital photos are stored on a memory card, CD-ROM or PC, and cannot be viewed directly. As a result, the industry has developed a digital photo frame that allows users to store, display and share digital photos with print quality through digital photo frames in the shape of a photo frame.
請一併參閱圖1及圖2,圖丄係一種先前技術數位相 2之立體結構示意圖，圖2係圖丄所示數位相框之爆炸示 思圖。該數位相框10包括一前框體、一顯示單元12、 一第一驅動電路板13、一第二驅動電路板14、一第三驅動 電路板15、一後殼體17及一支撐架18。該前框體u盥該 後殼體17相互配合收容該顯示單元12、該第一驅動電路 板13、該第二驅動電路板14及該第三驅動電路板u。該 支撐架18藉由一鎖固結構19安裝於該後殼體17上。/ 該第一驅動電路板13係該數位相框1〇之主控制電路 板，其包括一主控制晶片（圖未示）及一供電電路（圖未示 =主控制晶片用於處理分析靜態圖片資料，並控制該顯示 早兀12對該靜態圖片資料進行顯示。該供 堪動電，板13、該第二權動電路板14及該第三 板15提供所需之工作電壓。 Ί302092 該第二驅動電路板14用於控制該顯示單元12之背光 光源，其藉由複數連接線（圖未示）或軟性電路板（圖未示） 與該第一驅動電路板13之供電電路及該顯示單元12實現 電連接。 該第三驅動電路板15包括一時序控制器（圖未示）及一 轉接板（圖未示），該時序控制器依次經由該第三驅動電路 板15之複數電路走線（圖未示）及該轉接板連接至該第一驅 動電路板13之供電電路及主控制晶片，使該主控制晶片將 _處理分析之靜態圖片資料依據控制時序輸出至該顯示單元 12。該轉接板可為一印刷電路板或一軟性電路板。 由於前述數位相框10之第一驅動電路板13之主控制 晶片僅具有處理分析靜態圖片資料之單一功能，且其輸出 資料亦需經由該第三驅動電路板15之轉接板實現與時序 控制器之電連接。另，由於供電電路設置在該第二驅動電 路板14上，若要為其它電路供電，還需藉由連接線或軟性 電路板才可實現。因此，該數位相框10之功能單一且電路 _結構複雜，無法適應市場輕薄化及多功能化之需求。 【發明内容】 有鑑於此，提供一種多功能且電路結構簡單之數位相 框實為必要。 一種數位相框，其包括一顯示單元及一驅動電路板。 該驅動電路板包括一背光驅動電路、一第一存儲單元、一 主控制晶片及一時序控制器。該背光驅動電路為該顯示單 元之背光光源提供工作電壓。該第一存儲單元用於存放靜 Ί302092 態圖片、動態影像及音頻資料。該主控制晶片處理該第一 存儲單元存儲之靜態圖片、動態影像及音頻資料，進而得 '到適合該顯示單元顯示之圖形資料訊號以及供該數位相框 播放之音頻訊號。該時序控制器將該主控制晶片輸出之圖 形資料訊號依據時序控制輸出至該顯示單元，使該顯示單 元顯示該靜態圖片或該動態影像。 相較於先前技術，由於該數位相框之主控制晶片處理 功能增強，即可處理靜態圖片、動態影像以及音頻資料， _使該數位相框具備靜態圖片顯示、動態影像顯示、音頻播 放之功能，達到真正意義之多功能化。並且，在實現前述 功能之同時，所有電路結構均設置於該驅動電路板上，並 藉由該驅動電路板本身之電路走線實現各電路結構間之電 連接，從而避免使用複數驅動電路板造成體積較大，以及 利用複數連接線或軟性電路板進行電連接而導致電路複雜 之問題，達到輕薄化及電路結構簡單化之目的。 【實施方式】 * 請參閱圖3，係本發明數位相框一較佳實施方式之爆 炸結構示意圖。該數位相框20包括一前框體21、一顯示 單元22、一驅動電路板23、二放音單元24、一後殼體30 及一支撐架31。該前框體21與該後殼體30相互配合收容 該顯示單元22、該驅動電路板23及該二放音單元24。該 支撐架31藉由一鎖固結構32安裝於該後殼體30上。 請一併參閱圖4，係圖3所示數位相框20之驅動電路 板23之電路框圖。該驅動電路板23用於驅動該數位相框 1302092 20之顯示單元22及該二放音單元24，其包括一功能處理 模塊25、一供電模塊26、一時序控制器27、一背光驅動 電路28及複數輸入/輸出介面29。該供電模塊26為該功 能處理模塊25、該時序控制器27及背光驅動電路28之各 電路提供工作電壓。該背光驅動電路28用於驅動該顯示單 元22之背光。各電路模塊間藉由驅動電路板23自身之走 線進行電連接。 該複數輸入/輸出介面29係該數位相框20與外設裝置 •進行通訊之交互介面，其通常設置於該驅動電路板23之邊 側，包括複數接口與插槽，該複數接口可為視頻線接口、 萬用串列匯流排（Universal Serials Bus，USB)接口及影像 圖形陣列（Video Graphics Array，VGA)接口等，該複數插 槽係記憶卡（Micro Driver)存儲設備與功能處理模塊25進 行資料通訊之傳輸通道，其可插取諸如CF卡（Compact Flash)、快閃記憶卡（Memory Stick，MS)、多媒體存儲卡 (Multi Media Card，MMC)、SM 記憶卡（Smart Media)及安 修全數位記憶卡（Secured Digital，SD)等各種形式之記憶卡。 該功能處理模塊25包括一主控制晶片251、一第一快 閃記憶體252、一第二快閃記憶體253、一第三快閃記憶體 254、一時鐘發生器255、一音頻編碼器256、一遙控感應 器257及一控件電路板258。該遙控感應器257接收來自 遙控裝置（圖未示）發出之控制訊號，並經該控制訊號傳送 至該主控制晶片251。該控件電路板258控制設置於該前 框體21上之控件（圖未示），當用戶選定某一控件時，其將 1302092 發出一對應控制訊號至該主控制晶片251。該第一快閃記 憶體252存儲該主控制晶片251之各種動作程式。該第二 快閃記憶體253通常為一雙倍資料傳輸率⑺⑽…⑽Please refer to FIG. 1 and FIG. 2 together. FIG. 2 is a schematic diagram of a three-dimensional structure of a digital phase 2 of the prior art, and FIG. 2 is an exploded view of a digital photo frame shown in FIG. The digital photo frame 10 includes a front frame, a display unit 12, a first driving circuit board 13, a second driving circuit board 14, a third driving circuit board 15, a rear housing 17, and a support frame 18. The front housing 17 cooperates with the rear housing 17 to receive the display unit 12, the first driving circuit board 13, the second driving circuit board 14, and the third driving circuit board u. The support frame 18 is mounted to the rear housing 17 by a locking structure 19. The first driving circuit board 13 is a main control circuit board of the digital photo frame 1 , and includes a main control