4612 1 8 I五、發明說明（l) 指一種可 影像顯示 本發明係提供一種數位忒勒 =像素時脈頻率判別影像畫面、析： 顯 示 裝 置 為 -— 1傳 來 的 畫 面 信 號 轉 |使 1 用 者 閱 讀 及 使 用 裝 置 的 顯 示 幕 已 逐 位 式 陰 極 射 線 顯 示 di 1 L s P 1 a y panel)0 能 根 據 電 腦 所 傳 來 顯 示 影 像 畫 面 的 水 像 晝 面 以 適 當 的 大 善 > 顯 示 裝 置 便 畫 面 的 解 析 度 7 此 ) 或 放 大 比 例 錯 誤 式 來 調 整 顯 示 裝 置 因 此 如 何 將 電 腦 確 判 別 影 像 畫 面 之 示 裴 置 項 重 要 的 常用的電腦週邊裝 化為複數個連續顯 電腦中的資訊。隨 漸由類比式陰極射 窃或疋液晶顯示面 不論是哪一種顯示 之畫面信號，正岑 平及垂直解析度， 小顯示於顯示幕上 無法正確的判別出 時影像畫面就可能 等問題，而必須仰 上影像畫面的大小 傳輸來的畫面信號 水平及垂直解析度 課題。 置’用來將一電腦所 示的影像畫面，以供 著科技的進步，顯示 線顯示器’進步到數 板（1 iquid crystal 幕’顯示裝置都必須 的判別出該電腦所欲 並依據該解析度將影 。如.果判別方法不夠 該電.腦所欲顯示影像 產生不穩定（Jitter 賴使用者以目視的方 ，使用上非常不便》 做適當的處理，以正 ，已成為境,今研發顯 習知顯示裝置係經由一條由數條信號線所組成的電纜 來接收由電腦所傳來的畫面信號。該畫面信號中包含有 充像k號（Video Signal)、垂直同步信號（Vertical4612 1 8 I. Description of the invention (l) Refers to an image display. The present invention provides a digital screen = pixel clock frequency to discriminate the image screen and analysis: the display device is-1 the picture signal conversion | make 1 The display screen for the user to read and use the device has a bit-wise cathode ray display di 1 L s P 1 ay panel) 0 The water image can be displayed according to the computer image. The resolution of this 7) or the magnification scale is wrong to adjust the display device. Therefore, how to use the computer to determine the display of the image screen is important and commonly used computer peripheral equipment into a plurality of continuous display computer information. With the analog cathode stealing or the liquid crystal display surface, no matter what kind of display signal is displayed, the positive display and vertical resolution, small display on the display screen can not correctly identify the image picture when the problem may be, etc., and The problem of horizontal and vertical resolution of the picture signal transmitted from the size of the picture must be looked up. "Setting" is used to display the image picture displayed by a computer for the advancement of technology. The display line display "advanced to the number plate (1 iquid crystal screen) display device must determine what the computer wants and according to the resolution Will. If the method of judging the fruit is not enough, the image displayed by the brain is unstable (Jitter depends on the user's eyes, it is very inconvenient to use.) Do proper processing to correct it, it has become a realm. The conventional display device receives a picture signal from a computer via a cable composed of several signal lines. The picture signal includes a video signal (K) and a vertical synchronization signal (Vertical
第4頁 461218 五、發明說明（2)Page 4 461218 V. Description of the invention (2)
Synchronous Signal; V's)、以及水平同步 ^ 號 (Η 〇 r i ζ ο η 1; a i S y n c h r ο η 〇 u s S i g n a 1 ; H s )等。顯示裝置 丨在接收到這些信號並加以處理後，便會於其顯示幕上顯示 出相對應之影像畫面。 請參閱圖一。圖一為習知顯示裝置所顯示之影像畫面 12的示意圖。習知顯示裝置會將電腦所傳來之畫面信號顯 示為複數個影像畫面12，而這些影像畫面12會依序顯示於 顯示裝置上以形成一動態畫面以供使用者觀看。每一個影 像晝面12包含有複數條影像掃瞄線ΐ4(即圖一中所示之橫 列），而每一影像掃瞄線1 4包含有複數個影像像素丨6 (即 圖一中所示之方格）。影像畫面12可以為不同之解 |例如若解析度為80 0x60 0,則表示該影像畫面丨 ;向具有6 0 0條影像掃瞄線i 4，而每條影 8 0 0個影像像素16β 1豕埽岛線14上具有 由電腦所傳來畫面信號中的垂直同 影像畫面之畫面顯示頻率，而水平同步J 制 每-影像畫面12中影像掃瞄、線14之顯示；號：：！控制 每當顯示裝置接收到一個垂直同步信號 J也、就疋說， 示-個新的影像畫面⑴而每當Πί置；始顧 同步信號’其會自下一行開始顯示一條：J收到-個水平 14。