TWI443576B - Graphics display systems and methods - Google Patents

圖像顯示系統及方法Image display system and method

本發明主要關於圖像顯示及控制技術，特別係有關於一種可動態調整圖像顯示的運作模式的圖像顯示系統及方法，以達到節省系統資源及耗電量之目的。The invention relates to image display and control technology, in particular to an image display system and method capable of dynamically adjusting an operation mode of an image display, so as to save system resources and power consumption.

不論是個人桌上型電腦、筆記型電腦、或工作站伺服器等電子計算裝置，皆需外接或內建一顯示器以作為最基本的人機溝通介面，或用以提供多媒體相關之應用。一般而言，電子計算裝置係透過一顯示介面卡(Video card、Graphics card、Video adapter)處理圖像資料，並據以驅動顯示器以顯示畫面，完成人機溝通之目的。Whether it is an electronic computing device such as a personal desktop computer, a notebook computer, or a workstation server, an external or built-in display is required to serve as the most basic human-machine communication interface, or to provide multimedia-related applications. Generally, an electronic computing device processes image data through a display interface card (Video card, Graphics card, Video adapter), and drives the display to display a screen to complete the communication between human and computer.

第1圖為傳統電子計算裝置之顯示架構圖。電子計算裝置100包括中央控制單元110與顯示介面卡120，且顯示介面卡120係透過低電壓差動訊號架構(Low-Voltage Differential Signaling，LVDS)之介面連接至顯示器130，該低電壓差動訊號架構之介面包括了資料匯流排10與顯示資料通道(Display Data Channel，DDC)匯流排20，其中，資料匯流排10係用以傳送畫面資料(frame data)，顯示資料通道匯流排20則用以供顯示介面卡120取得顯示器130的規格與設定並進一步調整顯示器130的參數(如亮度和色彩平衡)或是初始去磁等操作，以輸出適當訊號發揮顯示器130之最佳顯示效能。顯示資料通道匯流排20又可再包括序列資料傳輸線(Serial DAta Line，SDA)21與序列時脈傳輸線(Serial CLock Line，SCL)22，序列資料傳輸線21係用以傳送顯示器130的內部資料，如廠牌機種名稱、序號、解析度等，而序列時脈傳輸線22則用以提供序列資料傳輸線於傳送資料時的同步時脈。Figure 1 is a diagram showing the display architecture of a conventional electronic computing device. The electronic computing device 100 includes a central control unit 110 and a display interface card 120, and the display interface card 120 is connected to the display 130 through a Low-Voltage Differential Signaling (LVDS) interface, the low voltage differential signal. The interface of the architecture includes a data bus 10 and a display data channel (DDC) bus 20, wherein the data bus 10 is used for transmitting frame data, and the data channel bus 20 is used for display. The display interface card 120 obtains the specifications and settings of the display 130 and further adjusts the parameters (such as brightness and color balance) of the display 130 or the initial demagnetization to output an appropriate signal to exert the optimal display performance of the display 130. The display data channel bus 20 can further include a Serial Data Line (SDA) 21 and a Serial CLock Line (SCL) 22, and the sequence data transmission line 21 is used to transmit the internal data of the display 130, such as The name, serial number, resolution, etc. of the brand model, and the serial clock transmission line 22 is used to provide a synchronization clock when the serial data transmission line transmits data.

然而，使用者在操作電子計算裝置時，其使用模式通常容易出現閒置(idle)的狀態，例如，當使用者將其注意力轉移至其它事務上、或使用者暫時離開座位等等，在此情況下，雖然所需顯示的畫面並未改變，但顯示介面卡120仍需將一模一樣的畫面資料持續輸出至顯示器130，因此，造成了電子計算裝置100持續佔用系統資源進行顯示介面卡120之運作、以及資料匯流排10與顯示資料通道匯流排20上的資料傳輸，而消耗了不必要的電力能源。However, when a user operates an electronic computing device, its usage mode is generally prone to an idle state, for example, when the user transfers his or her attention to other matters, or the user temporarily leaves the seat, etc., here. In this case, although the screen to be displayed is not changed, the display interface card 120 still needs to continuously output the same screen data to the display 130, thereby causing the electronic computing device 100 to continuously occupy system resources for the operation of the display interface card 120. And the data transfer on the data bus 10 and the display data channel bus 20 consumes unnecessary power energy.

本發明之一實施例提供了一種圖像顯示系統，包括一圖像處理模組、以及一顯示模組。上述圖像處理模組偵測接續於一第一畫面資料之一第二畫面資料是否與上述第一畫面資料相同，若上述第二畫面資料與上述第一畫面資料相同，則於輸出一模式轉換指令與上述第二畫面資料後停止輸出畫面資料。上述顯示模組根據上述第一畫面資料輸出顯示畫面，當接收到上述模式轉換指令時，儲存上述第二畫面資料以作為一暫存資料，並根據上述暫存資料持續輸出顯示畫面。An embodiment of the present invention provides an image display system including an image processing module and a display module. The image processing module detects whether the second picture data connected to one of the first picture data is the same as the first picture data, and if the second picture data is the same as the first picture data, outputting a mode conversion After the command and the second screen data described above, the output of the screen data is stopped. The display module outputs a display screen according to the first screen data. When receiving the mode switching instruction, the second screen data is stored as a temporary storage data, and the display screen is continuously output according to the temporary storage data.