chip (not shown) and a power supply circuit (not shown = main control chip is used for processing and analyzing static picture data) And controlling the display to display the still picture data as early as 12. The power supply, the board 13, the second power circuit board 14 and the third board 15 provide a required working voltage. Ί302092 The second The driving circuit board 14 is configured to control the backlight source of the display unit 12, and the power supply circuit of the first driving circuit board 13 and the display unit by a plurality of connecting lines (not shown) or a flexible circuit board (not shown) The third driving circuit board 15 includes a timing controller (not shown) and an adapter board (not shown), and the timing controller sequentially passes through the plurality of circuits of the third driving circuit board 15. a line (not shown) and the adapter board are connected to the power supply circuit of the first driving circuit board 13 and the main control chip, so that the main control chip outputs the still picture data of the processing analysis to the display unit 12 according to the control timing. This The adapter board can be a printed circuit board or a flexible circuit board. Since the main control chip of the first driving circuit board 13 of the digital photo frame 10 has only a single function for processing and analyzing static picture data, the output data also needs to pass through the The adapter board of the third driving circuit board 15 is electrically connected to the timing controller. In addition, since the power supply circuit is disposed on the second driving circuit board 14, if other circuits are to be powered, it is also required to be connected or soft. Therefore, the digital photo frame 10 has a single function and a complicated circuit structure, which cannot meet the requirements of market thinning and multi-functionality. [Invention] In view of the above, a multi-functional and simple circuit structure is provided. A digital photo frame is really necessary. A digital photo frame includes a display unit and a driving circuit board. The driving circuit board includes a backlight driving circuit, a first memory unit, a main control chip and a timing controller. The circuit provides a working voltage for the backlight source of the display unit. The first storage unit is configured to store a static 302092 state picture, Image and audio data. The main control chip processes the still picture, the dynamic image and the audio data stored in the first storage unit, and then obtains a graphic data signal suitable for display by the display unit and an audio signal for playing by the digital photo frame. The timing controller outputs the graphic data signal outputted by the main control chip to the display unit according to the timing control, so that the display unit displays the still picture or the dynamic image. Compared with the prior art, the main control chip processing of the digital photo frame is processed. With enhanced functions, it can process still pictures, motion pictures and audio data, _ make the digital photo frame have the functions of static picture display, dynamic image display and audio playback, and achieve the real multi-functionality. Moreover, while realizing the aforementioned functions All circuit structures are disposed on the driving circuit board, and electrical connections between the circuit structures are realized