因此，若電腦所欲顯示影像晝面的；線Synchronous Signal; V's), and horizontal synchronization ^ number (Η 〇 r i ζ ο η 1; a i S yn n c h r ο η 〇 s S i g n a 1; H s), etc. Display device 丨 After receiving and processing these signals, it will display the corresponding image picture on its display screen. See Figure 1. FIG. 1 is a schematic diagram of an image frame 12 displayed on a conventional display device. The conventional display device displays the picture signals sent from the computer as a plurality of image pictures 12, and these image pictures 12 are sequentially displayed on the display device to form a dynamic picture for the user to watch. Each image day surface 12 includes a plurality of image scanning lines ΐ4 (ie, the rows shown in FIG. 1), and each image scanning line 14 includes a plurality of image pixels 丨 6 (as shown in FIG. 1). Show the grid). The image frame 12 can have different solutions. For example, if the resolution is 80 0x60 0, it means that the image frame; it has 600 image scanning lines i 4, and each image has 8 0 image pixels 16 β 1 The Toshima line 14 has the screen display frequency of the vertical and video frames in the picture signal sent by the computer, and the horizontal synchronization J system per-image frame 12 image scan, line 14 display; No. ::! Control Whenever the display device receives a vertical synchronization signal J, let ’s say, a new video image is displayed, and whenever Π is set; look at the synchronization signal 'it will display one from the next line: J received- Levels 14. Therefore, if the computer wants to display the image of the day and time; line
五 '發明說明（3) ——....... 裝置的水平同步信號頻率應約為37.9kHz。 丨 請參閱圖二。圖二為習知顯示裝置用以判斷影像畫面 $度之解析度對照表2 0示意圖。習知的顯示 像畫面解析度的方法’*建立一水平與垂直同步 之組合以及與該組合相對應之影像畫面解析度^ 丨照表20,以判別電腦傳過來之畫面信號所欲顯示 面解析度。當顯示裝置接收畫面信號時，顯示裝置會叶算 該畫面信號所包含之水平同步信號以及垂直同步信號的頻 率，然後依據計算結果査表以得知影像畫面解析度。例如 若接收到之垂直同步信號與水平同步信號的頻率分別 851^與37.9kHz，則可經由查表得知影像畫面的解析度應 為640x400»同樣的，若接收到之垂直同步信號與水平同 步信號的頻率分別為60Hz與48· 4kHz，則可經由查表即可 得知影像畫面的解析度應為1024x768。 ~ 然而，習知的數位式影像顯示裝置並無法完全判別出 電腦所欲顯示的影像畫面解析度。例如，若電腦所欲顯示 的影像晝面解析度為640x400，垂直同步信號頻平為 85 Hz，從電腦傳送至顯示裝置的水平同步信號頻率為 37.9 kHz。但若電腦所欲顯示的影像晝面解析度為 ^ 72 0x40 0 ’從電腦傳送至顯示裝置的垂直同步信號頻率為 85Hz，水平同步信號頻率也同樣為37. 9kHz»如此一來， 顯示裝置便無法單憑水平及垂直同步信號的頻率對照解才斤 五、發明說明（4) _ 度對照表2 0來正確的分辨電腦所欲顯示的影像畫面解析度 是720x40 0還是640x4 00 »遇到此種情形時，習知的顯示^ 置通常是以'’猜測”的方式來解決’如此自然易產生影像^ 面不穩定或放大比例錯誤等問題。 ~ 本發明的主要目的在於提供一種可依據像素時脈 :以判別影像畫面解析度之數位式影像顯示裝置，兑: 地判別電腦所欲顯示的影像畫面解析度，以期能&麥 當的大小顯示於顯示幕上’免去使用者需手“整 的麻煩。 請 收數位 5 0係經 示電腦 含有複 5 6，複 脈信號 線傳至 6 0係用 置1 2收 數位影 上。 參閱圖三。圈三 畫面信號52的示 由一電纜線（未 4 0所傳來 數個數位 數個數位 (Pixel 數位式影 來控制影 的一數 影像信 水平同 Clock 像顯示 像像素 到一個數位像素 像信號54而將 為本發明數位式 意圖。本發明數 顯示）電連接至 位畫面信號5 2。 號54 ’複數個數 步信號58，以及 Signal) 60，其 裝置50。複數個 1 6之顯示頻率， 時脈信號6 0，顯 個影像像素1 6顯 影像顯示裝 仇式影像顯 一.電腦40， 數位畫面信 位垂直同步 複數個數位 分別由不同 數位像素身 亦即每一次 示裝置1 2即 示於影像掃 置5 0接 示裝置 用來顯 號52包 信號 像素時 之信號 脈信號 顯示裳 會依據 瞄線Π 五、發明說明（5) 請參閱圖四。圖 之功能方塊圖。本發 示幕68用來顯示 ，傳來之數位畫： ^位式影像顯示裝置 工二，定之計算時間 送至控制電 :异數位水平同步信號 丨並將計算結果傳送至 |示面板或一數位陰極 | I 如圖四所示，控 卜解析度對照表80» I信號56、水平同步信 |合，以及與該組合相 控制電路7 0即係依據 同步信號5 6與數位水 電路72所傳送來之計 別影像晝面1 2相對應 影像顯示裝置5 〇另包 電路7 0所判別影像畫 調整影像畫面12之大 6 8上0 四為圖三所示 明數位式影像 畫面1 2，一控 數位式影像顯示裝置5 〇 顯示裝置50包含有一顯 制電路70用來接收電腦 信號5 2並依據數位畫面信號5 2以控制 50之操作，一第一計頻電路72用來計 6 0之數量並將計 頻電路7 6用來計 信號5 6之頻率， 内數位像素時 路7 0，以及一 5 8以及數位垂 控制電路7 0。 射線顯示器。 