本發明之另一實施例提供了一種圖像顯示系統，包括一圖像處理模組、以及一顯示模組。上述圖像處理模組在一時間區間內持續偵測接續於一第一畫面資料之複數第二畫面資料是否與上述第一畫面資料相同，若上述第二畫面資料與上述第一畫面資料皆相同，則圖像處理模組於輸出一模式轉換指令與上述第二畫面資料後停止輸出畫面資料；上述顯示模組根據上述第一畫面資料輸出顯示畫面，當接收到上述模式轉換指令時，上述顯示模組儲存上述第二畫面資料之一者以作為一暫存資料，並根據上述暫存資料持續輸出顯示畫面。Another embodiment of the present invention provides an image display system including an image processing module and a display module. The image processing module continuously detects whether the second image data connected to the first image data is the same as the first image data in a time interval, if the second image data is the same as the first image data. The image processing module stops outputting the screen data after outputting a mode conversion command and the second screen data; the display module outputs a display screen according to the first screen data, and when the mode conversion instruction is received, the display The module stores one of the second screen data as a temporary storage data, and continuously outputs a display screen according to the temporary storage data.

本發明之另一實施例提供了一種圖像顯示方法，包括以下流程步驟：由一顯示裝置根據一第一畫面資料輸出顯示畫面；偵測接續於上述第一畫面資料之一第二畫面資料是否與上述第一畫面資料相同；於上述第二畫面資料與上述第一畫面資料相同時，由上述顯示裝置儲存上述第二畫面資料以作為一暫存資料；停止輸出畫面資料至上述顯示裝置；以及由上述顯示裝置根據上述暫存資料持續輸出顯示畫面。Another embodiment of the present invention provides an image display method, including the following steps: outputting a display image according to a first screen data by a display device; and detecting whether the second image data connected to one of the first screen materials is When the second screen data is the same as the first screen data, the second screen data is stored by the display device as a temporary storage data; the output of the screen data is stopped to the display device; The display device continuously outputs the display screen based on the temporary storage data.

本發明之另一實施例提供了一種圖像顯示方法，適用於包括一顯示模組與一圖像處理模組之一圖像顯示系統。該圖像顯示方法包括以下流程步驟：由上述顯示模組根據接收自上述圖像處理模組之一第一畫面資料輸出顯示畫面；由上述圖像處理模組在一時間區間內持續偵測接續於上述第一畫面資料之複數第二畫面資料是否皆與上述第一畫面資料相同；於上述第二畫面資料皆與上述第一畫面資料相同時，使上述圖像處理模組停止輸出畫面資料；在接收到上述模式轉換指令時，由上述顯示模組儲存上述第二畫面資料之一者以作為一暫存資料；以及由上述顯示模組根據上述暫存資料持續輸出顯示畫面。Another embodiment of the present invention provides an image display method suitable for an image display system including a display module and an image processing module. The image display method includes the following steps: the display module outputs a display image according to the first image data received from the image processing module; and the image processing module continuously detects the connection in a time interval. Whether the second picture data of the first picture data is the same as the first picture data; when the second picture data is the same as the first picture data, the image processing module stops outputting the picture data; When receiving the mode conversion command, the display module stores one of the second screen data as a temporary storage data; and the display module continuously outputs the display screen according to the temporary storage data.

關於本發明其他附加的特徵與優點，此領域之熟習技術人士，在不脫離本發明之精神和範圍內，當可根據本案實施方法中所揭露之圖像顯示系統及方法，做些許的更動與潤飾而得到。With regard to other additional features and advantages of the present invention, those skilled in the art can make some modifications and changes to the image display system and method disclosed in the method of the present invention without departing from the spirit and scope of the present invention. Retouched and got.

本章節所敘述的是實施本發明之最佳方式，目的在於說明本發明之精神而非用以限定本發明之保護範圍，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。The present invention is described in the following paragraphs, and is intended to be illustrative of the present invention, and is intended to be illustrative of the scope of the invention, and the scope of the present invention is defined by the scope of the appended claims. .

