1253036 玖、發明說明： (一） 發明所屬之技術區域 本發明係關於一種可將複數圖像形成裝置所輸出之圖像 資料顯示在一個畫面上之圖像顯示裝置及圖像顯示系統。 (二） 先前技術 近年，已見諸有一種圖像顯示裝置，可將具有複數之輸 入頻道、不同圖像形成裝置中所形成之圖像資料，形成在 一個畫面者。此種具有多監視器（multi-monitor)機能之圖像 顯示裝置，例如，具有用以輸入來自各圖像形成裝置之圖 像資料的輸入端子，將所輸入之圖像資料彙整於一個畫面 上作顯示’因而可將複數之圖像資料顯示在同一個畫面上。 又，亦見諸有另一種圖像顯示裝置，係可對複數圖像形 成裝置所輸入之圖像資料作放大、縮小等之圖像處理。此 種圖像顯示裝置內部係設有圖像處理裝置，而圖像形成裝 置輸出之圖像資料中，則含有識別資訊 '用以顯示資料係 哪一個圖像形成裝置所形成，及必要作圖像處理之資訊。 具有該種構成之設備中，圖像顯示裝置係基於識別資訊， 而判別資料係自哪一個圖像形成裝置所輸出，對於同一個 圖像形成裝置所輸出之圖像資料，一律實行放大、縮小之 圖像處理（例如，專利文獻1參照）。 專利文獻1 :特開2 0 0 2 - 1 4 6 6 4號公報 發明內容 發明擬解決之問題 但是，習用具有多顯示機能之圖像顯示裝置，卻具有對 -5- 1253036 圖像形成裝置之機能及圖像形成裝置所生成之圖像資料無 法作有效活用之問題，以下’即就該問題點逐一作說明。 爲了簡單，圖像形成裝置可假設爲PC。使用習用具有習 知多顯示機能、其係使用該種圖像形成裝置之圖像顯示裝 置時’圖像形成裝置係分別對應圖像顯示裝置之全畫面而 輸出圖像資料。具體言之，例如，圖像顯示裝置之顯示畫 素數爲XGA(1024x768)時，圖像顯示裝置與所連接之複數 個圖像形成裝置，係生成所分別對應之X G A之圖像資料， 而對圖像顯示裝置作輸出。 另一方面’爲了使複數圖像形成裝置所輸出之圖像資料 得以在同一個畫面上作顯不，則在圖像顯示裝置側，必須 實行圖像大小之壓縮。例如，如爲4個圖像形成裝置時， 則須把分別輸出之圖像資料予以壓縮成全畫面畫數之1/4 ，亦即須壓縮至1 2x3 84之大小。爲此，對於圖像形成裝置 內所生成之圖像資料，乃須於圖像顯示裝置內再作處理。 因之，習用具有多顯示機能之圖像顯示裝置，儘管圖像 形成裝置具有圖像形成機能，惟乃須實行別種大小變更之 處理。如此，習用技術乃須同時具備重複機能之圖像形成 裝置與圖像顯示裝置兩者，如擬對圖像形成裝置內之機能 作有效之活用，將甚困難。 又，具有習知多顯示機能之圖像顯示裝置，其所顯示資 訊量之圖像資料，亦必無法等同於圖像形成裝置側生成之 圖像資料的資訊量，此亦爲一種問題。以下，就具有可顯 示XGA大小之圖像顯示裝置，與具有XGA大小之像素資 -6- 1253036 料生成機能，在同一畫面上可同時顯示圖像資料、可輸出 相關之5 1 2 X 3 8 4圖像資料的圖像形成裝置之圖像顯示系統 爲例作說明。 在該種圖像顯示系統中，假設可將來自使用者之圖像形 成裝置所輸出之圖像資料作全畫面之取得，亦即，可作；[〇 2 4 X768之解像度顯示。此種狀況，具有習用多顯示機能之圖 像顯不裝置，係把具有圖像形成裝置所輸出之5丨2 x 3 8 4解 像度的圖像資料，單純作2倍之放大顯示。 亦即’構成圖像顯示系統之圖像形成裝置，儘管是可直 接輸出XGA大小之圖像資料，但圖像形成裝置亦輸出512 x3 8 4解像度之資訊量較少的圖像資料，在圖像顯示裝置側 ’仍對圖像大小作2倍放大。因之，上述之圖像顯示系統 ’在圖像形成裝置側，其顯示資訊量之圖像即比本來實現 之資訊量還低。 本發明即鑑於前述諸種問題，而提供一種圖像顯示裝置 及Η像顯不系統’其目的係可將圖像形成裝置之機能作最 大限度之活用，並可作大資訊量之影像顯示者。 爲了解決上述問題而達成所預期之目的，如申請專利範 圍第1項之圖像顯示裝置，係一種可將複數個圖像形成裝 置所輸出之圖像資料顯示在一個畫面上之圖像顯示裝置， 具有：顯示資訊通知裝置，係對複數之該等圖像形成裝置 的各個圖像形成裝置，通知個別之顯示資訊；圖像輸入裝 置’係隨著該顯示資訊，把該圖像形成裝置輸出之圖像資 Ϊ253036 料作輸入；及顯示裝置，係基於該圖像輸入裝置所輸入之 圖像資料而顯示所生成之圖面資料，等構成爲特徵者。 如依申請專利範圍第1項之本發明，因係對於所連接之 各個圖像形成裝置通知個別之顯示資訊，故可對各個圖像 形成裝置’基於個別之顯示資訊生成圖像，因而可有效活 用圖像形成裝置之機能’並可減輕圖像顯示裝置側之處理 負擔。 又’如申請專利範圍第2項之圖像顯示裝置，係在上述 發明中’該顯示資訊係至少含有相關解像度之資訊爲特徵 者。 又’如申請專利範圍第3項之圖像顯示裝置，係在上述 發明中’尙具有變更輸入裝置，係用以輸入該顯示裝置中 、畫面資料之顯示態樣的變更資訊；及顯示資訊生成裝置 ’係用以生成對應於各該圖像形成裝置之顯示資訊，爲特 徵者。 又’如申era專利範圍弟4項之圖像顯不裝置，係在上述 發明中，尙具有要求輸入裝置，係用以輸入來自複數個該 等圖像形成裝置之各個輸出的圖像處理要求；及圖像處理 裝置，係基於輸入於該要求輸入裝置之圖像處理要求，對 該圖像資料’實行對應於各個該圖像形成裝置的圖像處理 ，等構成爲特徵者。 又，如申請專利範圍第5項之圖像顯示裝置，係在上述 發明中，該圖像處理係色補正處理爲特徵者。 -8- 1253036 又’如申請專利範圍第6項之圖像顯示裝置，係〜種具 有複數個圖像形成裝置；及可將該複數個圖像形成裝置所 輸出之圖像資料顯示在一個畫面上之圖像顯示裝置，等之 圖像顯示系統，該圖像顯示裝置則具有顯示資訊通知裝置 ’係對複數個之各個圖像形成裝置，通知個別之顯示資巧 ’圖像輸入裝置’係隨者該顯不資訊，輸入來自該圖像开^ 成裝置輸出之圖像資料；及顯示裝置，係用以顯示基於該 圖像輸入裝置所輸入之圖像資料所生成之畫面資料；至於 該複數之圖像形成裝置，則具有圖像資料生成裝置；及圖 像生成控制裝置，係用以指示對該圖像資料生成裝置、隨 著所通知之該顯示資訊、顯示態樣之圖像資料生成，爲特 徵者。 又，如申請專利範圍第7項之圖像顯示系統，在該發明 中，該圖像控制裝置之機能爲，裝設在該圖像形成裝置內 之軟體’係可實現實行對該圖像形成裝置作所定之計算爲 特徵者。 發明之效果 依本發明之圖像顯示裝置及圖像顯示系統，因其構成係 對所連接之各個圖像形成裝置通知個別之顯示資訊，故對 各個圖像形成裝置，可基於個別之顯示資訊而生成圖像資 料’因而可有效活用圖像形成裝置之機能，並可減輕圖像 顯不裝置側之處理負擔。 以下’即依所附圖面說明該種圖像顯示系統之最佳實施 形態（下稱實施例）。又，圖面爲一種模式，實務上或有些 -9- 1253036 許之差異。又，圖面中之元件符號，其爲同一構成者，例 如”圖像形成裝置2a”、，，圖像形成裝置2b ”等，依須要，可 能統稱爲”圖像形成裝置2 ”。 (四）實施方式 依本發明實施例之圖像顯示系統，係一種可將來自複數 圖像形成裝置之圖像資料予以顯示在一個畫面上者，其具 有複數之圖像形成裝置；及圖像顯示裝置，其係自複數圖 像形成裝置輸出、在圖像資料之顯示區域中加在一起，而 輸出個別之顯示資訊，於圖像形成裝置中，將依顯示資訊 所形成之圖像資料顯示在畫面上，等之構成。第1圖爲本 實施例中，圖像顯示系統之全體構成方塊圖。如第1圖所 示’依本實施例圖像顯示系統係具有圖像顯示裝置；連接 於圖像顯示裝置1之複數圖像形成裝置2a〜2d，等構成。 又，圖像形成裝置2之數量不限制僅爲4個，任意數量均 可 〇 圖像顯示裝置1具有：輸入部3，用以指定來自使用者 複數圖像形成裝置2之輸出之圖像資料的顯示區纟或等；顯 示控制部4，係基於輸入部3所輸入之資訊、把對圖像形 成裝置2通知之顯不資訊生成在圖像形成裝置上·，及介面 部5 ’係用以把顯示控制部4所形成之顯示資訊通知圖像 开^成裝置2，等之構成。圖中，介面部5爲與圖像顯示裝 置1所連接之圖像形成裝置2兩者之數量相同。本實施例 中’係以連接4個圖像形成裝置2 a〜2 d爲例作說明，介 面部5a〜5d則係對應該圖像形成裝置2a〜2cl配置。 1253036 又’本實施例之圖像顯示裝置，在介面部5 a〜5 d 記憶部（frame mem〇ry)6之間，配置有選擇器（selec 用以選擇來自介面部5 a〜5 d輸入之圖像資料中、對 憶部6作寫入、讀出之資料；及〇 μ a讀出部8，係 制選擇器7之讀出動作。又，在介面部5 a〜5 d內， 述之圖框寫入部2 0，用以作選擇器7之寫入動作的 又圖像顯示裝置1則具有比例變換部9，係對來自 憶部6所讀出之圖像資料，依需要，執行對各圖像 置2 a〜2 d所輸出之圖像資料作比例變換；色補正窗 1 〇 d ’係實行對各圖像形成裝置2 a〜2 d所輸出之圖 補正；顯示部1 1，係把色補正部a〜丨〇 d作色補 圖像資料顯示在畫面上；及選擇器1 2，係設在色補五 〜1 〇 d與顯示部1 1之間，用以選擇色補正部1 〇 a〜 處理後之圖像資料中，輸入於顯示部n之圖像資料 ’圖像顯示裝置1，具有D Μ A讀出部8、比例變換 顯不部11、用以規定選擇器12動作時序之CRTC: 及顯示資訊記憶部1 4，係用以記憶顯示控制部4所 顯不資訊。 輸入邰3 ’係就來自各圖像形成裝置2而顯示於 1 1畫面上之圖像資料，實行圖像資料在圖像顯示裝 用者優先顯示順序之選擇，並可實行圖像資料之顯 的放大、縮小等的指示。具體言之，輸入部3，係 個開關形成，用以對顯示控制部4輸出圖像資料之 的資訊。 與圖框 t 〇 r ) 7， 圖框記 用以控 具有後 控制。 圖框記 形成裝 ;10a 〜 像作色 正後之 ΐ 部 1 0 a 1 0d作 •。此外 :部9、 部13 ; 設定之 顯示部 置上使 示區域 由複數 選擇等 1253036 如第1圖所示，顯示控制部4連接有介面部5a〜5d、DMA 讀出部8、比例變換部9、及色補正部10a〜10d、選擇器 1 2，並對所連接之該等構成組件作全體性之控制。又，顯 示控制部4係基於所連接之複數圖像形成裝置2的特性； 及藉由輸入部3輸入後、實行優先顯示之圖像資料的選擇 資訊、與有關圖像資料之顯示區域的資訊，決定顯示部i ! 中的顯示態樣，並實行對圖像顯示裝置內之各構成組件的 控制。所稱之顯示態樣，係指對：連接於圖像顯示裝置1 之複數圖像形成裝置2所輸出之圖像資料，在顯示部n中 之顯示位置（座標）、顯示區域（例如，所表現之解像度）、及 重合有複數圖面資料而何者應作優先顯示之顯示優先度， 作規定後之顯示態樣者。 又，顯示控制部4係具有基於決定後圖像資料之顯示態 樣’用以生成對應於圖像形成裝置2 a〜2 d之個別顯示資訊 的顯不資$生成裝置機能。該顯示資訊，係至少含有各圖 像形成裝置2a〜2d所生成、在圖像資料之顯示部丨丨上作 顯不的相關顯示區域資訊，例如，對應於顯示區域之相關 解像度資訊等。又’關於顯示控制部4 ,將於後文詳述。 介面部5 a〜5 d ’係設於輸出圖像資料於圖像顯示裝置1 的圖像形成裝置2 ’且對各圖像形成裝置2a〜2d通知顯示 L唬之構件。又，介面部5 a〜5 d，具有將自對應之圖像形 成裝置2所輸出之圖像資料的解像度等，輸出至顯示控制 部4之機能，尙具有基於顯示控制部4所決定之顯示形態 -12- !253〇36 ，將對各圖像形成裝置2作爲通知顯示資訊通知手段之機 能： 圖框記憶部6，係一種記憶來自各圖像形成裝置2所輸 出之圖像的組件。如第1圖所示，圖框記憶部6具有對應 各圖像形成裝置2之記憶區域c h 1〜c h 4，來自各圖像形成 裝置所輸出之圖像資料’可分別記憶在不同之區域上。 選擇器7，係基於藉由介面部5 a〜5 d所輸入之圖像資料 ，而僅通過寫入在圖框記憶部6中之圖像資料的一種組件 。亦即，在圖框記憶部6中’因爲必須寫入對應於顯示部 1 1上顯示畫面之區域的圖像資料，故選擇器7係基於依後 述介面部5 a〜5 d內之圖框寫入部2 0的輸入控制，而具有 選擇通過寫入畫像資料之機能。 DMA讀出部8，係在讀出來自圖框記憶部6之圖像資料 之際，實行選擇器7之控制。亦即，DMA讀出部8係具有 :接收來自顯示控制部4於顯示部1 1上有關顯示態樣之資 訊，可對對應於該顯示態樣之圖框記憶部6實行讀出之選 擇器7的控制機能。 比例變換部9，係對圖框記憶部所記憶之圖像資料，將 圖像形成裝置2之圖像作輔助性之放大者。亦即，圖像顯 示裝置1，係具有：將輸入於後述輸入部3中、對應於顯 示區域等之圖像資料，予以形成在各圖像形成裝置2中的 構成。此處，倘把圖像形成裝置2之圖像生成能力以超過 之顯示區域的圖像顯示在顯示部1 1上時’例外地，可藉該 比例變換部9實行補助作顯示區域之放大。 !253〇36 色補正部1 〇a〜1 〇d，係基於圖框記憶部6所讀出之圖像 資料，用以實行不同於原始生成圖像之色補正。色補正部 lGa〜i〇d，係分別由256字x8位元χ3最小構成的RAM圖 袠所構成，該種構成之實裝數量僅須等於所連接圖像形成 裝霞2的數量即可。 色補正部1 0 a〜1 0 d所作之色補正，包括色調整、灰度補 正等機能，係基於顯示控制部4之指示內容實行補正。在 色補正部10a〜10d中，用以顯示色補正內容之色補正表， 係容存於後述之顯示資訊記億部1 4內，基於來自顯示控制 部4之指示，適宜適切之色補正表即傳送於色補正部丨0a 〜10d ° 顯示部1 1係一種：將複數圖像形成裝置2中所生成、依 圖像顯示裝置1內之處理，彙整爲1個圖像資料予以作顯 示之構件。具體而言，顯示部11具有CRT、液晶面板、PDP 面板、有機EL面板等構成。 顯示資訊記憶部1 4，係用以容存須作顯示控制之資訊。 具體言之，顯示資訊記憶部1 4，係用以記憶在顯示控制部 4所決定、於顯示部1 1中作圖像顯示之相關顯示態樣資訊 ;用於顯示態樣之決定的資訊，亦即，相關於各圖像形成 裝置2之特性資訊、藉由輸入部3所輸入相關於顯示優先 度之資訊、與相關於各圖像資料之顯示區域資訊等。又， 顯示記憶部1 4，亦具有記憶圖像形成裝置2所決定解像度 別之資料格式資訊；及色補正部1 0a〜1 〇d使用之色補正表 資料’等之機能。又，作爲解像度別之資料格式資訊者， 1253036 倘連接之圖像形成裝置2爲具有一般之影像卡（vide〇 card) 的P C時，則爲記憶R G B 2 4位元者。 另一方面，圖像形成裝置2 a〜2 d，分別於其內部至少設 有圖像資料生成部1 5 ;及圖像生成控制部1 6等之構成。 圖像資料生成部1 5係用以生成對圖像形成裝置2作輸出之 圖像資料，例如，倘圖像形成裝置2係由一般之p c等構成 時’則圖表卡（graphing card)即可作爲圖像資料生成部1 5 之機能。 圖像生成控制部1 6，係基於圖像形成裝置2通知之顯示 資訊’對圖像資料生成部1 5指示：依所對應之顯示資訊而 作顯示態樣的圖像資料生成。如上述，顯示資訊係至少含 有在各圖像形成裝置2中所生成、於圖像資料之顯示部i 1 上作顯示、有關顯示區域之資訊，例如，含有對應於顯示 區域之有關解像度的資訊。因之，圖像生成控制部1 6，係 基於顯示資訊而可指示生成圖像資料之解像度等。在圖像 資料生成部1 5中，可生成所對應顯示資訊之高品質圖像資 料。又，圖像生成控制部1 6，亦可在圖像形成裝置2內以 硬體之方式構成之，本實施例中，係以有效活用既存構成 之圖像形成裝置作爲觀點，故係在圖像形成裝置2內裝設 有軟體之構成。亦即，本實施之形態，所裝設之所定的軟 體，實行對圖像形成裝置2內之演算機構的所定演算，依 此’乃可發揮作爲圖像生成控制部1 6之機能。 其次，說明介面部5 a〜5 d之構成。第2圖爲將介面部 5a〜5d之構成以模式之方塊圖作表示。如第2圖所示，介 -15- !253〇36 面部5 a〜5 d具有：圖像資料接收部1 7，用以收訊來自圖 像形成裝置2輸出之圖像資料；同步用FIFO記憶部1 8， 用以令受信之圖像資料成爲同步；資料變換部1 9，用以實 行自同步用FIFO記憶部1 8所輸出之圖像資料的資料變換 ;及圖框寫入部2 0，用以把資料變換後之圖像資料寫入於 圖框記憶部6。又，介面部5 a〜5 d具有：輸入資訊編碼部 2 1 ’係自同步用FIFO記憶部1 8所輸出之圖像資料中，抽 出顯示控制有用之資訊，而輸入於顯示控制部4 ; ED ID記 憶部22’用以對各圖像形成裝置2通知ED ID資訊；及USB ί空制部2 3，係用以在有關圖像顯示之圖像形成裝置2與顯 $ ί空制部4兩者間仲介其資訊之相互交流。 圖像資料接收部1 7，用以收訊來自所連接之圖像形成裝 置2所輸出的圖像資料。具體言之，倘輸入之圖像資料含 有類比資料時，則爲使用A/D變換器之構成，如爲實行差 動型數位資料之轉送時，則係使用所對應之LVDS(低電壓 差動傳訊）、TMDS(傳統小型化之差動傳訊）、GVIF(4兆位 %影像介面）等之各種傳送方式的構成。 資料變換部1 9，係用以對同步用FIFO記憶部1 8所輸出 之圖像資料實行必要之資料變換。例如，資料變換部i 9具 有=基於來自顯示控制部4之資訊，依畫素之內插或平均 化而用以作畫面縮小處理之資料變換，或由YUV形成實行 作R G B形式之色座標變換等機能。又，資料變換部ί 9，與 比例變換部9，同樣地，係依須要而作補助性之動作，故 亦可省略。 -16- 1253036 圖框寫入部20係將在對應之圖像形成裝置2中所生成、 因應須要施作處理後之圖像資料，予以寫入圖框記憶部6 者。具體言而，圖框寫入部20係基於來自顯示控制部4之 通知’而可將圖像資料寫入於所對應之已決定顯示區域、 該圖框記憶部6之區域中。又，由複數圖像形成裝置所輸 出之圖像資料群，如擬於顯示部1 1之畫面上重合顯示時， 圖框寫入部2 0亦具有限制未能在畫面上作顯示之相關區 域的圖像資料寫入於圖框記憶部6之機能。 輸入資訊編碼部2 1係基於含有所輸入圖像資料之資訊 ’例如，水平同步信號、垂直同步信號及顯示一致能之控制 信號等，將有關圖像資訊之資訊抽出，並輸出至顯示控制 部4者。具體言之，輸入資訊編碼部21具有，由該等信號 中抽出的輸入是否有效、圖像資料之解像度及輸入之資料 是否發生變更，等之資訊，並將抽出之資訊對顯示控制部 4作輸出之機能。 E DID記憶部22係用以記憶ED ID (延展顯示確認資料， Extended Display Identification Data)相關之資訊。又記憶 於ED ID記憶部22之資訊，並不須要全部和介面部5a〜5d 中之資訊相同，亦可爲不同之資訊。 U S B控制部2 3係用以實行其與圖像形成裝置2之間、圖 像資料以外之資料的傳送。本實施例中之圖像顯示系統， 其U S B控制部2 3係具有加諸於既知資料所用之傳送中、 將顯示控制部4中生成之顯示資訊對圖像形成裝置2作傳 送之機能。 -17- 1253036 在本實施例，具以上構成之介面部5的數量，僅爲對應 於所連接圖像形成裝置2之數量的構成，惟用以輸出圖像 資料之圖像形成裝置2，亦可爲對分別爲不同數量之介面 部5作連接之構成。因此，在本實施例，圖像顯示裝置， 可個別把握各個圖像形成裝置2之特性、例如輸出圖像之 最大解像度等，且可藉由U S B控制部2 3將個別之顯示資 訊通知個別之圖像形成裝置2者。 其次，說明顯示控制部4之動作。以在本實施例之圖像 顯示系統，係基於藉由輸入部3所輸入之資訊、及藉由輸 入資訊編碼部2 1所輸入各圖像形成裝置2之特性，藉顯示 控制部4實行顯示部1 1上之顯示態樣的決定，並基於決定 後之顯示態樣，實行對各構成要素作控制及顯示資訊之通 知。在下文中，首先因應於藉由輸入部3之資訊輸入，說 明關於對於顯示部1 1上之顯示態樣的決定及各構成要素 的控制等，之後，說明依顯示資訊之通知而由各圖像形成 裝置2輸出之圖像資料的輸出態樣。 最初，尙無特別作藉由輸入部3之使用者的指定，僅基 於各圖像形成裝置2之特性而作顯示區域等之指定時，說 明顯不控制部4對於圖像顯示裝置內之各構成要素的控制 內容。第3圖爲無特別指定使用者之狀況中，說明表示控 制4之控制流程圖。