TWI733402B - Display and its control method - Google Patents
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Abstract
一種顯示器，包含一傳輸埠、一面板單元及一控制單元。當控制單元於一預備設定狀態經由傳輸埠接收到一具有多個分別對應於多個時序參數的參數設定值的視訊訊號，控制單元依序進入一設定狀態及一顯示狀態。當控制單元於顯示狀態判斷出所接收到的視訊訊號中斷，控制單元由顯示狀態進入一延遲重設狀態，於延遲重設狀態控制單元判斷於一預定延遲時間內是否再次接收到具有與中斷前相同的參數設定值的視訊訊號。當控制單元於延遲重設狀態判斷出於預定延遲時間內再次接收到具有與中斷前相同的參數設定值的視訊訊號，控制單元回復執行於顯示狀態。A display includes a transmission port, a panel unit and a control unit. When the control unit receives a video signal with a plurality of parameter setting values corresponding to a plurality of timing parameters through the transmission port in a preliminary setting state, the control unit sequentially enters a setting state and a display state. When the control unit determines that the received video signal is interrupted in the display state, the control unit enters a delayed reset state from the display state. In the delayed reset state, the control unit determines whether the received video signal is the same as before the interruption within a predetermined delay time. The video signal of the parameter setting value. When the control unit determines that the video signal with the same parameter setting value as before the interruption is received again within the predetermined delay time in the delay reset state, the control unit resumes execution in the display state.
Description
本發明是有關於一種顯示器，特別是指一種具有傳輸埠而能經其接收要顯示的視訊訊號的顯示器。本發明還有關於一種顯示器的控制方法。The present invention relates to a display, in particular to a display having a transmission port and capable of receiving a video signal to be displayed through the display. The invention also relates to a display control method.
當一個使用者在Windows作業系統下以全螢幕執行一個應用程式（例如遊戲程式）時， Windows作業系統可讓使用者透過按壓鍵盤的Alt加Tab按鍵將顯示畫面由應用程式的畫面切換回Windows作業系統的畫面。When a user runs an application (such as a game program) in full screen under the Windows operating system, the Windows operating system allows the user to switch the display screen from the application screen back to the Windows operation by pressing the Alt and Tab keys on the keyboard The picture of the system.
當電腦主機接收到切換畫面的指令時，電腦主機會將其輸出至顯示器的視訊訊號由用於顯示應用程式的畫面的視訊訊號變更為用於顯示Windows作業系統的畫面的視訊訊號。When the host computer receives an instruction to switch the screen, the host computer changes the video signal output to the display from the video signal used to display the screen of the application to the video signal used to display the screen of the Windows operating system.
現有的顯示器在顯示狀態下若偵測到視訊訊號中斷，就會立刻進入預備設定狀態，在預備設定狀態下若接收到視訊訊號就會進入設定狀態以套用視訊訊號的時序參數設定值，接著進入顯示狀態顯示視訊訊號。If the existing monitor detects the interruption of the video signal in the display state, it will immediately enter the preparation setting state. In the preparation setting state, if the video signal is received, it will enter the setting state to apply the timing parameter setting value of the video signal, and then enter The display status shows the video signal.
一般來說，在設定狀態完成套用時序參數設定值大約耗時3秒鐘。因此，當電腦主機接收到切換畫面的指令而切換其輸出至顯示器的視訊訊號時，顯示器大約需要耗時3秒鐘才能正常顯示切換過後的視訊訊號（這3秒鐘顯示器處於黑屏狀態）。Generally speaking, it takes about 3 seconds to complete the application of the timing parameter setting value in the setting state. Therefore, when the host computer receives the instruction to switch the screen and switches the video signal output to the display, it takes about 3 seconds for the display to display the switched video signal normally (the display is in a black screen state for these 3 seconds).