第2圖係根據本發明一實施例所述之圖像顯示系統。如圖所示，其中以相同編號標示之元件代表該元件與第1圖中所對應的元件相同，此外，不同編號則用以標示不同之元件。圖像顯示系統200包括中央控制單元110與圖像處理模組220，且圖像處理模組220係透過低電壓差動訊號架構之介面連接至顯示模組230，顯示模組230包括了顯示面板模組231、時序控制(Timing Controller，TCON)模組232、以及儲存模組233。其中，由時序控制模組232同步處理顯示面板模組231所需之時序信號，並輸出控制信號以直接驅動顯示面板模組231。該低電壓差動訊號架構之介面包括了資料匯流排10與顯示資料通道匯流排20，其中，資料匯流排10係用以傳送畫面資料，顯示資料通道匯流排20則用以供圖像處理模組220取得顯示模組230的規格與設定並進一步調整顯示模組230的參數(如亮度和色彩平衡)或是初始去磁等操作，以輸出適當訊號發揮顯示模組230之最佳顯示效能。顯示資料通道匯流排20又可再包括序列資料傳輸線21與序列時脈傳輸線22，序列資料傳輸線21係用以傳送顯示模組230的內部資料，如廠牌機種名稱、序號、解析度等，而序列時脈傳輸線22則用以提供序列資料傳輸線於傳送資料時的同步時脈。2 is an image display system according to an embodiment of the present invention. In the figures, elements denoted by the same reference numerals indicate that the elements are the same as those in the first figure, and different numbers are used to designate different elements. The image display system 200 includes a central control unit 110 and an image processing module 220, and the image processing module 220 is connected to the display module 230 through a interface of a low voltage differential signal structure. The display module 230 includes a display panel. The module 231, the Timing Controller (TCON) module 232, and the storage module 233. The timing control module 232 synchronously processes the timing signals required by the display panel module 231, and outputs control signals to directly drive the display panel module 231. The interface of the low voltage differential signal structure includes a data bus 10 and a display data channel bus 20, wherein the data bus 10 is used for transmitting picture data, and the data channel bus 20 is used for image processing mode. The group 220 obtains the specifications and settings of the display module 230 and further adjusts the parameters (such as brightness and color balance) of the display module 230 or the initial demagnetization to output an appropriate signal to exert the optimal display performance of the display module 230. The display data channel bus 20 can further include a sequence data transmission line 21 and a sequence clock transmission line 22, and the sequence data transmission line 21 is used to transmit the internal data of the display module 230, such as the name, serial number, resolution, etc. of the brand model. The sequence clock transmission line 22 is used to provide a synchronization clock when the sequence data transmission line transmits data.

不同於傳統顯示架構，在本發明如第2圖所示之實施例中，圖像處理模組220在輸出第一畫面資料至顯示模組230後，會偵測下一個畫面資料是否需要更新，意即偵測接續於第一畫面資料之第二畫面資料是否與第一畫面資料相同，若相同，則代表使用者目前的使用模式在閒置的狀態，意即第一畫面資料之內容與第二畫面資料相同，因此，圖像處理模組220透過序列資料傳輸線21傳送一模式轉換指令至顯示模組230中的時序控制模組232，以通知顯示模組230進入省電模式。在另一實施例中，圖像處理模組220可在輸出第一畫面資料至顯示模組230後，在一預設之時間區間內持續偵測接續於第一畫面資料之複數個第二畫面資料是否皆與第一畫面資料相同，若複數個第二畫面資料皆與第一畫面資料相同，才透過序列資料傳輸線21傳送該模式轉換指令至顯示模組230中的時序控制模組232，以通知顯示模組230進入省電模式，如此一來，則可避免過於頻繁地切換省電模式。Different from the traditional display architecture, in the embodiment shown in FIG. 2, after the image processing module 220 outputs the first image data to the display module 230, it will detect whether the next image data needs to be updated. It means that the second picture data connected to the first picture data is the same as the first picture data. If they are the same, it means that the current usage mode of the user is in an idle state, that is, the content of the first picture data and the second content. The image processing module 220 transmits a mode switching command to the sequence control module 232 in the display module 230 through the sequence data transmission line 21 to notify the display module 230 to enter the power saving mode. In another embodiment, after outputting the first picture data to the display module 230, the image processing module 220 continuously detects a plurality of second pictures connected to the first picture data in a preset time interval. Whether the data is the same as the first picture data. If the plurality of second picture data are the same as the first picture data, the mode conversion command is transmitted to the sequence control module 232 in the display module 230 through the sequence data transmission line 21 to The notification display module 230 enters the power saving mode, so that the power saving mode can be avoided from being switched too frequently.

接著，圖像處理模組220再將第二畫面資料透過資料匯流排10傳送至顯示模組230，然後停止輸出畫面資料至顯示裝置230的程序。此時，在一實施例中，圖像顯示系統200可停止部分供電至圖像處理模組220，以使圖像處理模組220進入閒置或休眠狀態。上述模式轉換指令可為一預設之指令，例如指定一從屬位址(slave address)之讀取或寫入指令，或一新定義之特殊指令專用於上述模式轉換之用。Then, the image processing module 220 transmits the second screen data to the display module 230 through the data bus 10, and then stops the process of outputting the screen data to the display device 230. At this time, in an embodiment, the image display system 200 may stop partial power supply to the image processing module 220 to cause the image processing module 220 to enter an idle or sleep state. The mode conversion instruction may be a preset instruction, such as a read or write instruction specifying a slave address, or a newly defined special instruction dedicated to the above mode conversion.