首先，顯示控制部4對是否經由輸入 資訊編碼部2 1作資訊輸入作判斷（步驟s 1 0 1 )，如判定係該 資訊輸入時，顯示控制部4即自輸入資訊編碼部2 1取得有 關各圖像形成裝置2中生成之圖像資料特性的資訊（步驟 S 1 0 2 )，之後，藉用該資訊決定使用各圖像資料之顯示部1 1 -18- 1253036 因此，顯示控制部4對色補正部1 〇 a〜1 0 d輸出對應於來 自各圖像形成裝置2之圖像資料、個別之色補正資料（步驟 S 1 07)。在以上，倘非爲藉由輸入部3作資訊之輸入，則對 於顯示態樣之決定及各構成要素之控制即終了。 其次，在藉由輸入部3輸入以有關顯示優先度之指定的 資訊時，說明關於依顯示控制部4所作顯示態樣之決定及 對圖像顯不裝置之各構成要素的控制內容。第4圖爲該種 狀況中，說明顯示控制部4之控制的流程圖。以下，即參 照第4圖作說明。 首先’顯不控制邰4係實行對來自輸入部3之相關顯示 優先度之資訊是否有輸入作判定（步驟S20 1 )，如有該種資 訊輸入時，即取得有關顯示優先度之資訊（步驟S 202)，並 記億在顯示記憶部1 4。因此，顯示控制部4係分別自介面 部5a〜5d所具之輸入資訊編碼部21取得資訊（步驟s2〇3)。 之後’決定考慮顯示優先度之顯示態樣。亦即，基於顯 示優先度及各圖像形成裝置2之特性，依所定之算法，實 行決定相關於各圖像形成裝置2輸出之圖像資料的顯示區 域及顯示場所等的資訊（步驟S 204)，並將該種顯示態樣記 憶在顯示資訊記憶部1 4。 之後的控制’則與步驟s 1 0 4〜S 1 0 7相同。亦即，顯示控 制部4係基於所決定之顯示態樣，分別將必要之資訊輸出 於資料變換部19、圖框寫入部2〇、DMA讀出部8、比例變 換部9及選擇器19等（步驟S2〇5〜S208)。由以上，在輸入 有顯示優先度之狀況中，即終了顯示態樣之決定及對各構 成要素之控制。 -20- 1253036 其次，藉由輸入部3而輸入有各圖像資料之顯示區 變更資訊時，說明關於藉該顯示控制部4作顯示態樣 定及對圖像顯示裝置各構成要素之控制內容。第5圖 種狀況之顯示控制部4的動作流程圖，以下即說明該 圖之流程。 首先，顯示控制部4係判定是否藉由輸入部3輸入 區域變更資訊（步驟S 3 0 1 )，如具有該種資訊之輸入時 取得顯示區域變更資訊（步驟S 302) ’並記憶在顯示資 憶部14。因此，顯示控制部4係由介面部5 a〜5 d所 輸入資訊編碼部21取得資訊（步驟S 3 03 )。 之後，在考量藉由輸入部3所輸入之顯示區域變更 後，作顯示態樣之決定。亦即，基於顯示區域變更資 各圖像形成裝置2之特性，依所定之算法，作含有來 圖像形成裝置2所輸出圖像資料之顯示區域及顯示場 相等資訊的顯示態樣之決定（步驟S 3 04)，並把該顯示 記憶於顯示記憶部1 4。 因此，顯示控制部4係基於決定後之顯示態樣而生 別之顯示資訊，藉由介面部5分別對圖像形成裝置2 : 通知顯示資訊（步驟S 305)。所通知之顯示資訊係送於 形成裝置2內所具之圖像生成控制部1 6，而圖像資料 控制部1 6係基於顯示資訊對圖像資料生成部1 5作控 故而，步驟S 3 06以下之其他步驟’係與步驟S 104〜 相同方式施行（步驟S 3 06〜S 309) ’全部之步驟乃終了 其次，說明關於基於所決定之顯示態樣，於顯示控 4中生成之顯示資訊、及基於顯示資訊於各圖像形成 域的 之決 爲該 第5 顯示 ，即 訊記 具之 資訊 訊及 自各 所等 態樣 成個 i〜2 d 圖像 生成 制。 S 107 〇 制部 裝置 -21- 1253036 中生成之圖像資料兩者之關係。第6-控制部4中生成、藉由介面部5通知 示資訊；及自圖像形成裝置2輸出之 模式圖。又，第6-1及6-2圖所示者 故僅爲連接一個圖像形成裝置2之狀 形成裝置時，其動作方式均同。又， 及6 - 2圖所示之例示，係使在顯示部 像度爲 QUXGA-WIDE(3840x2400)，圖 大QUXGA-WIDE大小之圖像資料的_ 如第6-1圖中所示，首先，基於在f 的顯示態樣，於顯示控制部4生成顯 5內所具之U S B控制2 3，對圖像形成 通知。具體而言，基於藉由輸入部3 控制部4決定使圖像形成裝置2所輸 域成爲全畫面之1/4,亦即解像度成爲 顯示態樣者。 因此，顯示控制部4基於所決定之 示裝置內之各構成要素實行控制，同 形成裝置2通知之顯示資訊。又，作 倘具有與自圖像形成裝置2輸出圖像 者均可，惟至少應含相關於圖像形成 料的解像度。 之後，依顯示控制部4所生成之顯 5內所備U S B控制部2 3通知圖像形β 置2因具有自備之USB端子與uSBi 1及第6，2圖於顯示 圖像形成裝置2之顯 圖像資料兩者之關係 ，係爲了容易理解， 態’如連接複數圖像 爲簡單計，故第6 - 1 1 1全體顯示之圖像解 像形成裝置2可作最 b出。 己決定之顯示部1 1上 示資訊’藉由介面部 裝置2作顯示資訊之 所輸入之資訊，顯示 出圖像資料之顯示區 1920x1200之區域的 顯示態樣而對圖像顯 時，實行生成對圖像 爲顯示資訊之內容， 資料之顯示區域有關 裝置2輸出之圖像資 示資訊，藉在介面部 ξ裝置2。圖像形成裝 空制部2 3作電氣連接 -22- 1253036 之構成，故能認識依顯示控制部4所生成之顯示資訊。具 ~ 體言之，依圖像形成裝置2內所具之圖像生成控制部1 6 ’ - 可認識顯示資訊而實行顯示資訊內容之解析。 因之，圖像形成裝置2，在圖像資料生成部1 5，基於顯 示資訊而生成圖像資料。亦即，圖像形成裝置2如具有可 生成最大384〇x24〇0解像度之圖像資料並輸出之機能時， 因在顯示資訊內含有相關於解像度之資訊，則圖像資料生 成部1 5乃基於圖像生成控制部1 6之控制，隨著顯示資訊 而生成192〇xl2〇0解像度之圖像資料，並傳送至介面部5 · 內所具之圖像資料接收部1 7。 對此，圖像顯示裝置1爲了收信在顯示資訊所要求內容 相同解像度的圖像資料，故在內部並不作圖像之放大、縮 小之顯示部1 1上即顯示如第6 - 1圖所示之圖像資料。以上 ’依對應於在圖像顯示裝置內所決定之顯示態樣的圖像形 成裝置2，乃確定了圖像資料之生成態樣，之後，即限制 不再有變更，圖像形成裝置2即對該種態樣之圖像資料往 復作生成、輸出之動作。 · 其次，由使用者之選擇擬變更第6- 1圖所示之狀態，亦 即擬變更來自圖像形成裝置2輸出之圖像資料的顯示區域 時’例如，關於變更爲把圖像資料在顯示部1 1上作全畫面 之有關顯示時，則參照第6-2圖而說明之。首先，顯示控 制部4係基於藉由輸入部3、來自使用者之資訊，乃可把 圖像形成裝置2所輸出之圖像資料的顯示區域，決定作爲 全畫面、亦即3 8 4 0 X 2 4 0 0解像度之顯示態樣。 -23- 1253036 因此，顯示控制部4係隨著顯示態樣實行對圖像顯示裝 置內之各構成要素的控制，同時，生成對應於該種顯示態 樣之顯不資訊。亦即，顯示控制部4係可生成含有可作全 畫面顯示之3840x2400解像度內容、作爲對圖像形成裝置 2作新通知之顯示資訊。如是，新生成之顯示資訊，可藉 由介面部5內所具之USB控制部23而通知圖像形成裝置2。 對於該種顯示資訊之通知，圖像形成裝置2至此所生成 之1 920x 1 200解像度的圖像資料作變化，並開始生成新的 384〇x2400解像度之圖像資料而輸出。因此，變更解像度 後之圖像資料，係由介面部5內所具之圖像資料接收部1 7 作收信，經圖像顯示裝置內各構成要素的處理後，即在顯 不部1 1上作全畫面之顯不。以上，在顯示部1 1上的顯示 區域的變化狀況’在本實施例的圖像顯示系統之處理即已 完了 ’之後’乃限制無法再作顯示態樣之變更，而持續保 持如第6-2圖之狀態。 其次，就圖像形成裝置2未直接對應顯示控制部4所決 定之顯示狀態的狀況作說明。依該圖像形成裝置2，例如 係無法生成、輸出3840x2400解像度之圖像資料，但具有 可生成、輸出最大爲1920x1200解像度之圖像資料。在本 實施例之該種圖像顯示系統，連接該種圖像形成裝置2時 ，亦可對該圖像形成裝置2之機能實行最大限度之處理。 第7圖爲在實現超過圖像形成裝置2之能力的顯示態樣 之本實施例，說明在本實施例之圖像顯示系統上之處理模 式圖。以下參照第7圖而說明之。首先，顯示控制部4係 -24- 1253036 基於藉由輸入部3所輸入之資訊等，而決定在顯示部η上 之顯示態樣，並基於該種顯示態樣對各構成要素作控制。 此處，顯示控制部4係基於藉由輸入部3的輸入資訊及 藉由輸入資訊編碼部2 1所把握之圖像形成裝置2的機能， 而實行其控制。在第7圖之例示，圖像形成裝置2僅能生 成·輸出最大也爲192〇χ 1 200解像度之圖像資料，惟必要 將作爲顯示態樣而由圖像形成裝置2之圖像資料作全畫面 ，亦即3 8 4 0 X 2 4 0 0之解像度顯示。對此，在本實施例，顯 示控制部4係把握藉由輸入部3與輸入資訊編碼部2 1之該 種狀況而施行適切之控制。具體而言，顯示控制部4係加 諸有如在第6 - 1、6 -2圖所說明之控制，對於比例變換部9 ，於由輸入來自圖像形成裝置2輸出之圖像資料之際，即 執行放大2倍比例之控制。 因此，顯示控制部4係生成依所決定顯示態樣之顯示資 訊，並藉由介面部5內所具之USB控制部23對圖像形成 裝置2通知顯示資訊。此處，含有關於解像度之資訊時， 作爲生成之顯示資訊，決定作爲含有對於顯示態樣之3 840 X 2 4 0 0的解像度。 藉該種顯示資訊之通知，圖像形成裝置2即開始作對應 於顯示資訊之圖像資料的生成、輸出。此處，如第7圖之 例示，有關在顯示資訊中所含有之解像度的資訊，變爲超 過圖像形成裝置2能力之値。因之，圖像形成裝置2係生 成輸出最接近顯示資訊所含解像度之値、亦即其爲上限値 之1 920x 1 200解像度的圖像資料。 -25- 1253036 之後’圖像顯示裝置內所具之圖像資料接收部1 7，收信 來自圖像形成裝置2輸出之圖像資料，並作如第6 - 1、6 - 2 圖相同狀況之處理，而比例變換部9則作顯示區域之放大 、更具體言之，係作圖像資料解像度之放大。亦即，由圖 像形成裝置2輸出之1 9 2 0 X 1 2 0 0解像度的圖像資料，係在 比例變換部9變換爲3 8 4 Ο X 2 4 0 0解像度之圖像資料，而施 作變換處理後的圖像資料，最後變成顯示在顯示部1 1上。 如以上之說明，本實施例中之圖像顯示系統具有，藉顯 不控制部4，基於藉由輸入部3所輸入之資訊等，決定在 顯示部11上顯示畫面之顯示態樣，並將基於所決定之顯示 態樣所生成之顯示資訊對圖像形成裝置2作通知的機能， 如是，則連接於本實施例之該種圖像顯示裝置的圖像形成 裝置2，即可對應於顯示態樣作圖像資料之輸出。 結果，在本實施例之圖像顯示系統，因可有效活用圖像 形成裝置2所備之圖像生成機能，故可減輕處理上之負擔 。亦即，圖像形成裝置2因爲當然具有圖像之生成機能， 而在本實施例之圖像顯示系統，係關於伴隨顯示區域的變 更等之必要圖像處理，因盡可能具有可令圖像形成裝置2 側負擔處理的構成，而可減輕在圖像顯示裝置內部之處理 負擔。 又，在本實施例之該種圖像顯示系統，如第6-1、6-2圖 所示，係把對應在例如顯示部1 1上之顯示區域之解像度的 圖像資料，就顯示圖像保持其最大之資訊，因而在圖像形 成裝置側2即可具有最高品位之圖像資訊的生成能力，而 -26- 1253036 圖像可作高品位之顯示。在習知之圖像顯示裝置具有於內 部對應顯示上之顯示區域的變化，進行縮小及放大之處理 的構成，此種習用之處理，係依所定之算法作劃一性之執 行故在使用習用之圖像顯示裝置時，在伴隨所輸入之圖像 資料的顯示區域變更而變更解像度之際，其圖像品位即會 劣化’故存在有難以顯示高品位圖像之問題。 對此，在本實施例之圖像顯示系統，爲了指示依照顯示 區域之變化而對圖像形成裝置2生成圖像資料之解像度等 之變更，故所連接之圖像形成裝置2乃可輸出對應於顯示 區域最適合之圖像資料。結果，用本實施例之圖像顯示系 統，也可於作顯示區域之放大、縮小等狀況時，放大、縮 小後所顯示之圖像，不致使品位低下，而可作高品位圖像 之顯示。 又，本實施例之圖像顯示系統，具有可對具有高資訊量 之圖像作顯示的優點。亦即，使用習用之圖像顯示裝置時 ，既使發生顯示區域之變化時，由圖像形成裝置2輸出之 圖像資料亦不致有所變化，僅單爲顯示圖像大小產生變化 。結果’既使擬知道例如使用者側之圖像形成裝置所輸出 之圖像資料的細部而指示顯示區域之放大時，僅單作圖像 大小之放大，故具有不能得知細部內容之問題。 對此’在本貫施例之圖像顯示系統，在例如係放大顯示 區域之狀況時，係依對應於顯示區域之放大的顯示資訊， 在圖像形成裝置2作輸出，於圖像形成裝置2側，即可生 成、輸出對應於顯示區域之放大的高精細圖像資料。因之 -27- 1253036 ，在本實施例之圖像顯示系統乃具有對應於顯示區域之變 化，可將具有含於變化之顯示區域內、可能之最大資訊量 的圖像予以顯示之優點。 此外，在本實施例之圖像顯示系統，備置有實行補助處 理的比例變換部9、資料變換部1 9，故亦具有優點。亦即 ，本實施例之圖像顯示系統，係把伴隨原則性顯示區域之 變更的處理委由圖像形成裝置2，在圖像顯示裝置內部則 作圖像形成裝置2側難以處理之工作。依此，如第7圖所 示無法對應於顯示部1 1之解像度的圖像形成裝置2，亦可 連接於本實施例之圖像顯示系統使用，因而具有可對應於 多樣化圖像形成裝置2之優點。又，內部所具之比例變換 部9確具有作爲補助性處理裝置之機能，故可令圖像形成 裝置2之機能發揮至最大限度，並可對應於多樣化之圖像 形成裝置者。 又，依本實施例之圖像顯示系統，具有複數之介面部5 ’對應於連接之複數個圖像形成裝置2，故藉顯示控制部 4可個別生成分別對應於來自圖像形成裝置2之圖像資料 的顯示資訊。據此，即可分別對各圖像形成裝置2供給最 適當之資訊’圖像顯示裝置並不拘泥僅爲連接複數個圖像 形成裝置2之構成’亦可以個別之圖像顯示裝置對個別之 圖像形成裝置2的構成，同樣可達成相同動作與機能。亦 即’依連接於圖像顯示裝置丨，各圖像形成裝置2，不須考 慮其與其他圖像形成裝置2之關係等，可基於自圖像顯示 裝置所通知之顯示資訊，實行圖像資料之生成、輸出等。 -28- 1253036 因此，在本實施例之圖像顯示系統，不必使用爲了對應多 顯示、須再添置特別的影像卡（video card)之特別圖像形成 裝置，利用習用單一顯示用之最適化構造的圖像形成裝置 即可。依此’在本實施例之圖像顯示裝置乃具有可有效活 用既有圖像形成裝置之優點。 此外，與介面部5同樣的，亦具有將色補正部1 〇以對應 於圖像形成裝置2之數量，複數地設在圖像顯示裝置內之 優點。首先’依據將色補正部1 〇設於圖像顯示裝置內部， 即可實行確切之色補正。亦即，在顯示部1 1中的現實之發 色狀態’依顯示部1 1之物理構造，難免滋生有些微之差異 ’故在圖像形成裝置2側作色補正時，恐有未能實現所希 求色顯示之問題。爲此，依本實施例之圖像顯示系統，因 色補正部1 0係設於圖像顯示裝置內，故可對應於顯示部 1 1之特性確實施作色補正。 又’亦具有使色補正部1 〇之數量僅設成對應於圖像形成 _ g 2數量之優點。例如，倘連接之複數個圖像形成裝置 2爲分別性質相異時，在對各個圖像作顯示之際，即可施 行不同之色補正。在此狀況中，把自複數個圖像形成裝置 2輸出之圖像資料同時顯示在顯示部丨丨上之際，當然須對 各別之圖像資料作不同之色補正處理，而在本實施例之圖 像顯示系統’因圖像顯示裝置丨內所設之色補正部1 〇係對 應於圖像形成裝置2之數量，故可執行對不同之圖像資料 之色補正處理。 -29- 1253036 (五）圖式簡單說明 ’ 第1圖爲本發明圖像顯示系統實施例之全體構成方塊圖。 第2圖爲構成圖像顯示裝置之介面部的構成方塊圖。 第3圖爲在沒有經由輸入部之資訊輸入時，顯示控制部 之動作流程圖。 第4圖爲經由輸入部輸入關於顯示優先度之資訊時，顯 示控制部之動作流程圖。 ‘ 第5圖爲經由輸入部輸入關於顯示區域之資訊時，顯示 控制部之動作流程圖。 · 第6-1圖爲用以說明顯不資訊與在圖像形成裝置中所生 成圖像資料兩者之關係模式圖。 % 6-2圖爲用以說明顯不資訊與在圖像形成裝置中所生 成圖像資料兩者之關係模式圖。 第7圖爲在不能直接在對應於所決定之顯示態樣的圖像 开夕成裝置2’用以說明顯不資訊與在圖像形成裝置2所生 成圖像資料之關係模式圖。 主要部分之代表符號說明 ♦ 1 圖像顯示裝置 2 圖像形成裝置 3 輸入部 4 顯示控制部 5 介面部 6 圖框記憶部 7 選擇器 -30- D Μ A讀出部 比例變換部 色補正部 顯不部 選擇器 CRTC 3 顯示資訊記憶部 圖像資料生成部 圖像生成控制部 圖像資料接收部 記憶部 資料變換部 圖框寫入部 輸入資訊編碼部 記憶部 u S B控制部 圖像形成裝置 -31-1253036 玖, Description of the invention: (1) Technical Field to Which the Invention Is A Field of the Invention The present invention relates to an image display device and an image display system which can display image data output from a plurality of image forming apparatuses on one screen. (ii) Prior art In recent years, There has been an image display device, Can have multiple input channels, Image data formed in different image forming apparatuses, Formed in a picture. Such an image display device having a multi-monitor function, E.g, An input terminal for inputting image data from each image forming apparatus, The input image data is collected on one screen for display. Thus, the plurality of image data can be displayed on the same screen. also, See also another image display device, The image data input by the plurality of image forming devices can be enlarged, Reduce image processing such as reduction. An image processing device is disposed inside the image display device. And in the image data output by the image forming device, Including the identification information 'to display the data system which image forming device is formed, And information necessary for image processing. In a device having such a composition, The image display device is based on identification information. And the identification data is output from which image forming device, For image data output by the same image forming apparatus, All amplification, Reduced image processing (for