TWI803308B

TWI803308B - display device

Info

Publication number: TWI803308B
Application number: TW111116935A
Authority: TW
Inventors: 張家豪
Original assignee: 香港商冠捷投資有限公司
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2023-05-21
Also published as: TW202344980A

Abstract

一種顯示裝置，包含一傳輸介面、一影音控制部件及一顯像單元。傳輸介面包括一第一影像連接埠及一第二影像連接埠，第一影像連接埠能接收一第一影像訊號，第二影像連接埠能接收一第二影像訊號。影音控制部件包括一影像處理單元、一第一影像同步單元及一第二影像同步單元。第一影像同步單元能將第一影像訊號傳輸至影像處理單元，第二影像同步單元能從將第二影像訊號傳輸至影像處理單元。其中，影像處理單元只接收第一影像訊號時，會對第一影像訊號進行影像處理而讓顯像單元顯示一第一影像畫面。當影像處理單元接收第一影像訊號及第二影像訊號，且未接收一影像合成指令時，會對第一影像訊號進行影像處理而讓顯像單元顯示第一影像畫面，並讓第二影像訊號同步於第一影像訊號。A display device includes a transmission interface, an audio-visual control part and a display unit. The transmission interface includes a first image connection port and a second image connection port, the first image connection port can receive a first image signal, and the second image connection port can receive a second image signal. The video and audio control unit includes an image processing unit, a first image synchronization unit and a second image synchronization unit. The first image synchronization unit can transmit the first image signal to the image processing unit, and the second image synchronization unit can transmit the second image signal to the image processing unit. Wherein, when the image processing unit only receives the first image signal, it performs image processing on the first image signal to make the display unit display a first image frame. When the image processing unit receives the first image signal and the second image signal, and does not receive an image synthesis instruction, it will perform image processing on the first image signal to make the display unit display the first image frame, and make the second image signal Synchronized with the first video signal.

Description

display device

本發明是有關於一種顯示裝置。The invention relates to a display device.

為了讓顯示器能夠同時顯示不同訊號源的影像畫面，目前有部分顯示器具備子母畫面(picture-in-picture，PIP)或是分割畫面(picture-by-picture，PBP)的功能。然而，將顯示器從單一影像畫面切換為子母畫面或分割畫面時，需要進行各訊號源的訊號處理及訊號之間的疊加處理，因此在切換顯示模式時可能會發生影像輸出的延遲問題，影響使用體驗。In order for the display to simultaneously display images from different signal sources, some displays currently have a picture-in-picture (PIP) or picture-by-picture (PBP) function. However, when the display is switched from a single image screen to a picture-in-picture or split screen, signal processing of each signal source and superimposition processing between signals are required, so when switching display modes, there may be delays in image output, affecting Use experience.

因此，本發明之其中一目的，即在提供一種能解決前述問題的顯示裝置。Therefore, one object of the present invention is to provide a display device capable of solving the aforementioned problems.