顯示模組230中的時序控制模組232在接收到來自圖像處理模組220的模式轉換指令時，則進入省電模式，把從資料匯流排10接收到的第二畫面資料儲存於儲存模組233中以作為一暫存資料，並控制顯示面板模組231根據儲存模組233中的暫存資料持續輸出顯示畫面，而不需再從資料匯流排10接收及讀取畫面資料。由於上述儲存模組233僅需用以儲存一份畫面資料，因此，其儲存容量的大小則是視顯示面板模組231的解析度而定，且儲存模組233可為任何儲存媒介，例如：唯讀記憶體、快閃記憶體、以及硬碟等非揮發性記憶體(Non-Volatile Memory，NVM)、或隨機存取記憶體、快取記憶體等揮發性記憶體(Volatile Memory)。When receiving the mode switching instruction from the image processing module 220, the timing control module 232 in the display module 230 enters the power saving mode, and stores the second screen data received from the data bus 10 in the storage mode. The group 233 serves as a temporary storage data, and controls the display panel module 231 to continuously output the display screen according to the temporary storage data in the storage module 233, without receiving and reading the screen data from the data bus 10 . Since the storage module 233 only needs to store a piece of picture data, the storage capacity is determined by the resolution of the display panel module 231, and the storage module 233 can be any storage medium, for example: Non-volatile memory (Non-Volatile Memory, NVM) such as read-only memory, flash memory, and hard disk, or volatile memory (Volatile Memory) such as random access memory and cache memory.

此外，當顯示模組230進入省電模式後，時序控制模組232會持續將顯示面板模組231目前之垂直遮沒(Vertical Blank)資訊透過序列時脈傳輸線22傳送至圖像處理模組220。值得注意的是，處於閒置或休眠狀態的圖像處理模組220雖然停止輸出畫面資料，但仍會持續偵測後續發生的畫面資料，因此，當圖像處理模組220偵測到下一畫面資料需要更新時，意即偵測到第二畫面資料之後的一第三畫面資料與第二畫面資料不相同時，圖像處理模組220會離開閒置或休眠狀態，並根據所接收到的垂直遮沒資訊決定與顯示模組230之一同步時間，然後在該同步時間將第三畫面資料透過資料匯流排10傳送至顯示模組230。另一方面，在處於省電模式的顯示模組230中，時序控制模組232仍會持續監控是否有資料從資料匯流排10傳入，因此，當時序控制模組232偵測到透過資料匯流排10所接收到的第三畫面資料時，則顯示模組230離開省電模式，由時序控制模組232指示顯示面板模組231根據第三畫面資料輸出顯示畫面，而不使用儲存模組233中的暫存資料。換句話說，當顯示模組230離開省電模式時，則不使用儲存模組233中的暫存資料。In addition, after the display module 230 enters the power saving mode, the timing control module 232 continuously transmits the current vertical blank information of the display panel module 231 to the image processing module 220 through the sequence clock transmission line 22. . It should be noted that the image processing module 220 in the idle or dormant state continues to detect the subsequent image data, but the image processing module 220 detects the next image. When the data needs to be updated, that is, when the third screen data after the second screen data is detected is different from the second screen data, the image processing module 220 may leave the idle or sleep state, and according to the received vertical The masking information determines the synchronization time with one of the display modules 230, and then the third screen data is transmitted to the display module 230 through the data bus 10 at the synchronization time. On the other hand, in the display module 230 in the power saving mode, the timing control module 232 continuously monitors whether data is transmitted from the data bus 10, and therefore, when the timing control module 232 detects the data convergence. When the third screen data received by the row 10, the display module 230 leaves the power saving mode, and the timing control module 232 instructs the display panel module 231 to output the display screen according to the third screen data without using the storage module 233. Temporary information in the middle. In other words, when the display module 230 leaves the power saving mode, the temporary storage data in the storage module 233 is not used.

在另一實施例中，當圖像處理模組220偵測到第二畫面資料之後的一第三畫面資料與第二畫面資料不相同時，圖像處理模組220會離開閒置或休眠狀態，根據所接收到的垂直遮沒資訊決定與顯示模組230之一同步時間，然後在該同步時間先改變序列資料傳輸線21之電位，以通知顯示模組230離開省電模式，接著圖像處理模組220再透過資料匯流排10傳送第三畫面資料至顯示模組230。顯示模組230在偵測到序列資料傳輸線21上之電位改變時，則離開省電模式並改由根據第三畫面資料輸出顯示畫面，而不使用儲存模組233中的暫存資料。In another embodiment, when the image processing module 220 detects that the third image data and the second image data after the second image data are different, the image processing module 220 may leave the idle or sleep state. Determining a synchronization time with one of the display modules 230 according to the received vertical blanking information, and then changing the potential of the serial data transmission line 21 at the synchronization time to notify the display module 230 to leave the power saving mode, and then the image processing mode The group 220 then transmits the third picture data to the display module 230 through the data bus 10 . When detecting the potential change on the serial data transmission line 21, the display module 230 leaves the power saving mode and outputs the display screen according to the third screen data without using the temporary storage data in the storage module 233.