example, Patent Document 1 refers to). Patent Document 1: Japanese Patent Laid-Open No. 2 0 0 2 - 1 4 6 6 4 SUMMARY OF THE INVENTION Problems to be Solved by the Invention However, Using an image display device having multiple display functions, However, it has the problem that the function of the -5-1253036 image forming apparatus and the image data generated by the image forming apparatus cannot be effectively utilized. The following is a description of the problem one by one. For the sake of simplicity, The image forming apparatus can be assumed to be a PC. Using a conventional multi-display function, When the image display device of the image forming apparatus is used, the image forming device outputs image data corresponding to the entire screen of the image display device. Specifically, E.g, When the display number of the image display device is XGA (1024x768), The image display device and the plurality of image forming devices connected thereto, Generate image data corresponding to X G A respectively. The output is made to the image display device. On the other hand, in order to make the image data output by the complex image forming apparatus visible on the same screen, On the image display device side, Image size compression must be performed. E.g, When it is 4 image forming apparatuses, The image data separately outputted must be compressed to 1/4 of the total picture number. That is, it must be compressed to a size of 1 2x3 84. to this end, For image data generated in the image forming apparatus, It is necessary to process it again in the image display device. Because of it, Using an image display device having multiple display functions, Although the image forming apparatus has an image forming function, However, it is necessary to carry out the processing of other sizes. in this way, The conventional technology is required to have both a reproducible image forming device and an image display device. If it is intended to be effective for the functions in the image forming apparatus, It will be very difficult. also, An image display device having a conventional multi-display function, The image data of the amount of information displayed, It is also impossible to equate to the amount of information of the image data generated by the image forming apparatus side. This is also a problem. the following, There is an image display device capable of displaying the XGA size, With the XGA size pixel -6-1253036 material generation function, Image data can be displayed simultaneously on the same screen. An image display system of an image forming apparatus that can output related 5 1 2 X 3 8 4 image data will be described as an example. In this kind of image display system, It is assumed that the image data output from the image forming apparatus of the user can be obtained as a full screen. that is, Can be made; [〇 2 4 X768 resolution display. In this situation, It has a picture of the conventional multi-display function. Image data having a resolution of 5 丨 2 x 3 8 4 output by the image forming apparatus, Simply double the magnification display. That is, an image forming apparatus constituting an image display system, Although it is possible to directly output image data of XGA size, However, the image forming apparatus also outputs image data having a small amount of information of 512 x 3 8 4 resolution. The image size is still doubled on the image display device side. Because of it, The above image display system 'on the image forming apparatus side, The image showing the amount of information is lower than the amount of information originally realized. The present invention is in view of the foregoing various problems, Provided is an image display device and an image display system for the purpose of maximizing the function of the image forming device. It can also be used as an image displayer with a large amount of information. In order to solve the above problems and achieve the intended purpose, For example, the image display device of the first application of the patent scope, An image display device capable of displaying image data output by a plurality of image forming apparatuses on one screen. have: Display information notification device, a plurality of image forming apparatuses of the plurality of image forming apparatuses, Notify individual display information; The image input device is followed by the display information. The image resource 253036 output by the image forming apparatus is input as input; And display device, Displaying the generated drawing data based on the image data input by the image input device. Etc. constitutes a feature. According to the invention of claim 1 of the patent application, Since each of the connected image forming apparatuses notifies the individual display information, Therefore, it is possible to generate an image for each image forming apparatus based on individual display information. Therefore, the function of the image forming apparatus can be effectively utilized' and the processing load on the image display apparatus side can be alleviated. Further, as shown in the image display device of claim 2, In the above invention, the display information is characterized by at least information relating to the resolution. Further, as shown in the image display device of claim 3, In the above invention, the device has a change input device. Used to input the display device, Change information of the display aspect of the screen data; And the display information generating device is configured to generate display information corresponding to each of the image forming devices, For the experts. And, as for the image display device of the 4th patent of the application scope of the application, In the above invention, 尙 has a required input device, Used to input image processing requirements from respective outputs of a plurality of such image forming devices; And image processing device, Based on the image processing requirements input to the required input device, Performing image processing corresponding to each of the image forming apparatuses on the image material ' Etc. constitutes a feature. also, For example, the image display device of claim 5, In the above invention, This image processing system color correction process is a feature. -8- 1253036 </ RTI> as shown in the image display device of claim 6 a plurality of image forming apparatuses; And an image display device capable of displaying the image data output by the plurality of image forming apparatuses on one screen. Image display system, The image display device has a display information notifying device </ RTI> for a plurality of respective image forming devices. Notifying the individual display information 'image input device' is the follow-up information. Inputting image data from the image output device output; And display device, And is configured to display screen data generated based on image data input by the image input device; As for the plural image forming apparatus, Then having an image data generating device; And image generation control device, Used to indicate the image data generating device, Display the information as notified, Display image data generation, For the experts. also, Such as the image display system of claim 7 of the patent scope, In the invention, The function of the image control device is The soft body installed in the image forming apparatus can realize the calculation of the image forming apparatus as a characteristic. Advantageous Effects of Invention According to the image display device and image display system of the present invention, The composition is notified of the individual display information for each of the connected image forming apparatuses. Therefore, for each image forming apparatus, The image data can be generated based on the individual display information', so that the function of the image forming apparatus can be effectively utilized. It can also reduce the processing burden of the image display device side. The following is a description of the preferred embodiment of the image display system (hereinafter referred to as an embodiment). also, The picture is a pattern, In practice, there may be some differences between -9 and 1253036. also, The symbol of the component in the drawing, It is the same constructor, For example, "image forming apparatus 2a", , , Image forming apparatus 2b", etc. As needed, They may be collectively referred to as "image forming apparatus 2". (4) Embodiments of an image