脈信號 第二計 直同步 顯不幕 6 8可為一液晶顯 制電路 對照表 號5 8以 對應之 第二計 平同步 算結果 之垂直 含有一 面1 2之 小，使 70包 8 0内 及像 垂直 頻電 信號 來對 解析 比例 垂直 其以 含有一 存有各 素時脈 解析度 路7 6計 5 8的頻 照解析 度及水 調整器 解析度 適當的 記憶 種預 信.號 及水 算得 率， 度對 平解 74， 及水 大小 體7 8用來儲存 定之垂直同步 6 0頻率的組 平解析度。而 知之數位垂直 以及第一計頻 照表8 0 ’以判 析度^。數位式 其可依據控制 平解析度，以 顯示於顯示幕Five 'Explanation of the invention (3) ——...... The horizontal synchronization signal frequency of the device should be about 37.9kHz.丨 Please refer to Figure 2. FIG. 2 is a schematic diagram of a resolution comparison table 20 used by a conventional display device to determine the degree of an image frame. The conventional method for displaying the image screen resolution '* Establish a combination of horizontal and vertical synchronization and the image screen resolution corresponding to the combination ^ 丨 According to Table 20, to determine the desired display surface resolution of the screen signal transmitted from the computer degree. When the display device receives the picture signal, the display device calculates the frequency of the horizontal synchronization signal and the vertical synchronization signal contained in the picture signal, and then looks up the table according to the calculation result to obtain the image picture resolution. For example, if the frequency of the received vertical synchronization signal and the frequency of the horizontal synchronization signal are 851 ^ and 37.9kHz respectively, it can be known from the look-up table that the resolution of the image frame should be 640x400 »Same. The frequencies of the signals are 60Hz and 48 · 4kHz. You can find out that the resolution of the image screen should be 1024x768 by looking up the table. ~ However, the conventional digital image display device cannot completely determine the resolution of the image screen that the computer wants to display. For example, if the day-to-day resolution of the image the computer wants to display is 640x400, the vertical sync signal frequency is 85 Hz, and the horizontal sync signal frequency transmitted from the computer to the display device is 37.9 kHz. However, if the day-to-day resolution of the image to be displayed by the computer is ^ 72 0x40 0 'The frequency of the vertical synchronization signal transmitted from the computer to the display device is 85 Hz, and the frequency of the horizontal synchronization signal is also 37.9 kHz. As a result, the display device will The frequency comparison of horizontal and vertical synchronization signals alone cannot be used. V. Explanation of the invention (4) _ Degree comparison table 2 0 to correctly distinguish the image resolution of the image the computer wants to display is 720x40 0 or 640x4 00 »encountered this In such cases, the conventional display device is usually a “guessing” method to solve the problems of “so naturally easy to produce images”, such as unstable surface or incorrect magnification. ~ The main purpose of the present invention is to provide a pixel Clock: Digital image display device to determine the resolution of the image screen, to: Determine the resolution of the image screen that the computer wants to display, in order to display the size of the & McDonald's on the display screen. "The