本案發明人遂思及，有時候Windows作業系統的時序參數設定值與應用程式的時序參數設定值是相同的，顯示器實際上不需要重新套用時序參數設定值就能正常顯示切換後的視訊訊號，因此，如何發展出一種新的顯示器，能在切換前與切換後的視訊訊號的時序參數設定值相同的情況下，提早開始顯示切換後的視訊訊號的時間（讓黑屏的時間縮短），是本發明進一步要探討的主題。The inventor of the present case then thought that sometimes the timing parameter setting value of the Windows operating system is the same as the timing parameter setting value of the application program, and the monitor actually does not need to reapply the timing parameter setting value to display the switched video signal normally. Therefore, how to develop a new display that can start to display the switched video signal earlier (to shorten the black screen time) when the timing parameter settings of the video signal before and after the switch are the same. Invention topics to be explored further.
因此，本發明的目的，即在提供一種顯示器。Therefore, the purpose of the present invention is to provide a display.
本發明的另一目的，在於提供一種顯示器的控制方法。Another object of the present invention is to provide a method for controlling a display.
於是，本發明顯示器，包含一傳輸埠、一面板單元及一控制單元。該控制單元電連接於該傳輸埠及該面板單元。Therefore, the display of the present invention includes a transmission port, a panel unit and a control unit. The control unit is electrically connected to the transmission port and the panel unit.
當該控制單元於一預備設定狀態經由該傳輸埠接收到一具有多個分別對應於多個時序參數的參數設定值的視訊訊號，該控制單元由該預備設定狀態依序進入一設定狀態及一顯示狀態，於該設定狀態該控制單元套用該等參數設定值，於該顯示狀態該控制單元根據該等參數設定值控制該面板單元顯示該視訊訊號。When the control unit receives a video signal with a plurality of parameter setting values corresponding to a plurality of timing parameters through the transmission port in a preparation setting state, the control unit sequentially enters a setting state and a setting state from the preparation setting state. In the display state, the control unit applies the parameter setting values in the setting state, and in the display state the control unit controls the panel unit to display the video signal according to the parameter setting values.
當該控制單元於該顯示狀態判斷出所接收到的該視訊訊號中斷，該控制單元由該顯示狀態進入一延遲重設狀態，於該延遲重設狀態該控制單元判斷於一預定延遲時間內是否再次接收到具有與中斷前相同的該等參數設定值的該視訊訊號。When the control unit determines that the received video signal is interrupted in the display state, the control unit enters a delayed reset state from the display state, and in the delayed reset state, the control unit determines whether it is again within a predetermined delay time Receive the video signal with the same parameter settings as before the interruption.
當該控制單元於該延遲重設狀態判斷出於該預定延遲時間內再次接收到具有與中斷前相同的該等參數設定值的該視訊訊號，該控制單元回復執行於該顯示狀態而繼續根據該等參數設定值控制該面板單元顯示該視訊訊號。When the control unit determines in the delay reset state that the video signal with the same parameter settings as before the interruption is received again within the predetermined delay time, the control unit resumes execution in the display state and continues to perform according to the The parameter setting value controls the panel unit to display the video signal.
在一些實施態樣中，當該控制單元於該延遲重設狀態判斷出於該預定延遲時間內未再次接收到具有與中斷前相同的該等參數設定值的該視訊訊號，該控制單元由該延遲重設狀態進入該預備設定狀態。In some implementations, when the control unit determines in the delay reset state that the video signal with the same parameter settings as before the interruption is not received again within the predetermined delay time, the control unit is controlled by the The delayed reset state enters the preliminary setting state.