display system according to an embodiment of the present invention, A type of image data from a plurality of image forming apparatuses displayed on a screen. It has a plurality of image forming devices; And an image display device, It is output from the complex image forming device, Add together in the display area of the image data, And output individual display information, In the image forming apparatus, The image data formed by the display information is displayed on the screen. The composition of the etc. Figure 1 is the present embodiment, The entire image display system is a block diagram. As shown in Fig. 1, the image display system according to this embodiment has an image display device; The plurality of image forming apparatuses 2a to 2d connected to the image display device 1, And so on. also, The number of image forming apparatuses 2 is not limited to only four. Any number is 可 The image display device 1 has: Input unit 3, a display area or the like for specifying image data from the output of the plurality of image forming apparatuses 2 of the user; The control unit 4 is displayed, Based on the information input by the input unit 3, The display information notifying the image forming apparatus 2 is generated on the image forming apparatus, And the interface portion 5' is for notifying the image display device 2 of the display information formed by the display control portion 4, The composition of the etc. In the picture, The interface portion 5 is the same number of both the image forming apparatus 2 to which the image display device 1 is connected. In the present embodiment, the description is made by connecting four image forming apparatuses 2a to 2d as an example. The face portions 5a to 5d are arranged corresponding to the image forming apparatuses 2a to 2cl. 1253036 Further, the image display device of the embodiment, Between the face 5a~5d memory part (frame mem〇ry)6, It is equipped with a selector (selec is used to select the image data from the input of the face 5 a~5 d, Write to the memory section 6, Read out information; And 〇 μ a reading unit 8, The readout action of the selector 7 is controlled. also, Within 5 to 5 days of the face, The frame writing unit 2 0, The image display device 1 for performing the writing operation of the selector 7 has a ratio conversion unit 9, For the image data read from the memory section 6, As needed, Performing a scale conversion on the image data outputted by each image 2 a~2 d; The color correction window 1 〇 d ′ is used to correct the map outputted by each of the image forming apparatuses 2 a to 2 d; Display unit 1 1, The color correction portions a to 丨〇 d are used as color compensation image data is displayed on the screen; And selector 1 2, It is set between the color complement 5~1 〇 d and the display unit 1 1 . Used to select the color correction part 1 〇 a~ in the processed image data, Image data input device image input device 1 input to display unit n With D Μ A reading unit 8, Proportional transformation CRTC for specifying the timing of the action of the selector 12: And displaying the information memory unit 1 4, It is used to memorize the display information displayed by the control unit 4. The input 邰3' is the image data displayed on the 1 1 screen from each image forming apparatus 2, The implementation of the image data in the image display device priority display order, And can enlarge the display of image data, Zoom out and other instructions. Specifically, Input unit 3, a switch is formed, Information for outputting image data to the display control unit 4. With frame t 〇 r ) 7, The frame is used to control the post control. The frame is marked to form a package ; 10a ~ Like the color of the front part of the 1 1 0 a 1 0d for •. In addition: Department 9, Part 13 ; Set the display area, set the display area to the plural, etc. 1253036 As shown in Figure 1, The display control unit 4 is connected to the interface portions 5a to 5d, DMA reading unit 8, Ratio conversion unit 9, Color correction portions 10a to 10d, Selector 1 2, The overall control of the connected components is controlled. also, The display control unit 4 is based on the characteristics of the connected plurality of image forming apparatuses 2; And after input by the input unit 3, The selection of image data for priority display, information, Information about the display area of the image data, Decide on the display i! In the display, Control of each component in the image display device is also performed. What it is called, Means to: Image data output by the plurality of image forming apparatuses 2 connected to the image display device 1, Display position (coordinate) in the display portion n, Display area (for example, The resolution of the performance), And superimposed with multiple drawing data and which should be prioritized for display priority. The person who shows the appearance after the regulation. also, The display control unit 4 has a display function for generating individual display information corresponding to the image forming apparatuses 2a to 2d based on the display state of the determined image data. The display information, At least the image forming devices 2a to 2d are generated, Displaying relevant display area information on the display unit of the image data, E.g, Corresponds to the relevant resolution information of the display area, and the like. Further, regarding the display control unit 4, It will be detailed later. The interface portions 5a to 5d' are provided to the image forming apparatus 2' that outputs image data to the image display device 1, and the respective image forming apparatuses 2a to 2d are notified of the display L?. also, Face 5 a~5 d, There is a resolution of the image data output from the corresponding image forming device 2, and the like. Output to the function of the display control unit 4, 尙 has a display form determined by the display control unit 4 -12- ! 253〇36, Each image forming apparatus 2 is used as a function of notifying the display information notification means: Frame memory unit 6, A component that memorizes an image output from each image forming apparatus 2. As shown in Figure 1, The frame memory unit 6 has memory areas c h 1 to c h 4 corresponding to the respective image forming apparatuses 2, The image data 'outputted from each image forming apparatus' can be separately memorized in different areas. Selector 7, Based on the image data input through the face 5 a~5 d, It is only a component of the image data written in the frame storage unit 6. that is, In the frame storage unit 6, 'because it is necessary to write image data corresponding to the area on the display portion 1 1 on which the screen is displayed, Therefore, the selector 7 is based on the input control of the frame writing unit 20 in the interface 5a to 5d, which will be described later. It has the function of selecting to write image data. DMA reading unit 8, When reading the image data from the frame memory unit 6, The control of the selector 7 is carried out. that is, The DMA reading unit 8 has: Receiving information about the display state from the display control unit 4 on the display unit 1 1 The control function of the read selector 7 can be performed on the frame memory unit 6 corresponding to the display aspect. Ratio conversion unit 9, The image data stored in the memory of the frame, The image of the image forming apparatus 2 is an auxiliary magnified. that is, Image display device 1, Has: It will be input to the input unit 3 to be described later. Corresponding to the image data of the display area, etc. The configuration is formed in each image forming apparatus 2. Here, If the image generating capability of the image forming apparatus 2 is displayed on the display portion 1 1 in an image exceeding the display area, exceptionally, The ratio conversion unit 9 can perform subsidization for enlargement of the display area. ! 