於是，本發明顯示裝置在一些實施態樣中，包含一傳輸介面、一影音控制部件及一顯像單元。該傳輸介面包括一第一影像連接埠及一第二影像連接埠，該第一影像連接埠能接收一第一影像訊號，該第二影像連接埠能接收一不同於該第一影像訊號的第二影像訊號。該影音控制部件包括一影像處理單元、一電連接該第一影像連接埠及該影像處理單元的第一影像同步單元，及一電連接該第二影像連接埠及該影像處理單元的第二影像同步單元。該第一影像同步單元能從該第一影像連接埠接收該第一影像訊號並將該第一影像訊號傳輸至該影像處理單元，該第二影像同步單元能從該第二影像連接埠接收該第二影像訊號並將該第二影像訊號傳輸至該影像處理單元。該顯像單元電連接於該影音控制部件，能接收該影像處理單元輸出的訊號而顯示一影像畫面。其中，該影像處理單元只接收該第一影像訊號時，會對該第一影像訊號進行影像處理而輸出訊號至該顯像單元，讓該顯像單元顯示一對應該第一影像訊號的第一影像畫面；當該影像處理單元接收該第一影像訊號及該第二影像訊號，且未接收一影像合成指令時，會對該第一影像訊號進行影像處理而讓該顯像單元顯示該第一影像畫面，並讓該第二影像訊號同步於該第一影像訊號。Therefore, in some embodiments of the present invention, the display device includes a transmission interface, an audio-visual control component, and a display unit. The transmission interface includes a first image connection port and a second image connection port, the first image connection port can receive a first image signal, and the second image connection port can receive a second image signal different from the first image signal 2. video signal. The audio-visual control unit includes an image processing unit, a first image synchronization unit electrically connected to the first image connection port and the image processing unit, and a second image electrically connected to the second image connection port and the image processing unit sync unit. The first image synchronization unit can receive the first image signal from the first image connection port and transmit the first image signal to the image processing unit, and the second image synchronization unit can receive the first image signal from the second image connection port The second image signal is transmitted to the image processing unit. The display unit is electrically connected to the audio-visual control part, and can receive a signal output by the image processing unit to display an image frame. Wherein, when the image processing unit only receives the first image signal, it will perform image processing on the first image signal and output the signal to the display unit, so that the display unit can display a first image corresponding to the first image signal. Image screen; when the image processing unit receives the first image signal and the second image signal, and does not receive an image synthesis command, it will perform image processing on the first image signal to allow the display unit to display the first video frame, and make the second video signal synchronized with the first video signal.

在一些實施態樣中，當影像處理單元接收該第一影像訊號及該第二影像訊號，且後續接收該影像合成指令後，會對該第一影像訊號及該第二影像訊號進行合成處理，讓該顯像單元顯示一經該第一影像訊號及該第二影像訊號合成處理過的合成影像畫面。In some implementations, when the image processing unit receives the first image signal and the second image signal, and subsequently receives the image synthesis instruction, it will perform synthesis processing on the first image signal and the second image signal, Allowing the display unit to display a synthesized image frame processed by combining the first image signal and the second image signal.

在一些實施態樣中，該合成影像畫面為子母畫面或分割畫面。In some implementation aspects, the composite image frame is a picture-in-picture or a split screen.

本發明至少具有以下功效：藉由使用將該第二影像訊號的時序預先同步於該第一影像訊號的控制運作流程，能夠在切換為子母畫面顯示模式或分割畫面顯示模式後，迅速地完成該第一影像訊號及該第二影像訊號的合成、疊加處理，如此可有效避免顯示畫面模式切換時的畫面顯示延遲問題。The present invention has at least the following effects: by using the control operation process of pre-synchronizing the timing of the second image signal with the first image signal, it can be quickly completed after switching to the picture-in-picture display mode or the split-screen display mode. The synthesis and superimposition processing of the first video signal and the second video signal can effectively avoid the problem of screen display delay when the display screen mode is switched.

參閱圖1及圖2，為本發明顯示裝置100的一實施例。該顯示裝置100可以是電腦螢幕、電視等各類型的螢幕裝置，並包含一傳輸介面1、一影音控制部件2、一顯像單元3及一操作介面4。Referring to FIG. 1 and FIG. 2 , it is an embodiment of a display device 100 of the present invention. The display device 100 can be various types of screen devices such as computer screens and televisions, and includes a transmission interface 1 , an audio-visual control component 2 , a display unit 3 and an operation interface 4 .