whole trouble. Please receive the digital 50 series via the computer. It contains the digital 5-6, and the complex signal line is transmitted to the 60 series for use. 1 2 The digital image is received. See Figure III. The signal of the circle three picture 52 is displayed by a cable (the number of digital digits sent by the 40 digits (Pixel digital image to control the digital image level of the digital image with the Clock image display pixel to a digital pixel image signal). 54 will be the digital intent of the present invention. The present invention digital display) is electrically connected to the bit picture signal 5 2. No. 54 'plural number of step signals 58, and Signal) 60, its device 50. Multiple display frequency of 16, clock signal of 60, display of image pixels, 16 display of image display, and display of vengeance. Computer 40, digital picture signal, vertical synchronization of multiple digits, respectively, by different digital pixels Each time the display device 12 is shown in the image scanning 50, the signal pulse signal display when the display device is used to display the number of 52 packets of signal pixels will be based on the aiming line. V. Description of the invention (5) Please refer to Figure 4. Figure Functional block diagram. The display screen 68 is used to display and transmit the digital pictures: ^ bit-type image display device, the second calculation time is sent to the control power: different digital horizontal synchronization signal 丨 and the calculation result is sent to the display panel or a digital Cathode | I As shown in Figure 4, the control resolution comparison table 80 »I signal 56, horizontal synchronization signal, and the combined phase control circuit 70 is transmitted according to the synchronization signal 56 and digital water circuit 72. The image of the coming day corresponds to the image display device 5 2 0 The additional circuit 7 0 determines the image painting adjustment image frame 12 of the large 6 8 on 0 The fourth is the digital image image shown in Figure 3 The digital image display device 50 is controlled. The display device 50 includes a display circuit 70 for receiving computer signals 5 2 and controls the operation of 50 according to the digital picture signal 52. A first frequency counting circuit 72 is used for counting 60. The frequency counting circuit 76 is used to count the frequency of the signal 56, the internal digital pixel time is 70, and the number 58 and the digital vertical control circuit 70 are used. Ray monitor. The pulse signal of the second meter straight synchronization display 6 8 can be a liquid crystal display circuit comparison table number 5 8 with the corresponding second meter flat synchronization result of the vertical containing a side of 1 2 as small as 70 packets 80 0 and Like the vertical frequency electrical signal, the resolution ratio is vertical. It contains a memory type of pre-signal that contains a frequency resolution of 7 6 counts 5 8 and a resolution of the water regulator. The resolution, degree-to-level solution 74, and water size body 78 are used to store the set-level resolution of a fixed vertical synchronization 60 frequency. The known digital vertical and first counted frequencies are shown in Table 8 'to determine the resolution ^. Digital It can be displayed on the screen according to the horizontal resolution of the control