253〇36 color correction part 1 〇a~1 〇d, Based on the image data read by the frame storage unit 6, Used to perform color correction different from the original generated image. Color correction part lGa~i〇d, It consists of a RAM graph consisting of a minimum of 256 words x 8 bits χ3. The number of the components to be assembled must be equal to the number of the attached images forming the package 2 . The color correction made by the color correction part 1 0 a~1 0 d, Including color adjustment, Gray level correction and other functions, The correction is performed based on the instruction content of the display control unit 4. In the color correction positive portions 10a to 10d, a color correction table for displaying the color correction content, The system is stored in the display information section of the Ministry of Information, which will be described later. Based on the instruction from the display control unit 4, Appropriate color correction table is transmitted to the color correction part 丨0a ~10d ° Display part 1 1 is a type: Generated in the plural image forming apparatus 2, According to the processing in the image display device 1, The summary is a component of the image material to be displayed. in particular, The display unit 11 has a CRT, LCD panel, PDP panel, It is composed of an organic EL panel or the like. Display information memory unit 1 4, It is used to store information that needs to be displayed for control. Specifically, Display information memory unit 1 4, Used to memorize, as determined by the display control unit 4, Corresponding display aspect information for image display in the display unit 1 1 ; Information used to display the decision of the aspect, that is, Related to the characteristic information of each image forming apparatus 2, The information related to the display priority is input by the input unit 3, And display area information related to each image data. also, Display memory unit 1 4, Also having data format information determined by the memory image forming apparatus 2; And color correction section 1 0a~1 〇d use color correction table data 'etc. also, As the information format information of the resolution, 1253036, if the connected image forming apparatus 2 is a P C having a general video card (vide〇 card), Then it is the memory of R G B 2 4 bits. on the other hand, Image forming apparatus 2 a to 2 d, Having at least an image data generating unit 15 therein; And the image generation control unit 16 and the like. The image data generating unit 15 is configured to generate image data output to the image forming apparatus 2, E.g, When the image forming apparatus 2 is constituted by a general p c or the like, a graphing card can be used as the image data generating unit 15 . Image generation control unit 1 6, The image data generating unit 15 is instructed based on the display information notified by the image forming apparatus 2: Image data generated according to the display information corresponding to the display. As above, The display information is included at least in each of the image forming apparatuses 2, Displayed on the display unit i 1 of the image data, Information about the display area, E.g, Contains information about the resolution of the display area. Because of it, Image generation control unit 1 6, Based on the display information, it is possible to indicate the resolution of the generated image data, and the like. In the image data generating unit 15, High quality image data for the corresponding display information can be generated. also, Image generation control unit 1 6, It may also be constructed in a hardware manner in the image forming apparatus 2, In this embodiment, Taking the image forming apparatus of the existing composition as an effective point of view, Therefore, a configuration in which a soft body is mounted in the image forming apparatus 2 is employed. that is, The form of this embodiment, The installed software, Performing a predetermined calculation on the calculation mechanism in the image forming apparatus 2, In this way, the function as the image generation control unit 16 can be exhibited. Secondly, Explain the composition of the face 5 a to 5 d. Fig. 2 is a block diagram showing the constitution of the face portions 5a to 5d. As shown in Figure 2, Introduction -15- ! 253〇36 Face 5 a~5 d has: Image data receiving unit 17 For receiving image data output from the image forming apparatus 2; Synchronization FIFO memory unit 18 Used to synchronize the image data of the letter; Data conversion unit 1 The data conversion for realizing the image data output by the self-synchronization FIFO memory unit 18; And the frame writing unit 2 0, The image data for converting the data is written in the frame memory unit 6. also, The face 5 a~5 d has: The input information encoding unit 2 1 ' is in the image data output from the synchronization FIFO memory unit 18. Extracting information useful for display control, And input to the display control unit 4; The ED ID memory unit 22' is configured to notify the image forming apparatus 2 of the EDI ID information; And USB ί Air Department 2 3, It is used to exchange information between the image forming apparatus 2 and the display unit 4 for image display. Image data receiving unit 17 It is used to receive image data output from the connected image forming apparatus 2. Specifically, If the input image data contains analog data, In order to use the composition of the A/D converter, In the case of transfer of differential digital data, Use the corresponding LVDS (low voltage differential communication), TMDS (traditional miniaturized differential messaging), The configuration of various transmission methods such as GVIF (4 Mbit % image interface). Data conversion unit 1 It is used to perform necessary data conversion on the image data output from the synchronization FIFO memory unit 18. E.g, The data conversion unit i 9 has = based on information from the display control unit 4, Data transformation for image reduction by interpolation or averaging of pixels, Or it is formed by YUV to perform functions such as color coordinate conversion in the form of R G B. also, Data conversion unit ί 9, And the ratio conversion unit 9, Similarly, A supplementary action, depending on the need. Therefore, it can be omitted. -16- 1253036 The frame writing unit 20 is generated in the corresponding image forming apparatus 2, In response to the need to apply the processed image data, It is written in the frame memory unit 6. Specifically, The frame writing unit 20 can write image data in the corresponding determined display area based on the notification from the display control unit 4, This frame is in the area of the memory unit 6. also, An image data group output by the plurality of image forming apparatuses, If it is to be displayed on the screen of the display unit 1 1 , The frame writing unit 20 also has a function of limiting the image data of the relevant area that cannot be displayed on the screen to the frame memory unit 6. The input information encoding unit 2 1 is based on information containing the input image data ' For example, Horizontal sync signal, Vertical sync signal and control signal for displaying uniformity, etc. Extract information about image information, And output to the display control unit 4. Specifically, The input information encoding unit 21 has, Whether the input extracted from the signals is valid, Whether the resolution of the image data and the input data have changed, Information, etc. The extracted information is output to the display control unit 4. The E DID memory unit 22 is used to store the EDID (extended display confirmation data, Extended Display Identification Data). Also remembering the information in the ED ID memory unit 22, It is not necessary to have the same information in all of the faces 5a to 5d. It can also be different information. The U S B control unit 23 is configured to perform between the image forming device 2 and the image forming device 2 Transmission of data other than image data. The image display system in this embodiment, The U S B control unit 23 has a transmission applied to the known data, The display information generated by the control unit 4 is transmitted to the image forming apparatus 2 for display. -17- 1253036 In this embodiment, The number of the face 5 having the above composition, It is only a configuration corresponding to the number of connected image forming apparatuses 2, The image forming apparatus 2 for outputting image data, It is also possible to form a connection for a different number of interface portions 5, respectively. therefore, In this embodiment, Image display device, The characteristics of each image forming apparatus 2 can be individually grasped, For example, the maximum resolution of the output image, etc. The individual display information can be notified to the individual image forming apparatus 2 by the U S B control unit 23. Secondly, The operation of the display control unit 4 will be described. In the image display