本發明顯示器的控制方法，藉由一顯示器實施，該顯示器包含一傳輸埠、一面板單元及一控制單元，該方法包含：當該控制單元於一預備設定狀態經由該傳輸埠接收到一具有多個分別對應於多個時序參數的參數設定值的視訊訊號，該控制單元由該預備設定狀態依序進入一設定狀態及一顯示狀態，於該設定狀態該控制單元套用該等參數設定值，於該顯示狀態該控制單元根據該等參數設定值控制該面板單元顯示該視訊訊號；當該控制單元於該顯示狀態判斷出所接收到的該視訊訊號中斷，該控制單元由該顯示狀態進入一延遲重設狀態，於該延遲重設狀態該控制單元判斷於一預定延遲時間內是否再次接收到具有與中斷前相同的該等參數設定值的該視訊訊號；及當該控制單元於該延遲重設狀態判斷出於該預定延遲時間內再次接收到具有與中斷前相同的該等參數設定值的該視訊訊號，該控制單元回復執行於該顯示狀態而繼續根據該等參數設定值控制該面板單元顯示該視訊訊號。The control method of the display of the present invention is implemented by a display that includes a transmission port, a panel unit, and a control unit. The method includes: when the control unit is in a pre-setting state, it receives a signal with multiple A video signal corresponding to the parameter setting values of a plurality of timing parameters, the control unit enters a setting state and a display state sequentially from the preliminary setting state, and the control unit applies the parameter setting values in the setting state. In the display state, the control unit controls the panel unit to display the video signal according to the parameter settings; when the control unit determines that the received video signal is interrupted in the display state, the control unit enters a delay reset from the display state In the delayed reset state, the control unit determines whether the video signal with the same parameter settings as before the interruption is received again within a predetermined delay time; and when the control unit is in the delayed reset state It is determined that the video signal with the same parameter settings as before the interruption is received again within the predetermined delay time, the control unit resumes execution in the display state and continues to control the panel unit to display the display according to the parameter settings Video signal.
本發明的功效在於：藉由當該控制單元於該顯示狀態判斷出所接收到的該視訊訊號中斷時，並非如先前技術直接進入該預備設定狀態，而是進入該延遲重設狀態，且藉由當該控制單元於該延遲重設狀態判斷出於該預定延遲時間內再次接收到具有與中斷前相同的該等參數設定值的該視訊訊號，該控制單元回復執行於該顯示狀態而繼續根據該等參數設定值控制該面板單元顯示該視訊訊號，從而避免先前技術因在不必要的情況下再次執行該設定狀態所產生的耗時。The effect of the present invention is that when the control unit determines that the received video signal is interrupted in the display state, it does not directly enter the preliminary setting state as in the prior art, but enters the delayed reset state, and by When the control unit determines in the delay reset state that the video signal with the same parameter settings as before the interruption is received again within the predetermined delay time, the control unit resumes execution in the display state and continues to perform according to the Waiting for the parameter setting value to control the panel unit to display the video signal, so as to avoid the time consuming caused by the prior art re-executing the setting state under unnecessary circumstances.
在本發明被詳細描述之前，應當注意在以下的說明內容中，類似的元件是以相同的編號來表示。Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numbers.
參閱圖1，本發明顯示器100的一實施例，包含一傳輸埠1、一面板單元2及一控制單元3。Referring to FIG. 1, an embodiment of the
該傳輸埠1例如為HDMI、Type-C USB、D-sub、DVI、DisplayPort等能接收（來自例如電腦主機）影像資料的連接埠。該面板單元2例如為一液晶面板，但不以此為限。該控制單元3電連接於該傳輸埠1及該面板單元2。The
參閱圖1及圖2，以下說明該顯示器100的控制方法。首先如步驟S01所示，該控制單元3於一預備設定狀態判斷是否經由該傳輸埠1接收到一具有多個分別對應於多個時序參數（例如H頻率、V頻率、Clock、解析度 、HDR、 FreeSync）的參數設定值（例如H頻率=67.5KHz，V頻率= 60Hz，Clock=148.5 MHz，解析度=1920x1080，HDR=OFF， FreeSync=OFF）的視訊訊號，若是，則該控制單元3由該預備設定狀態依序進入一設定狀態（步驟S02）及一顯示狀態（步驟S03、S04），若否，則再次執行步驟S01。1 and 2, the control method of the