第8頁 46 12 1 8 五、發明說明 請參 方塊圖。 |數位像素 來產生一 一計數器 6 0之數量 來之計算 一栽入信 (6) 閱圈五。圖五為圖四 第一計頻電路7 2是用 號6 0之數量， 脈波信號以決 計算該預定計 時脈信 週期性 8 6用來 ’以及 結果。 號，當 入其内 路70， 一計頻 一預定 |算結果載 至控制電 之用。第 信號延遲 到該清除信號時 位像素時脈信號 號延遲一預定時 位像素時脈信號 清除。 一暫存器88用 該週期性脈波 暫存器88接收 暫存。暫存器 以供控制電路 電路72另包含 時段以產生一 ，會清除其目 6 0之數量。由 段所產生，故 6 0之數量會在 所示第 來計算 其包含 定該預 算時間 來暫時 信號係 到該載 88内之 7 0作判 有一延 清除信 前之計 於該清 可保證 暫存器 一計頻電路 該預定之計 有一脈波產 定計算時間 内數位像素 存放計數器 用來當作暫 入信號時， 該計算結果 別影像畫面 遲器94用來 號。當計數 數狀.態並重 除信.號係由 計數器8 6所 8 8將其載入 7 2之功能 算時間内 生器82用 之長短， 時脈信號 8 6所傳送 存器8 8之 會將該計 會被傳送 12解析度 將該載入 器8 6接收 新計算數 該載入信 計算之數 後才會被 請參閱圖六。圖六為圖四所示之解被唐對昭·矣8音 圖。解析度對照表80存有垂直同步信號5δ、水^同步I號 5 8以及像素時脈信號6 〇頻率的組合，以及這些組合與所相 對應的影像晝面解析度。由於數位水平同步信號係用來 控制每一影像畫面62中影像掃瞄線64之顯示頻率，而數位 像素時脈彳§號6 0係用來控制每一影像掃瞄線6 4之像素顯示Page 8 46 12 1 8 V. Description of the invention Please refer to the block diagram. | Digital Pixels to generate a number of counters 6 0 to calculate the number of letters (6) read five. Figure 5 is Figure 4. The first frequency counting circuit 72 uses the number 60, and the pulse wave signal is used to calculate the predetermined timing pulse signal periodicity 86 and the result. No., when it enters its internal route 70, one counts one frequency and one reservation | The calculation result is loaded to the control power. The first signal is delayed until the clear signal is cleared. A register 88 uses the periodic pulse register 88 to receive a temporary register. Register for the control circuit. The circuit 72 additionally contains a period to generate one, which will clear its number 60. It is generated by the paragraph, so the number of 60 will be calculated as shown in the figure. It contains the budget time to temporarily signal to 70 in the load 88. A judgement will be made before the postponement of a clearing letter. A frequency counting circuit of the register has a digital pixel storage counter within a predetermined pulse generation calculation time for use as a temporary input signal, and the calculation result is not used for the image frame delay device 94. When counting the number of states, the state and the division signal. The number is the length of the generator 82 used by the counter 8 6 8 8 load 7 2 function time, the clock signal 8 6 is transferred to the register 8 8 The meter will be transmitted with 12 resolutions. The loader 8 6 will receive new calculations and the calculations of the loading letter will be referred to Figure 6. Figure 6 is the 8-tone picture of Tang Duo Zhao 矣 in the solution shown in Figure 4. The resolution comparison table 80 stores a combination of the vertical synchronization signal 5δ, the water synchronization number 5 8 and the pixel clock signal 60 frequency, and the day-to-day resolution of the image corresponding to these combinations. Because the digital horizontal synchronization signal is used to control the display frequency of the image scanning line 64 in each image frame 62, and the digital pixel clock 彳 § 60 is used to control the pixel display of each image scanning line 64.