該傳輸介面1電連接於該影音控制部件2，能夠接收多個影像訊號，並將該等影像訊號傳輸至該影音控制部件2以進行相應的訊號處理程序。具體來說，該傳輸介面1包括一第一影像連接埠11及一第二影像連接埠12。該第一影像連接埠11例如可以是HDMI (high definition multimedia interface)連接埠、DP (display port)連接埠等影音連接埠，能接收來自電腦主機等訊號源發出的一第一影像訊號，並由該影音控制部件2進行相關的訊號處理程序。該第二影像連接埠12同樣可以是HDMI連接埠、DP連接埠等影音連接埠，能接收一不同於該第一影像訊號的第二影像訊號，由該影音控制部件2進行相關的訊號處理程序。The transmission interface 1 is electrically connected to the audio-visual control unit 2, capable of receiving a plurality of video signals, and transmitting the video signals to the audio-visual control unit 2 for corresponding signal processing procedures. Specifically, the transmission interface 1 includes a first video connection port 11 and a second video connection port 12 . The first image connection port 11 can be, for example, an HDMI (high definition multimedia interface) connection port, a DP (display port) connection port and other audio-visual connection ports, which can receive a first image signal sent by a signal source such as a host computer, and be transmitted by The audio-visual control unit 2 performs related signal processing procedures. The second video connection port 12 can also be an audio-visual connection port such as an HDMI connection port, a DP connection port, etc., and can receive a second video signal different from the first video signal, and the audio-visual control unit 2 performs related signal processing procedures. .

該影音控制部件2為該顯示裝置100的影音訊號處理控制中樞，包括一影像處理單元21、一電連接該第一影像連接埠11及該影像處理單元21的第一影像同步單元22，及一電連接該第二影像連接埠12及該影像處理單元21的第二影像同步單元23。該影像處理單元21例如具有圖中未示出的影像縮放控制電路(scaler)、影像訊號疊加電路等電路構件，為該影音控制部件2的影音訊號處理核心。該第一影像同步單元22能從該第一影像連接埠11接收該第一影像訊號並將該第一影像訊號傳輸至該影像處理單元21，該第二影像同步單元23能從該第二影像連接埠12接收該第二影像訊號並將該第二影像訊號傳輸至該影像處理單元21，且該第一影像同步單元22及該第二影像同步單元23能接收一同步控制信號而讓該第一影像訊號及該第二影像訊號的時序同步化。The audio-visual control part 2 is the audio-visual signal processing control center of the display device 100, including an image processing unit 21, a first image synchronization unit 22 electrically connected to the first image connection port 11 and the image processing unit 21, and a The second video connection port 12 is electrically connected to the second video synchronization unit 23 of the video processing unit 21 . The image processing unit 21 has, for example, circuit components such as an image scaling control circuit (scaler) and an image signal superimposing circuit not shown in the figure, and is the audio-visual signal processing core of the audio-visual control unit 2 . The first image synchronization unit 22 can receive the first image signal from the first image connection port 11 and transmit the first image signal to the image processing unit 21, and the second image synchronization unit 23 can receive the first image signal from the second image The connection port 12 receives the second image signal and transmits the second image signal to the image processing unit 21, and the first image synchronization unit 22 and the second image synchronization unit 23 can receive a synchronization control signal to make the first image Timing synchronization between an image signal and the second image signal.

該顯像單元3電連接於該影音控制部件2，能接收該影像處理單元21輸出的訊號而顯示一影像畫面。舉例來說，該顯像單元3例如可以是以LED作為背光源的液晶面板、OLED面板、MicroLED面板等各種顯示面板，在接收影像訊號後可以控制各像素的顯示狀態以呈現出顯示畫面，其具體採用的面板類型不以特定型態為限。The display unit 3 is electrically connected to the audio-visual control unit 2 and can receive a signal output by the image processing unit 21 to display an image frame. For example, the display unit 3 can be various display panels such as LCD panels, OLED panels, and MicroLED panels with LEDs as backlights. After receiving image signals, it can control the display state of each pixel to present a display image. The type of panel used is not limited to a specific type.

該操作介面4電連接於該影音控制部件2，例如可採用整合OSD (on-screen display，螢幕上顯示介面)的實體按鍵或觸控介面，讓使用者能夠進行該顯示裝置100的畫面、聲音、使用模式等各方面的參數設定。The operation interface 4 is electrically connected to the audio-visual control unit 2, for example, physical buttons or a touch interface integrated with an OSD (on-screen display) can be used to allow the user to control the screen and sound of the display device 100. , use mode and other aspects of parameter settings.