by circuit traces of the driving circuit board itself, thereby avoiding a large volume caused by using a plurality of driving circuit boards, and using a plurality of connections Wire or flexible circuit board is electrically connected The problem of complicated circuit is to achieve thinness and simplification of circuit structure. [Embodiment] * Please refer to FIG. 3, which is a schematic diagram of a blast structure of a preferred embodiment of the digital photo frame of the present invention. The digital photo frame 20 includes a front frame 21, a display unit 22, a driving circuit board 23, two playback units 24, a rear housing 30 and a support frame 31. The front housing 21 and the rear housing 30 cooperate to receive the display unit 22, the driving circuit board 23, and the two playback units 24. The support frame 31 is mounted to the rear housing 30 by a locking structure 32. Please refer to FIG. 4 together, which is a circuit block diagram of the driving circuit board 23 of the digital photo frame 20 shown in FIG. The driving circuit board 23 is configured to drive the display unit 22 of the digital photo frame 1302092 20 and the two sound emitting units 24, and includes a function processing module 25, a power supply module 26, a timing controller 27, a backlight driving circuit 28, and Complex input/output interface 29. The power supply module 26 provides operating voltages for each of the functional processing module 25, the timing controller 27, and the backlight driving circuit 28. The backlight driving circuit 28 is for driving the backlight of the display unit 22. The circuit modules are electrically connected by the wiring of the drive circuit board 23 itself. The complex input/output interface 29 is an interactive interface for the digital photo frame 20 and the peripheral device to communicate with each other. It is usually disposed on the side of the driving circuit board 23, and includes a plurality of interfaces and slots. The complex interface can be a video cable. The interface, the Universal Serials Bus (USB) interface, and the Video Graphics Array (VGA) interface, etc., the plurality of slots are memory card (Micro Driver) storage devices and function processing modules 25 for data Communication transmission channel, such as CF card (Compact Flash), Flash Memory Card (MS), Multimedia Memory Card (MMC), SM Memory Card (Smart Media) and Security Various types of memory cards such as Secured Digital (SD). The function processing module 25 includes a main control chip 251, a first flash memory 252, a second flash memory 253, a third flash memory 254, a clock generator 255, and an audio encoder 256. A remote control sensor 257 and a control circuit board 258. The remote sensor 257 receives a control signal from a remote control device (not shown) and transmits the control signal to the main control chip 251 via the control signal. The control circuit board 258 controls a control (not shown) disposed on the front frame 21. When the user selects a certain control, it sends a corresponding control signal to the main control chip 251. The first flash memory 252 stores various operating programs of the main control chip 251. The second flash memory 253 is usually a double data transmission rate (7) (10)...(10)