第9頁 461218 五'發明說明（7) ------------------------ 頻率，因此可由數位水平同步信號58以及數位像素時脈 號60的頻率來分辨不同的水平解析度。例如，若電腦4〇^ 欲顯示的影像畫面解析度為64〇χ4〇〇，以垂直同步信號頻 率85Hz為例，則從電腦4〇傳送至顯示裝置的水平同步信號 頻率約為37· 9kHz ’而數位像素時脈信號6〇的頻率則約為 31.5 MHz。但若電腦所欲顯示的影像畫面解析度為 720x400’則傳送過來之水平同步信號的頻率約同樣為37. 丨9kHz，但數位像素時脈信號6〇的頻率就應約為355 如此一來’本發明數位式影像顯示裝置5〇便可依據數位像 素時脈信號6 0的頻率，對照解析度對照表8 〇來正確的分辨 出電腦40所欲顯示的影像晝面解析度是6 4 0x4 〇〇還是 720x400’也自然能將影像畫面12以適當的大小顯示於顯 示幕6 8上。 ! 請參閱圖七。圖七為本發明數位畫面信號處理方法 1 0 0的程序圖。本發明數位晝面信號處理方法丨〇 〇係使用於 數位式影像顯示裝置5 0内用來處理電腦40所傳來之數位畫 面信號5 2，以期能正確地判別電腦4 〇所欲顯示影像畫面i 2 之解析度。數位畫面信號處理方法1〇〇包含有下列步驟： 步驟102:建立解析度對照表80，其内存有各種預定 之數位垂直同步信號5 6、數位水平同步信號5 8以及數位像 素時脈信號60頻率的組合，以及與該組合相對應之垂直解 析度及水平解析度； 步驟104:接收電腦4 0所傳來之數位畫面信號52; 461218 五、發明說明（8) …一一- 步驟1 06 :於一預定之計算時間内計算其中之數位像 素時脈信號6 0之數量，以產生一計算結果，並計算數位垂 i直同步信號56，以及數位水平同步信號58之頻率； ； 步驟1〇8:依據數位垂直同步信號56，數位水平同步 信號5 8的頻率，以及數位像素時脈信號6 〇數量之計算結^ 果’來對照解析度對照表8 0，以判別影像畫面i 2相對應之 垂直解析度及水平解析度》 步驟11 0 :依據所判別之垂直解析度及水平解析度， 將影像晝面1 2顯示於數位式影像顯示裝置5〇上並調整 畫面1 2於其上之大小。 v象 相較於習知的顯示裝置，本發明顯示裝置50除了根據 位垂直同步信號56以及數位水平同步信號58的頻率，還 丨f外根據了數位像素時脈信號6 〇來判別電腦4〇所欲顯示的 |影像畫面解析度，因此可以正確地區分出不同的水平解析 度。如此，便可避免因解析度的錯誤判定而導致影像畫面 1 2產生不穩定或放大比例錯誤的問題，使顯示裝置能正確 地顯示電腦4 0所欲顯示的影像畫面 以上所述僅為本發明之較佳實施例，凡依本發明申請 f利範圍所做之均等變化與修飾，皆應屬本發明專利之涵 :蓋範圍。 f"8 _________________『461218 ________________________________________________________ 圖式簡單說明 圖示之簡單說明 ‘ i • ίPage 9 461218 Five 'invention description (7) ------------------------ frequency, so can be digital horizontal synchronization signal 58 and digital pixel clock number 60 frequencies to distinguish between different horizontal resolutions. For example, if the resolution of a video image to be displayed by a computer 4 ^ is 64 × 4 × 00, and a vertical synchronization signal frequency of 85 Hz is taken as an example, the frequency of the horizontal synchronization signal transmitted from the computer 4 to the display device is approximately 37 · 9 kHz ′ The frequency of the digital pixel clock signal 60 is approximately 31.5 MHz. However, if the resolution of the image displayed by the computer is 720x400 ', the frequency of the horizontal synchronization signal transmitted is about 37. 丨 9kHz, but the frequency of the digital pixel clock signal 60 should be about 355. According to the digital image display device 50 of the present invention, according to the frequency of the digital pixel clock signal 60, the resolution comparison table 8 can be accurately distinguished to determine that the day-to-day resolution of the image to be displayed by the computer 40 is 64x4. 〇 Still 720x400 'can naturally display the video screen 12 on the display screen 6 8 at an appropriate size. ! See Figure 7. FIG. 7 is a flowchart of a digital picture signal processing method 100 according to the present invention. The digital daytime signal processing method of the present invention is used in the digital image display device 50 to process the digital picture signal 52 transmitted from the computer 40, so as to correctly determine the computer 4 to display the image picture. Resolution of i 2. The digital picture signal processing method 100 includes the following steps: Step 102: Establish a resolution comparison table 80, which stores various predetermined digital vertical synchronization signals 5 6, digital horizontal synchronization signals 58, and digital pixel clock signals 60 frequencies. Combination, and the vertical and horizontal resolutions corresponding