如步驟S02所示，於該設定狀態該控制單元3套用該等參數設定值。此步驟一般也被稱為「鎖頻」或「同步」。As shown in step S02, the
如步驟S03所示，於該顯示狀態該控制單元3根據該等參數設定值控制該面板單元2顯示該視訊訊號。As shown in step S03, in the display state, the
如步驟S04所示，該控制單元3於該顯示狀態判斷所接收到的該視訊訊號是否中斷，若否，則再次執行步驟S04，若是，則該控制單元3由該顯示狀態進入一延遲重設狀態（步驟S05）。As shown in step S04, the
如步驟S05所示，於該延遲重設狀態該控制單元3判斷於一預定延遲時間（例如1秒鐘）內是否再次接收到具有與中斷前相同的該等參數設定值的該視訊訊號。在本實施例中，該預定延遲時間的時間長度可以讓使用者自行設定。As shown in step S05, in the delay reset state, the
若步驟S05判斷為是，則再次執行步驟S03，也就是當該控制單元3於該延遲重設狀態判斷出於該預定延遲時間內再次接收到具有與中斷前相同的該等參數設定值的該視訊訊號，該控制單元3回復執行於該顯示狀態而繼續根據該等參數設定值控制該面板單元2顯示該視訊訊號。If step S05 is judged to be YES, step S03 is executed again, that is, when the
若步驟S05判斷為否，則再次執行步驟S01，也就是當該控制單元3於該延遲重設狀態判斷出於該預定延遲時間內未再次接收到具有與中斷前相同的該等參數設定值的該視訊訊號，該控制單元3由該延遲重設狀態進入該預備設定狀態。If step S05 is judged to be no, then step S01 is executed again, that is, when the
綜上所述，本發明顯示器100藉由當該控制單元3於該顯示狀態判斷出所接收到的該視訊訊號中斷時，並非如先前技術直接進入該預備設定狀態，而是進入該延遲重設狀態，且藉由當該控制單元3於該延遲重設狀態判斷出於該預定延遲時間內再次接收到具有與中斷前相同的該等參數設定值的該視訊訊號，該控制單元3回復執行於該顯示狀態而繼續根據該等參數設定值控制該面板單元2顯示該視訊訊號，從而避免先前技術因在不必要的情況下再次執行該設定狀態所產生的耗時，故確實能達成本發明的目的。In summary, when the
惟以上所述者，僅為本發明的實施例而已，當不能以此限定本發明實施的範圍，凡是依本發明申請專利範圍及專利說明書內容所作的簡單的等效變化與修飾，皆仍屬本發明專利涵蓋的範圍內。However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to Within the scope covered by the patent of the present invention.
100:顯示器 1:傳輸埠 2:面板單元 3:控制單元 S01~S05:步驟100: display 1: Transmission port 2: Panel unit 3: control unit S01~S05: steps
本發明的其他的特徵及功效，將於參照圖式的實施方式中清楚地呈現，其中： 圖1是本發明顯示器的一個實施例的一硬體連接關係示意圖；及 圖2是該實施例的一流程圖。 Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: FIG. 1 is a schematic diagram of a hardware connection relationship of an embodiment of the display of the present invention; and Figure 2 is a flowchart of this embodiment.
S01~S05:步驟 S01~S05: steps
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| CN105100644A (en) * | 2015-07-15 | 2015-11-25 | 西安诺瓦电子科技有限公司 | Seamless switching method for video source |
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| CN108449641A (en) * | 2018-03-28 | 2018-08-24 | 聚好看科技股份有限公司 | Play method, apparatus, computer equipment and the storage medium of Media Stream |
| CN110855909A (en) * | 2019-11-14 | 2020-02-28 | 广州魅视电子科技有限公司 | Video signal seamless low-delay switching method and system |
| US10587823B2 (en) * | 2016-03-24 | 2020-03-10 | Hitachi Kokusai Electric Inc. | Encoding device comprising video switching device, encoding method including video switching detection method |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI550595B (en) * | 2012-05-09 | 2016-09-21 | 晨星半導體股份有限公司 | Measure equipment and associated method for response speed of display panel |
| CN105100644A (en) * | 2015-07-15 | 2015-11-25 | 西安诺瓦电子科技有限公司 | Seamless switching method for video source |
| US10587823B2 (en) * | 2016-03-24 | 2020-03-10 | Hitachi Kokusai Electric Inc. | Encoding device comprising video switching device, encoding method including video switching detection method |
| CN108449641A (en) * | 2018-03-28 | 2018-08-24 | 聚好看科技股份有限公司 | Play method, apparatus, computer equipment and the storage medium of Media Stream |
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