第3圖係根據本發明另一實施例所述之圖像顯示系統。如圖所示，其中以相同編號標示之元件代表該元件與第1圖中所對應的元件相同，此外，不同編號則用以標示不同之元件。圖像顯示系統300包括中央控制單元110與圖像處理模組320，且圖像處理模組320係透過嵌入式顯示埠架構(embedded DispalyPort，eDP)之介面連接至顯示模組330，顯示模組330包括了顯示面板模組331、時序控制模組332、儲存模組333、以及背光模組334。其中，由時序控制模組332同步處理顯示面板模組331所需之時序信號，並輸出控制信號以直接驅動顯示面板模組331與背光模組334。該嵌入式顯示埠架構之介面包括了主連線31、輔助通道(auxiliary channel)線32、以及熱插拔偵測(Hot Plug Detect，HPD)線33，其中，主連線31係用以傳送畫面資料，輔助通道線32用以管理與控制顯示模組230的規格與設定，熱插拔偵測線33則用以偵測來源設備與接收設備在處於通電狀態下的連接事件以及傳送垂直遮沒資訊。Figure 3 is an image display system according to another embodiment of the present invention. In the figures, elements denoted by the same reference numerals indicate that the elements are the same as those in the first figure, and different numbers are used to designate different elements. The image display system 300 includes a central control unit 110 and an image processing module 320, and the image processing module 320 is connected to the display module 330 through an interface of an embedded display interface (eDP). The 330 includes a display panel module 331, a timing control module 332, a storage module 333, and a backlight module 334. The timing control module 332 synchronously processes the timing signals required by the display panel module 331 and outputs control signals to directly drive the display panel module 331 and the backlight module 334. The interface of the embedded display architecture includes a main connection 31, an auxiliary channel line 32, and a Hot Plug Detect (HPD) line 33, wherein the main connection 31 is used for transmission. The screen data, the auxiliary channel line 32 is used to manage and control the specification and setting of the display module 230, and the hot plug detection line 33 is used to detect the connection event between the source device and the receiving device in the power-on state and to transmit the vertical cover. No information.

在此實施例中，圖像處理模組320係透過輔助通道線32通知顯示模組330進入省電模式。進一步說明，圖像處理模組320在輸出第一畫面資料至顯示模組330後，會偵測下一個畫面資料是否需要更新，意即偵測接續於第一畫面資料之第二畫面資料是否與第一畫面資料相同，若相同，則代表使用者目前的使用模式在閒置的狀態，因此，圖像處理模組320透過輔助通道線32傳送一模式轉換指令至顯示模組330中的時序控制模組332，以通知顯示模組330進入省電模式。在另一實施例中，圖像處理模組320可在輸出第一畫面資料至顯示模組330後，在一預設之時間區間內持續偵測接續於第一畫面資料之複數個第二畫面資料是否皆與第一畫面資料相同，若複數個第二畫面資料皆與第一畫面資料相同，才透過輔助通道線32傳送該模式轉換指令至顯示模組330中的時序控制模組332，以通知顯示模組330進入省電模式，如此一來，則可避免過於頻繁地切換省電模式。In this embodiment, the image processing module 320 notifies the display module 330 to enter the power saving mode through the auxiliary channel line 32. Further, after the first image data is output to the display module 330, the image processing module 320 detects whether the next image data needs to be updated, that is, whether the second image data connected to the first image data is detected. The first picture data is the same. If the same, it indicates that the user's current usage mode is idle. Therefore, the image processing module 320 transmits a mode switching command to the timing control mode in the display module 330 through the auxiliary channel line 32. Group 332, to notify display module 330 to enter a power saving mode. In another embodiment, after the first image data is output to the display module 330, the image processing module 320 can continuously detect a plurality of second images connected to the first image data in a predetermined time interval. Whether the data is the same as the first picture data. If the plurality of second picture data are the same as the first picture data, the mode conversion command is transmitted to the timing control module 332 in the display module 330 through the auxiliary channel line 32 to The notification display module 330 enters the power saving mode, so that the power saving mode can be avoided from being switched too frequently.

接著，圖像處理模組320再將第二畫面資料透過主連線31傳送至顯示模組330，然後停止輸出畫面資料至顯示裝置330的程序。此時，在一實施例中，圖像顯示系統300可停止部分供電至圖像處理模組320，以使圖像處理模組320進入閒置或休眠狀態。上述模式轉換指令可為一預設之指令，例如指定一從屬位址之讀取或寫入指令，或一新定義之特殊指令專用於上述模式轉換之用。Then, the image processing module 320 transmits the second screen data to the display module 330 through the main connection 31, and then stops the process of outputting the screen data to the display device 330. At this time, in an embodiment, the image display system 300 may stop partial power supply to the image processing module 320 to cause the image processing module 320 to enter an idle or sleep state. The mode conversion instruction may be a preset instruction, such as a read or write instruction specifying a slave address, or a newly defined special instruction dedicated to the above mode conversion.

顯示模組330中的時序控制模組332在接收到來自圖像處理模組320的模式轉換指令時，則進入省電模式，把從主連線31接收到的第二畫面資料儲存於儲存模組333中以作為一暫存資料，並控制顯示面板模組331根據儲存模組333中的暫存資料持續輸出顯示畫面，而不需再從主連線31接收及讀取畫面資料。由於上述儲存模組333僅需用以儲存一份畫面資料，因此，其儲存容量的大小則是視顯示面板模組331的解析度而定，且儲存模組333可為任何儲存媒介，例如：唯讀記憶體、快閃記憶體、以及硬碟等非揮發性記憶體、或隨機存取記憶體、快取記憶體等揮發性記憶體。When receiving the mode switching instruction from the image processing module 320, the timing control module 332 in the display module 330 enters the power saving mode, and stores the second screen data received from the main connection 31 in the storage mode. The group 333 serves as a temporary storage data, and controls the display panel module 331 to continuously output the display screen according to the temporary storage data in the storage module 333, without receiving and reading the screen data from the main connection 31. Since the storage module 333 only needs to store a piece of picture data, the storage capacity is determined by the resolution of the display panel module 331, and the storage module 333 can be any storage medium, for example: Read-only memory, flash memory, and non-volatile memory such as hard disk, or volatile memory such as random access memory and cache memory.