to the combination; Step 104: Receive the digital picture signal 52 from the computer 40; 461218 V. Description of the invention (8)… One by one-Step 1 06: Calculate the number of digital pixel clock signals 60 in a predetermined calculation time to generate a calculation result, and calculate the frequencies of the digital vertical synchronization signal 56 and the digital horizontal synchronization signal 58; Step 10 : According to the calculation result of the digital vertical synchronization signal 56, the digital horizontal synchronization signal 58, and the number of digital pixel clock signals 60, the results are compared with the resolution comparison table 80 to determine whether the image frame i 2 corresponds to Vertical resolution and horizontal resolution "Step 11 0: Display the daytime image 12 of the image on the digital image display device 5 according to the determined vertical resolution and horizontal resolution. And adjusting the size of the screen 12 thereon. Compared with the conventional display device, the display device 50 of the present invention judges the computer 4 based on the digital pixel clock signal 6 0 in addition to the frequency of the bit vertical synchronization signal 56 and the digital horizontal synchronization signal 58. The desired | image screen resolution, so you can distinguish different horizontal resolutions correctly. In this way, the problem of instability or incorrect magnification of the image screen 12 caused by the wrong determination of the resolution can be avoided, so that the display device can correctly display the image screen to be displayed by the computer 40. The above is only the present invention In a preferred embodiment, any equivalent changes and modifications made in accordance with the scope of the present application shall fall within the scope of the patent of the present invention: cover range. f " 8 _________________ 『461218 ________________________________________________________ Simple illustration of the diagram Simple illustration of the diagram‘ i • ί
I 圖一為習知顯示裝置所顯示之影像畫面的示意圖。 圖二為習知顯示裝置用以判斷影像晝面解析度之解析 |度對照表示意圖。 ! 圖三為本發明數位式影像顯示裝置接收數位晝面信號 ！ 丨的示意圖。I Figure 1 is a schematic diagram of an image screen displayed by a conventional display device. FIG. 2 is a schematic diagram of a resolution comparison table used by a conventional display device to determine the day-to-day resolution of an image. Figure 3 shows the digital image display device of the present invention receiving digital daytime signals!丨 schematic diagram.
II
； 圖四為圖三所示數位式影像顯示裝置之功能方塊圖。 I 圖五為圖四所示第一計頻電路之功能方塊圖。 | 圖六為圖四所示之解析度對照表示意圖。 | 圖七為本發明數位畫面信號處理方法的程序圖a j ! 圖示之符號說明 . 50 顯示裝置 68 顯示幕 70 控制電路 72 第一計頻電路 74 比例調整器 76 第二計頻電路 78 記憶體 80 解析度對照表; Figure 4 is a functional block diagram of the digital image display device shown in Figure 3. I Figure 5 is a functional block diagram of the first frequency counting circuit shown in Figure 4. Figure 6 is a schematic diagram of the resolution comparison table shown in Figure 4. Figure 7 is a flowchart of a digital picture signal processing method according to the present invention aj! The symbols are illustrated. 50 display device 68 display screen 70 control circuit 72 first frequency counting circuit 74 scaler 76 second frequency counting circuit 78 memory 80 resolution comparison table
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