system of the embodiment, Based on the information input by the input unit 3, And the characteristics of each image forming apparatus 2 input by the input information encoding unit 21, The display control unit 4 performs the determination of the display aspect on the display unit 1 1 . And based on the display after the decision, A notification of the control and display of information on each component is implemented. below, First, in response to the information input by the input unit 3, The determination of the display aspect on the display unit 1 1 and the control of each component are explained. after that, An output aspect of the image data output by each image forming apparatus 2 in response to the notification of the display information will be described. initial, 尙No special designation by the user of the input unit 3, When designating a display area or the like based on the characteristics of each image forming apparatus 2, It is apparent that the control unit 4 does not control the components of the image display device. Figure 3 shows the situation without a specific user. The description shows the control flow chart of Control 4. First of all, The display control unit 4 determines whether or not to input information via the input information encoding unit 2 (step s 1 0 1 ), If it is determined that the information is entered, The display control unit 4 acquires information on the image material characteristics generated in each image forming apparatus 2 from the input information encoding unit 2 1 (step S 1 0 2 ), after that, By using this information, it is decided to use the display portion of each image data 1 1 -18 - 1253036. The display control unit 4 outputs image data corresponding to the image forming apparatus 2 from the color correction units 1 〇 a to 1 0 d, Individual color correction data (step S 107). In the above, If it is not the input of information by the input unit 3, The decision on the display aspect and the control of each component are finalized. Secondly, When the information about the designation priority is input by the input unit 3, The determination of the display aspect by the display control unit 4 and the control content of each component of the image display device will be described. Figure 4 shows the situation in this case. A flowchart showing the control of the display control unit 4 will be described. the following, That is, it is explained in Fig. 4. First, the display control system 4 determines whether or not there is input of information on the priority of the display from the input unit 3 (step S20 1 ). If there is such information input, That is, information about the display priority is obtained (step S202), And remember that 100 million is in the memory section of the display. therefore, The display control unit 4 acquires information from the input information encoding unit 21 included in the interface units 5a to 5d (step s2〇3). After that, it was decided to consider the display of the priority. that is, Based on the display priority and the characteristics of each image forming apparatus 2, According to the algorithm, The information relating to the display area and the display place of the image data output from each image forming apparatus 2 is determined (step S204), This kind of display state is recorded in the display information memory unit 14. The subsequent control ' is the same as steps s 1 0 4 to S 1 0 7 . that is, The display control unit 4 is based on the determined display aspect. The necessary information is output to the data conversion unit 19, Frame writing unit 2〇, DMA reading unit 8, The proportional conversion unit 9, the selector 19, and the like (steps S2〇5 to S208). From the above, In the case where the input has a display priority, That is to say, the decision to display the appearance and the control of each constituent element. -20- 1253036 Secondly, When the display area of each image data is changed by the input unit 3, the information is changed. The contents of control by the display control unit 4 and the control elements of the image display device will be described. Fig. 5 is a flow chart showing the operation of the display control unit 4 in the case of The flow of the diagram is explained below. First of all, The display control unit 4 determines whether or not the area change information is input by the input unit 3 (step S 3 0 1 ). When there is input of such information, the display area change information is acquired (step S302)' and is memorized in the display memory unit 14. therefore, The display control unit 4 acquires information from the input information encoding unit 21 via the interface portions 5a to 5d (step S3 03). after that, After considering the change of the display area input by the input unit 3, Make a decision to display the situation. that is, The characteristics of each image forming apparatus 2 are changed based on the display area, According to the algorithm, Determining a display aspect including the display area of the image data output from the image forming apparatus 2 and the display field equivalent information (step S 3 04), The display is memorized in the display memory unit 14. therefore, The display control unit 4 displays the display information based on the determined display state. The image forming apparatus 2 is separately applied to the image forming apparatus 2 by: The notification display information (step S305). The notified display information is sent to the image generation control unit 1 6 in the forming device 2. The image data control unit 16 controls the image data generating unit 15 based on the display information. The other steps below step S 3 06 are performed in the same manner as step S104~ (steps S 3 06 to S 309). Description of the display based on the determined display, Display information generated in the display control 4, And based on the display information in each image forming domain, the fifth display is That is, the information and the information from each of them are an i~2d image generation system. S 107 部 Department The relationship between the image data generated in the device -21-1253036. The sixth-control unit 4 generates, Notifying the information by the interface 5; And a pattern diagram output from the image forming apparatus 2. also, As shown in the figures 6-1 and 6-2, only when one image forming apparatus 2 is connected, the apparatus is formed. The way of action is the same. also, And the illustration shown in Figure 6-2, So that the image quality on the display is QUXGA-WIDE (3840x2400), Figure _ Image of large QUXGA-WIDE image data, as shown in Figure 6-1, First of all, Based on the display aspect of f, The display control unit 4 generates the U S B control 2 3 in the display 5, A notification is formed on the image. in particular, The control unit 4 determines, based on the input unit 3, that the field to be input by the image forming apparatus 2 is 1/4 of the full screen. That is, the resolution becomes the display. therefore, The display control unit 4 performs control based on each component in the determined device. The display information notified by the forming device 2 is formed. also, If it has an image output from the image forming apparatus 2, However, at least the resolution associated with the image forming material should be included. after that, The U S B control unit 23 in the display 5 generated by the display control unit 4 notifies the image form β that the self-provided USB terminal and the uSBi 1 and the sixth are provided. 