此外，當顯示模組330進入省電模式後，時序控制模組332會持續將顯示面板模組231目前之垂直遮沒資訊透過熱插拔偵測線33傳送至圖像處理模組320。值得注意的是，處於閒置或休眠狀態的圖像處理模組320雖然停止輸出畫面資料，但仍會持續偵測後續發生的畫面資料，因此，當圖像處理模組320偵測到下一畫面資料需要更新時，意即偵測到第二畫面資料之後的一第三畫面資料與第二畫面資料不相同時，圖像處理模組320會離開閒置或休眠狀態，並根據所接收到的垂直遮沒資訊決定與顯示模組330之一同步時間，然後在該同步時間將第三畫面資料透過主連線31傳送至顯示模組330。另一方面，在處於省電模式的顯示模組330中，時序控制模組332仍會持續監控是否有資料從主連線31傳入，因此，當時序控制模組332偵測到透過主連線31所接收到的第三畫面資料時，則顯示模組330離開省電模式，由時序控制模組332指示顯示面板模組331根據第三畫面資料輸出顯示畫面，而不使用儲存模組333中的暫存資料。In addition, after the display module 330 enters the power saving mode, the timing control module 332 continuously transmits the current vertical obscuration information of the display panel module 231 to the image processing module 320 through the hot plug detection line 33. It should be noted that the image processing module 320 in the idle or dormant state continues to detect the subsequent image data, but the image processing module 320 detects the next image. When the data needs to be updated, that is, when the third screen data after the second screen data is detected is different from the second screen data, the image processing module 320 may leave the idle or sleep state, and according to the received vertical The masking information determines the synchronization time with one of the display modules 330, and then the third screen data is transmitted to the display module 330 through the main connection 31 at the synchronization time. On the other hand, in the display module 330 in the power saving mode, the timing control module 332 continuously monitors whether data is transmitted from the main connection 31. Therefore, when the timing control module 332 detects the transmission through the main connection When the third screen data is received by the line 31, the display module 330 leaves the power saving mode, and the timing control module 332 instructs the display panel module 331 to output the display screen according to the third screen data without using the storage module 333. Temporary information in the middle.

第4圖係根據本發明一實施例所述之圖像顯示方法之流程圖。在此實施例中，本發明之圖像顯示方法係用以有效控制輸出畫面資料至一顯示裝置，以節省系統資源，並控制該顯示裝置在省電模式下根據暫存資料輸出顯示畫面。首先，由顯示裝置根據一第一畫面資料輸出顯示畫面(步驟S410)，該顯示裝置可為第2圖中的顯示模組230或第3圖中的顯示模組330，而輸出畫面資料者可為第2圖中的圖像處理模組220或第3圖中的圖像處理模組320。輸出第一畫面資料後，則偵測接續於第一畫面資料之一第二畫面資料是否與第一畫面資料相同(步驟S420)，若相同，代表使用者目前的使用模式在閒置的狀態，因而導致畫面資料未更新的狀況。所以在第二畫面資料與第一畫面資料相同時，由該顯示裝置儲存第二畫面資料以作為一暫存資料，並由一圖像處理模組停止輸出畫面資料至顯示裝置(步驟S430)，最後，指示顯示裝置根據暫存資料持續輸出顯示畫面(步驟S440)，意即顯示裝置以及包括該顯示裝置之圖像顯示系統已進入了省電模式。4 is a flow chart of an image display method according to an embodiment of the invention. In this embodiment, the image display method of the present invention is for effectively controlling output image data to a display device to save system resources, and controlling the display device to output a display screen according to the temporary storage data in the power saving mode. First, the display device outputs a display screen according to a first screen data (step S410). The display device may be the display module 230 in FIG. 2 or the display module 330 in FIG. 3, and the output screen information may be It is the image processing module 220 in Fig. 2 or the image processing module 320 in Fig. 3. After outputting the first picture data, detecting whether the second picture material connected to one of the first picture data is the same as the first picture data (step S420), if the same, indicating that the current usage mode of the user is idle, thus A condition that causes the screen material to be unupdated. Therefore, when the second picture data is the same as the first picture data, the display device stores the second picture data as a temporary storage data, and the image processing module stops outputting the picture data to the display device (step S430). Finally, the instruction display device continuously outputs the display screen based on the temporary storage data (step S440), that is, the display device and the image display system including the display device have entered the power saving mode.