Rate，DDR)之隨機存儲記憶體，其具有資料傳輸速率快之 特點。該第三快閃記憶體254存儲外設裝置，如個人電腦， 經由該^入/輸出介面29之接口部輸入之各種靜態圖片資 料、動悲影像資料及音頻資料。該主控制晶片251具有處 理靜態圖片：身料、動態影像資料及音頻資料之功能，其依 靜據該遙控感應器257或控件電路板258發出之控制訊號， 分別自該第一快閃記憶體252及該第三快閃記憶體乃4或 口又置於插槽之$己憶卡中調用相應動作程式及靜態圖片資 料、動態影像資料或音頻資料，並將該相應動作程式寫入 該第一快閃記憶體253中進行運行，進而將該靜態圖片資 料及該動態影像資料轉化成紅、綠、藍三色之圖形資料訊 號傳送至該時序控制器27，該時序控制器27使該圖形資 料訊號依據時序控制輸出至該顯示單元22。同時，該主控 ®制晶片251還將該音頻資料轉化為數位訊號傳送至該音頻 編碼器256，該音頻編碼器256將該數位訊號轉化為類比 訊號以供該二放音單元24放音，從而實現對靜態圖片資 料、動態影像資料以及音頻資料之顯示與播放功能。在播 放前述資料之同時，該主控制晶片251亦可發出一觸發訊 號開啟該時鐘發生器255,使該顯示單元22顯示當前時間。 該供電模塊26包括一供電電路261、一内置電池電路 262及一開關電路263。該供電電路261將輸入電壓轉換為 11 1302092 各電路所需之工作電壓，如該主控制電路251所需之+3.3V 及+1.8V工作電壓、該背光驅動電路28所需之+5V工作電 〜 壓。用戶可藉由一外接電源對該内置電池電路262進行充 電，亦可藉由該開關電路263選擇由外接電源還是内置電 池電路262為該供電電路261提供輸入電壓。 該背光驅動電路28為一發光二極體驅動電路，其將該 供電電路261提供之+5V工作電壓轉換為+10V工作電壓， 以啟動該顯示單元22之發光二極體。同時，該背光驅動電 •路28亦可依據該主控制晶片251發出之脈寬調制（Pulse Width Modulation，PWM)訊號，對其輸出工作電壓進行調 整，進而達到調節背光輝度之目的。 相較於先前技術，由於該數位相框20之主控制晶片 251處理功能增強，即可處理靜態圖片資料、動態影像資 料及音頻資料，並增設音頻編碼器256及時鐘發生器255 等電路結構，使該數位相框20具備靜態圖片顯示、動態影 像顯示、音頻播放及時鐘顯示之功能，達到真正意義之多 _功能化。並且，在實現前述功能之同時，所有電路均設置 於該驅動電路板23上，並藉由該驅動電路板23本身之電 路走線實現各電路結構間之電連接，從而避免使用複數驅 動電路板造成體積較厚，以及利用複數連接線或軟性電路 板進行電連接而導致電路複雜之問題，達到輕薄化及電路 結構間早化之目的。另’由於該背光驅動電路28與該主控 制晶片251設置於同一驅動電路板23上，故可方便利用該 主控制晶片251發出之脈寬調制訊號調整背光驅動電路28 12 1302092 之輸出，從而達到背光可調之功能。 綜上所述，本發明確已符合發明專利之要件，爰依法 提出專利申請。惟，以上所述者僅為本發明之較佳實施方 式，本發明之範圍並不以上述實施方式為限，舉凡熟習本 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係一種先前技術數位相框之立體結構示意圖。 春圖2係圖1所示數位相框之爆炸示意圖。 圖3係本發明數位相框一較佳實施方式之爆炸示意圖。 圖4係圖3所示數位相框之驅動電路板之電路框圖。 【主要元件符號說明】 數位相框 20 前框體 21 顯示單元 22 驅動電路板 23 放音單元 24 功能處理模塊 25 供電模塊 26 時序控制器 27 背光驅動電路 28 輸入/輸出介面 29 主控制晶片 251 第一快閃記憶體 252 第二快閃記憶體 253 第三快閃記憶體 254 時鐘發生器 255 音頻編碼器 256 遙控感應器 257 控件電路板 258 供電電路 261 内置電池電路 262 開關電路 263 后殼體 30 支撐架 31 鎖固結構 32 13Rate, DDR) random storage memory, which has the characteristics of fast data transmission rate. The third flash memory 254 stores peripheral devices, such as a personal computer, and various static picture data, motion picture data, and audio data input through the interface portion of the input/output interface 29. The main control chip 251 has a function of processing still pictures: body material, motion picture data and audio data, and the control signals sent from the remote control sensor 257 or the control circuit board 258 are respectively from the first flash memory. 252 and the third flash memory are placed in the slot of the card to call the corresponding action program and the static picture data, motion picture data or audio data, and the corresponding action program is written into the first A flash memory 253 is operated to transmit the graphic data signals of the static image data and the dynamic image data into red, green and blue colors to the timing controller 27, and the timing controller 27 makes the graphic The data signal is output to the display unit 22 in accordance with the timing control. At the same time, the master control chip 251 further converts the audio data into a digital signal and transmits the digital signal to the audio encoder 256. The audio encoder 256 converts the digital signal into an analog signal for the two playback units 24 to play. Thereby, the function of displaying and playing static picture data, dynamic image data and audio data is realized. While the foregoing data is being played, the main control chip 251 can also issue a trigger signal to turn on the clock generator 255 to cause the display unit 22 to display the current time. The power supply module 26 includes a power supply circuit 261, a built-in battery circuit 262, and a switch circuit 263. The power supply circuit 261 converts the input voltage into an operating voltage