2 is a diagram showing the relationship between the image data of the image forming apparatus 2, For easy understanding, State's as a simple image, Therefore, the image decoding device 2 shown in the entirety of the sixth to eleventh can be made the most. The information displayed by the display unit 1 1 is displayed by the face device 2 for displaying information. The display area of the image data is displayed in the display area of the 1920x1200, and the image is displayed. Implementing the generation of the image to display the content of the information, The display area of the data relates to the image information output by the device 2, By means of the facial device 2 device 2. The image forming device vacant portion 2 3 is configured as an electrical connection -22- 1253036, Therefore, the display information generated by the display control unit 4 can be recognized. With ~, in fact, The image generation control unit 1 6 ' in the image forming apparatus 2 can recognize the display information and perform analysis of the displayed information content. Because of it, Image forming apparatus 2, In the image data generating unit 15 5, Image data is generated based on the displayed information. that is, When the image forming apparatus 2 has a function of generating image data of a maximum resolution of 384 〇 x 24 〇 0 and outputting it, Because the information displayed in the display contains information about the resolution, The image data generating unit 15 is controlled based on the image generation control unit 16. Generate image data of 192〇xl2〇0 resolution as the information is displayed. And transmitted to the image data receiving unit 17 in the interface 5·. In this regard, The image display device 1 receives image data of the same resolution required for displaying information in order to receive information. Therefore, there is no enlargement of the image inside, The image data as shown in Fig. 6-1 is displayed on the reduced display portion 1 1. The image forming device 2 corresponding to the display aspect determined in the image display device is Is to determine the generation of image data, after that, That is, there are no more changes to the restrictions. The image forming apparatus 2 generates the image data of the state, The action of the output. · Second, It is proposed by the user to change the state shown in Figure 6-1. That is, when it is intended to change the display area of the image data output from the image forming apparatus 2', for example, When it is changed to display the image data on the display unit 1 1 for the full screen, Then refer to Figure 6-2 for illustration. First of all, The display control unit 4 is based on the input unit 3, Information from users, The display area of the image data output by the image forming apparatus 2, Decided to be the full screen, That is, the display of 3 8 4 0 X 2 4 0 0 resolution. -23- 1253036 Therefore, The display control unit 4 performs control of each component in the image display device in accordance with the display aspect. Simultaneously, A display of information corresponding to the display state is generated. that is, The display control unit 4 can generate 3840x2400 resolution content that can be displayed on the full screen. As display information for newly notifying the image forming apparatus 2. If so, Newly generated display information, The image forming apparatus 2 can be notified by the USB control unit 23 provided in the face portion 5. For this kind of notification of displaying information, The image data of the 1 920 x 1 200 resolution generated by the image forming apparatus 2 to this point is changed, And began to generate a new 384 〇 x 2400 resolution image data and output. therefore, Image data after changing the resolution, The image data receiving unit 1 7 in the interface 5 receives the message. After processing the components in the image display device, That is, the full screen is displayed on the display portion 1 1 . the above, The change state of the display area on the display unit 1 1 is changed after the processing of the image display system of the present embodiment is completed, and the change of the display state can no longer be performed. And continue to maintain the state as shown in Figure 6-2. Secondly, The state in which the image forming apparatus 2 does not directly correspond to the display state determined by the display control unit 4 will be described. According to the image forming apparatus 2, For example, it cannot be generated, Output image data of 3840x2400 resolution, But with the ability to generate, Outputs image data up to 1920x1200 resolution. In the image display system of the embodiment, When the image forming apparatus 2 is connected, The function of the image forming apparatus 2 can also be maximized. Fig. 7 is the present embodiment in which a display aspect exceeding the ability of the image forming apparatus 2 is realized, A processing mode diagram on the image display system of this embodiment will be described. This will be described below with reference to Fig. 7. First of all, The display control unit 4 is based on information input by the input unit 3, etc. And determining the display aspect on the display portion η, And based on the display aspect, each component is controlled. Here, The display control unit 4 is based on the input information of the input unit 3 and the function of the image forming apparatus 2 that is grasped by the input information encoding unit 21. And carry out its control. As illustrated in Figure 7, The image forming apparatus 2 can only generate and output image data of a maximum resolution of 192 〇χ 1 200. However, it is necessary to use the image data of the image forming apparatus 2 as a full picture as a display aspect. That is, the resolution of 3 8 4 0 X 2 4 0 0 is displayed. In this regard, In this embodiment, The display control unit 4 grasps the appropriate control by the input unit 3 and the input information encoding unit 2 1 . in particular, The display control unit 4 is added as in the sixth to the first, The control described in Figure 6-2, For the ratio conversion unit 9, On the occasion of inputting image data output from the image forming apparatus 2, That is, the control of enlarging the magnification of 2 times is performed. therefore, The display control unit 4 generates display information according to the determined display aspect. The image forming apparatus 2 is notified of the display information by the USB control unit 23 provided in the interface portion 5. Here, When there is information about the resolution, As the generated display information, It is decided to have a resolution of 3 840 X 2 4 0 0 for the display aspect. By this kind of notice to display information, The image forming apparatus 2 starts generating image data corresponding to the display information, Output. Here, As illustrated in Figure 7, Information about the resolution contained in the displayed information, It becomes a factor beyond the ability of the image forming apparatus 2. Because of it, The image forming apparatus 2 generates an output which is closest to the resolution of the display information, That is, it is an image data of 1 920 x 1 200 resolution of the upper limit. -25- 1253036 After the image data receiving unit 17 in the image display device Receiving image data output from the image forming apparatus 2, And as in the sixth 6-1, 6 - 2 Figure is the same situation, The ratio conversion unit 9 enlarges the display area, More specifically, It is an enlargement of the resolution of image data. that is, Image data of 1 9 2 0 X 1 2 0 0 resolution output by the image forming apparatus 2, The image conversion data is converted into image data of 3 8 4 Ο X 2 4 0 0 resolution by the scale conversion unit 9. And the image data after the transformation process is applied, Finally, it is displayed on the display unit 1 1. As explained above, The image display system in this embodiment has Borrowing the control unit 4, Based on information input by the input unit 3, etc. Deciding to display the display aspect of the screen on the display unit 11, And the function of notifying the image forming apparatus 2 based on the display information generated by the determined display aspect, If so, Then, the image forming apparatus 2 of the image display device of the embodiment is connected, The output of the image data can be made corresponding to the display state. result, In the image display system of the embodiment, Since the image generating function provided by the image forming apparatus 2 can be effectively utilized, Therefore, the burden of processing can be alleviated. that is, The image forming apparatus 2 of course has an image generation function, In the image display system of this embodiment, It is necessary image processing regarding changes such as display areas, Since it has a configuration that allows the image forming apparatus 2 side to be burdened as much as possible, This reduces the processing load inside the image display device. also, In the image display system of the embodiment, As in the first 6-1, As shown in Figure 6-2, The image data corresponding to the resolution of the display area on the display unit 1 1 is, for example, Show the image to keep its maximum information, Therefore, it is possible to generate image information of the highest grade on the image forming apparatus side 2, The -26- 1253036 