第5圖係根據本發明另一實施例所述之圖像顯示方法之流程圖。在此實施例中，本發明之圖像顯示方法係適用於包括一顯示模組與一圖像處理模組之圖像顯示系統，例如第2圖中的圖像顯示系統200或第3圖中的圖像顯示系統300。該圖像顯示方法的執行步驟如下：首先，由顯示模組根據接收自圖像處理模組之一第一畫面資料輸出顯示畫面(步驟S510)，該顯示模組可為第2圖中的顯示模組230或第3圖中的顯示模組330，而圖像處理模組可為第2圖中的圖像處理模組220或第3圖中的圖像處理模組320。輸出第一畫面資料後，由圖像處理模組在一時間區間內持續偵測接續於第一畫面資料之複數個第二畫面資料是否皆與第一畫面資料相同(步驟S520)，若皆相同，代表使用者目前的使用模式在閒置的狀態，因而導致畫面資料持續保持相同。所以在第二畫面資料皆與第一畫面資料相同時，由圖像處理模組傳送一模式轉換指令與第二畫面資料至顯示模組，並使圖像處理模組停止輸出畫面資料(步驟S530)。其中，若圖像處理模組與顯示模組之間的溝通是透過如第2圖所示的低電壓差動訊號架構所規範之資料傳輸線路，則上述模式轉換指令可載送於序列資料傳輸線，而上述垂直遮沒資訊可載送於序列時脈傳輸線；若圖像處理模組與顯示模組之間的溝通是透過如第3圖所示的嵌入式顯示埠架構所規範之資料傳輸線路，則上述模式轉換指令可載送於輔助通道線，而上述垂直遮沒資訊可載送於熱插拔偵測線。Figure 5 is a flow chart of an image display method according to another embodiment of the present invention. In this embodiment, the image display method of the present invention is applicable to an image display system including a display module and an image processing module, such as the image display system 200 in FIG. 2 or the third image. The image display system 300. The image display method is performed as follows: First, the display module outputs a display screen according to the first screen data received from the image processing module (step S510), and the display module can be the display in FIG. The module 230 or the display module 330 in FIG. 3, and the image processing module may be the image processing module 220 in FIG. 2 or the image processing module 320 in FIG. After outputting the first picture data, the image processing module continuously detects whether the plurality of second picture data connected to the first picture data are the same as the first picture data in a time interval (step S520), if all are the same , on behalf of the user's current usage mode is idle, thus causing the picture data to remain the same. Therefore, when the second picture data is the same as the first picture data, the image processing module transmits a mode conversion instruction and the second picture data to the display module, and causes the image processing module to stop outputting the picture data (step S530). ). Wherein, if the communication between the image processing module and the display module is through a data transmission line as specified by the low voltage differential signal architecture as shown in FIG. 2, the mode switching instruction may be carried on the serial data transmission line. The vertical obscuration information may be carried on the sequence clock transmission line; if the communication between the image processing module and the display module is through the data transmission line specified by the embedded display architecture as shown in FIG. The mode switching command may be carried on the auxiliary channel line, and the vertical masking information may be carried on the hot plug detecting line.

最後，在顯示模組接收到模式轉換指令時，由顯示模組儲存第二畫面資料之一者以作為一暫存資料(步驟S540)，並且由顯示模組根據暫存資料持續輸出顯示畫面(步驟S550)，此時，整個圖像顯示系統皆已完成進入省電模式之程序。由於在省電模式下，圖像處理模組進入了閒置狀態而不再輸出畫面資料，因此可有效節省系統資源，同時，顯示模組亦將畫面資料的取用來源切換至妥善儲存的暫存資料，所以也不會造成無畫面資料可輸出之問題。Finally, when the display module receives the mode conversion command, the display module stores one of the second screen data as a temporary storage data (step S540), and the display module continuously outputs the display image according to the temporary storage data ( Step S550), at this time, the entire image display system has completed the process of entering the power saving mode. In the power saving mode, the image processing module enters the idle state and no longer outputs the image data, thereby effectively saving system resources. At the same time, the display module also switches the source of the image data to a properly stored temporary storage. The data, so it will not cause the problem of no picture data to be output.

在圖像顯示系統進入省電模式後，本發明之圖像顯示方法可進一步處理如何離開省電模式之程序，程序步驟如下：首先，由顯示模組持續將目前之一垂直遮沒資訊傳送至圖像處理模組，並持續偵測第二畫面資料之後的畫面資料是否需要更新。也就是說，由上述圖像處理模組偵測到第二畫面資料之後之一第三畫面資料與第二畫面資料不相同時，表示畫面需要更新，所以由上述圖像處理模組根據垂直遮沒資訊決定與顯示模組之一同步時間，並且由上述圖像處理模組在此同步時間傳送第三畫面資料至顯示模組，以通知顯示模組離開省電模式，使顯示模組改由根據第三畫面資料輸出顯示畫面。或者，若圖像處理模組與顯示模組之間的溝通是透過如第2圖所示的低電壓差動訊號架構所規範之資料傳輸線路，則本發明之圖像顯示方法可在上述同步時間先改變低電壓差動訊號架構之一序列資料傳輸線之一電位，以通知顯示模組離開省電模式，然後再傳送第三畫面資料至顯示模組，使顯示模組在偵測到序列資料傳輸線之電位改變時改由根據第三畫面資料顯示畫面。After the image display system enters the power saving mode, the image display method of the present invention can further process the program of how to leave the power saving mode. The program steps are as follows: First, the display module continuously transmits one of the current vertical blanking information to The image processing module continuously detects whether the screen material after the second screen material needs to be updated. In other words, when the third image data and the second image data are different after the second image data is detected by the image processing module, the image needs to be updated, so the image processing module is vertically covered by the image processing module. No information is determined to synchronize with one of the display modules, and the image processing module transmits the third image data to the display module at the synchronization time to notify the display module to leave the power saving mode, so that the display module is changed. The display screen is output according to the third screen data. Alternatively, if the communication between the image processing module and the display module is through a data transmission line as specified by the low voltage differential signal architecture shown in FIG. 2, the image display method of the present invention can be synchronized. First, the potential of one of the sequence data transmission lines of the low voltage differential signal structure is changed to notify the display module to leave the power saving mode, and then the third picture data is transmitted to the display module, so that the display module detects the sequence data. When the potential of the transmission line is changed, the screen is displayed according to the third screen data.