required by each circuit of the 11 1302092, such as the +3.3V and +1.8V operating voltages required by the main control circuit 251, and the +5V operating power required by the backlight driving circuit 28. ~ Pressure. The user can charge the internal battery circuit 262 by an external power supply, and the switch circuit 263 can select whether the external power supply or the built-in battery circuit 262 supplies the input voltage to the power supply circuit 261. The backlight driving circuit 28 is a light emitting diode driving circuit that converts the +5V operating voltage supplied from the power supply circuit 261 into a +10V operating voltage to activate the light emitting diode of the display unit 22. At the same time, the backlight driving circuit 28 can also adjust the output operating voltage according to the Pulse Width Modulation (PWM) signal sent by the main control chip 251, thereby achieving the purpose of adjusting the backlight luminance. Compared with the prior art, since the processing function of the main control chip 251 of the digital photo frame 20 is enhanced, the still picture data, the dynamic image data and the audio data can be processed, and the circuit structure such as the audio encoder 256 and the clock generator 255 is added. The digital photo frame 20 has the functions of static picture display, motion picture display, audio play and clock display, and achieves a real sense of _ functionalization. Moreover, while implementing the foregoing functions, all the circuits are disposed on the driving circuit board 23, and the electrical connection between the circuit structures is realized by the circuit routing of the driving circuit board 23 itself, thereby avoiding the use of the complex driving circuit board. The result is a thicker volume, and the use of a plurality of connecting wires or a flexible circuit board for electrical connection causes a complicated circuit, thereby achieving the purpose of thinning and premature circuit structure. In addition, since the backlight driving circuit 28 and the main control chip 251 are disposed on the same driving circuit board 23, the output of the backlight driving circuit 28 12 1302092 can be conveniently adjusted by using the pulse width modulation signal sent from the main control chip 251. Backlight adjustable function. In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or variations in accordance with the spirit of the present invention. It should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic perspective view of a prior art digital photo frame. Spring Figure 2 is a schematic diagram of the explosion of the digital photo frame shown in Figure 1. 3 is a schematic exploded view of a preferred embodiment of the digital photo frame of the present invention. 4 is a circuit block diagram of a driving circuit board of the digital photo frame shown in FIG. [Description of main component symbols] Digital photo frame 20 Front frame 21 Display unit 22 Drive circuit board 23 Sound reproduction unit 24 Function processing module 25 Power supply module 26 Timing controller 27 Backlight drive circuit 28 Input/output interface 29 Main control chip 251 First Flash memory 252 Second flash memory 253 Third flash memory 254 Clock generator 255 Audio encoder 256 Remote sensor 257 Control circuit board 258 Power supply circuit 261 Built-in battery circuit 262 Switch circuit 263 Rear case 30 Support Frame 31 locking structure 32 13