image can be displayed in a high grade. In the conventional image display device, there is a change in the display area on the corresponding display on the inside, The composition of the process of reduction and enlargement, The handling of such practices, According to the algorithm, the execution is uniform, so when using the conventional image display device, When the resolution is changed in accordance with the change of the display area of the input image data, The image quality deteriorates. Therefore, there is a problem that it is difficult to display a high-grade image. In this regard, In the image display system of the embodiment, In order to instruct the change of the resolution of the image data generated by the image forming apparatus 2 in accordance with the change of the display area, Therefore, the image forming apparatus 2 to which it is connected can output image data which is most suitable for the display area. result, With the image display system of this embodiment, Can also be used for zooming in the display area, When narrowing down, etc. amplification, The image displayed after shrinking, Not to make the taste low, It can be used for display of high-grade images. also, The image display system of this embodiment, It has the advantage of being able to display images with a high amount of information. that is, When using a conventional image display device, Even when a change in the display area occurs, The image data output by the image forming apparatus 2 is also not changed. Changes are only made to the size of the displayed image. As a result, even if it is intended to know, for example, the details of the image data output by the image forming apparatus on the user side to indicate the enlargement of the display area, Zoom in on the image size alone, Therefore, there is a problem that the details cannot be known. In this image display system of the present embodiment, In the case of, for example, amplifying the display area, According to the enlarged display information corresponding to the display area, Outputted in the image forming apparatus 2, On the side of the image forming apparatus 2, Can be generated, The enlarged high-definition image material corresponding to the display area is output. Because of -27- 1253036, The image display system of this embodiment has a change corresponding to the display area, Can be included in the display area of the change, The advantage of the maximum amount of information possible to display the image. In addition, In the image display system of the embodiment, A ratio conversion unit 9 that performs subsidy processing is provided. Data conversion unit 1 Therefore, it also has advantages. That is, The image display system of this embodiment, The processing accompanying the change of the principle display area is delegated to the image forming apparatus 2, Inside the image display device, it is difficult to handle the image forming apparatus 2 side. Accordingly, The image forming apparatus 2 which cannot correspond to the resolution of the display unit 1 1 as shown in Fig. 7 It can also be connected to the image display system of the embodiment. Therefore, there is an advantage that it can correspond to the diversified image forming apparatus 2. also, The internal ratio conversion unit 9 does have a function as a supplementary processing device. Therefore, the function of the image forming apparatus 2 can be maximized. And it can correspond to a variety of image forming devices. also, An image display system according to this embodiment, The plurality of media faces 5' correspond to a plurality of image forming apparatuses 2 connected, Therefore, the display control unit 4 can individually generate display information corresponding to the image data from the image forming apparatus 2. According to this, The image forming apparatus 2 can be supplied with the most appropriate information. The image display apparatus is not limited to the configuration of the plurality of image forming apparatuses 2, and the individual image forming apparatuses can form individual images. The composition of the device 2, The same actions and functions can be achieved. That is, by connecting to the image display device, Each image forming apparatus 2, It is not necessary to consider the relationship with other image forming apparatuses 2, etc. Based on the display information notified from the image display device, Implement image data generation, Output, etc. -28- 1253036 Therefore, In the image display system of the embodiment, Don't have to use it in order to correspond to multiple displays, A special image forming device for a special video card is required. It is sufficient to use an image forming apparatus which is an optimum structure for a single display. According to this, the image display device of the present embodiment has an advantage that the existing image forming device can be effectively utilized. In addition, Same as the face 5, There is also a color correction portion 1 〇 corresponding to the number of image forming apparatuses 2, The advantage of being provided in plural in the image display device. First, the color correction unit 1 is disposed inside the image display device. The exact color correction can be performed. that is, The actual color development state in the display unit 1 1 is based on the physical structure of the display unit 1 1 . It is inevitable that there will be some slight difference in growth. Therefore, when color correction is performed on the side of the image forming apparatus 2, There is a fear that the problem of the desired color display cannot be achieved. to this end, An image display system according to this embodiment, The color correction unit 10 is provided in the image display device. Therefore, color correction can be performed in accordance with the characteristics of the display unit 1 1. Further, there is also an advantage that the number of color correction portions 1 仅 is set only to correspond to the number of image formation _ g 2 . E.g, If the plurality of image forming apparatuses 2 connected are different in nature, On the display of each image, You can perform different color corrections. In this situation, When the image data output from the plurality of image forming apparatuses 2 is simultaneously displayed on the display unit, Of course, different color corrections must be applied to the respective image data. On the other hand, in the image display system of the present embodiment, the color correction portion 1 provided in the image display device 对 corresponds to the number of the image forming devices 2, Therefore, color correction processing for different image data can be performed. -29- 1253036 (5) Brief Description of Drawings FIG. 1 is a block diagram showing the overall configuration of an embodiment of an image display system of the present invention. Fig. 2 is a block diagram showing the constitution of a face portion constituting an image display device. Figure 3 shows the information input without input via the input section. A flowchart of the operation of the display control unit. Figure 4 is a diagram showing information about the display priority level input via the input unit. The flow chart of the operation of the control unit is displayed. ‘ Figure 5 shows the information about the display area input via the input section. The flow chart of the operation of the control unit is displayed. Fig. 6-1 is a diagram for explaining the relationship between the display information and the image data generated in the image forming apparatus. The % 6-2 figure is a pattern diagram for explaining the relationship between the display information and the image data generated in the image forming apparatus. Fig. 7 is a schematic diagram showing the relationship between the display information and the image data generated in the image forming apparatus 2, which cannot be directly used in the image corresponding to the determined display mode. Description of main symbols ♦ 1 Image display device 2 Image forming device 3 Input unit 4 Display control unit 5 Interfacing unit 6 Frame memory unit 7 Selector -30- D Μ A reading unit ratio conversion unit color correction unit Display selector CRTC 3 display information storage unit image data generation unit image generation control unit image data reception unit storage unit data conversion unit frame write unit input information coding unit storage unit u SB control unit image forming device -31-