上述之圖像顯示方法可透過使用軟體、韌體、以及硬體的任意組合得以實現，硬體可為任何具有圖像顯示功能之裝置，例如：個人電腦、伺服器、筆記型電腦、個人數位助理(Personal Digital Assistant，PDA)、或手機等等。軟體則可儲存於系統記憶體中，或儲存於其他可移除/不可移除/揮發性/非揮發性之電腦儲存媒介，可包括於上述硬體中或可由上述硬體所存取，例如：磁體媒介、光學媒介、快閃記憶卡、數位磁帶、固態(solid state)隨機存取記憶體、固態唯讀記憶體等等。The above image display method can be realized by using any combination of software, firmware, and hardware, and the hardware can be any device having an image display function, such as a personal computer, a server, a notebook computer, and a personal digital device. Assistant (Personal Digital Assistant, PDA), or mobile phone, etc. The software may be stored in system memory or stored in other removable/non-removable/volatile/non-volatile computer storage media, may be included in or accessible by the hardware described above, for example : Magnet media, optical media, flash memory cards, digital tapes, solid state random access memory, solid state read only memory, and more.

本發明雖以各種實施例揭露如上，然而其僅為範例參考而非用以限定本發明的範圍，任何熟習此項技藝者，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。例如：中央控制單元110可與圖像處理模組220或顯示模組230整合為一圖像顯示子系統；顯示模組230可與圖像處理模組220整合於單一裝置內或各為獨立之電子裝置，同樣地，顯示模組330可圖像處理模組320整合於單一裝置內或各為獨立之電子裝置。因此上述實施例並非用以限定本發明之範圍，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。The present invention has been described above with reference to various embodiments, which are intended to be illustrative only and not to limit the scope of the invention, and those skilled in the art can make a few changes without departing from the spirit and scope of the invention. With retouching. For example, the central control unit 110 can be integrated with the image processing module 220 or the display module 230 as an image display subsystem; the display module 230 can be integrated with the image processing module 220 in a single device or each can be independent. The electronic device, similarly, the display module 330 can be integrated into a single device or each of the independent electronic devices. The above-described embodiments are not intended to limit the scope of the invention, and the scope of the invention is defined by the scope of the appended claims.

10．．．資料匯流排10. . . Data bus

20．．．顯示資料通道匯流排20. . . Display data channel bus

21．．．序列資料傳輸線twenty one. . . Sequence data transmission line

22．．．序列時脈傳輸線twenty two. . . Sequence clock transmission line

31．．．主連線31. . . Main connection

32．．．輔助通道線32. . . Auxiliary channel line

33．．．熱插拔偵測線33. . . Hot plug detection line

100、200、300．．．圖像顯示系統100, 200, 300. . . Image display system

110．．．中央處理單元110. . . Central processing unit

120．．．顯示介面卡120. . . Display interface card

130．．．顯示器130. . . monitor

220、320．．．圖像處理模組220, 320. . . Image processing module

230、330．．．顯示模組230, 330. . . Display module

231、331．．．顯示面板模組231, 331. . . Display panel module

232、332．．．時序控制模組232, 332. . . Timing control module

233、333．．．儲存模組233, 333. . . Storage module

334．．．背光模組334. . . Backlight module

第1圖係顯示傳統圖像顯示系統之架構圖。Figure 1 is a block diagram showing a conventional image display system.

第2圖係根據本發明一實施例所述之圖像顯示系統。2 is an image display system according to an embodiment of the present invention.

第3圖係根據本發明另一實施例所述之圖像顯示系統。Figure 3 is an image display system according to another embodiment of the present invention.

第4圖係根據本發明一實施例所述之圖像顯示方法之流程圖。4 is a flow chart of an image display method according to an embodiment of the invention.

第5圖係根據本發明另一實施例所述之圖像顯示方法之流程圖。Figure 5 is a flow chart of an image display method according to another embodiment of the present invention.

10．．．資料匯流排10. . . Data bus

20．．．顯示資料通道匯流排20. . . Display data channel bus

21．．．序列資料傳輸線twenty one. . . Sequence data transmission line

22．．．序列時脈傳輸線twenty two. . . Sequence clock transmission line

200．．．圖像顯示系統200. . . Image display system

110．．．中央處理單元110. . . Central processing unit

220．．．圖像處理模組220. . . Image processing module

230．．．顯示模組230. . . Display module

231．．．顯示面板模組231. . . Display panel module

232．．．時序控制模組232. . . Timing control module

233．．．儲存模組233. . . Storage module