以下參照圖2之流程圖，說明該顯示裝置100的運行流程。Referring to the flow chart of FIG. 2 , the operation process of the display device 100 will be described below.

於步驟S01，在一般顯示模式下，當該影像處理單元21只接收從該第一影像連接埠11、該第一影像同步單元22輸入的該第一影像訊號時，會對該第一影像訊號進行影像處理而輸出訊號至該顯像單元3，讓該顯像單元3顯示一對應該第一影像訊號的第一影像畫面。In step S01, in the normal display mode, when the image processing unit 21 only receives the first image signal input from the first image connection port 11 and the first image synchronization unit 22, it will Image processing is performed to output the signal to the display unit 3, so that the display unit 3 displays a first image frame corresponding to the first image signal.

於步驟S02、S03，在上述一般顯示模式下，當該影像處理單元21除了接收該第一影像訊號，還進一步接收從該第二影像連接埠12、該第二影像同步單元23輸出的該第二影像訊號時，該影像處理單元21會對該第一影像訊號進行影像處理而讓該顯像單元3持續顯示該第一影像畫面，並發出一同布信號讓該第二影像訊號同步於該第一影像訊號。也就是說，在一般顯示模式下，於步驟S03該影像處理單元21是同時接收該第一影像訊號及該第二影像訊號，但此時未接收一由使用者操作該操作介面4的OSD而切換為子母畫面顯示模式或分割畫面顯示模式的指令，亦即該影像處理單元21係未接收到一影像合成指令，此時該影像處理單元21會維持將該第一影像訊號進行處理後輸出至該顯像單元3以顯示該第一影像畫面的運作流程，但同時進行讓該第二影像訊號同步於該第一影像訊號的訊號處理作業，如此一來後續就能隨時進行將該第一影像訊號及該第二影像訊號進行影像合成、疊加之處理作業。In steps S02 and S03, in the above-mentioned normal display mode, when the image processing unit 21 receives the first image signal, it further receives the second image output from the second image connection port 12 and the second image synchronization unit 23. When there are two image signals, the image processing unit 21 will perform image processing on the first image signal to allow the display unit 3 to continuously display the first image frame, and send a distribution signal to synchronize the second image signal with the second image signal. an image signal. That is to say, in the normal display mode, the image processing unit 21 receives the first image signal and the second image signal at the same time in step S03, but does not receive an OSD operated by the user to operate the operation interface 4 at this time. Instructions for switching to picture-in-picture display mode or split-screen display mode, that is, the image processing unit 21 has not received an image synthesis instruction, and at this time, the image processing unit 21 will maintain the first image signal after processing and outputting To the display unit 3 to display the operation flow of the first image frame, but at the same time carry out the signal processing operation of synchronizing the second image signal with the first image signal, so that the first image can be carried out at any time. The image signal and the second image signal are processed for image synthesis and superimposition.

於步驟S04、S05，當使用者後續操作該操作介面4的OSD而讓該顯示裝置100從一般顯示模式切換為子母畫面顯示模式或分割畫面顯示模式的狀態時，該影像處理單元21會同時接收該第一影像訊號及該第二影像訊號，且接收影像合成指令，因此會開始對該第一影像訊號及該第二影像訊號進行合成、疊加處理，讓該顯像單元3顯示一經該第一影像訊號及該第二影像訊號合成處理過的合成影像畫面，該合成影像畫面可以是子母畫面或分割畫面。由於在前述步驟S02、S03接收該第二影像訊號時，便已預先進行將該第二影像訊號的時序同步於該第一影像訊號的處理作業，因此在切換模式而接收該影像合成指令後，該影像處理單元21就能立即進行該第一影像訊號及該第二影像訊號合成、疊加處理，不需要再等候該第二影像訊號的預處理以及該第一影像訊號、該第二影像訊號的同步化處理，如此就能無延遲地在該顯像單元3上顯現出子母畫面或分割畫面，提升從一般顯示模式切換為子母畫面顯示模式或分割畫面顯示模式的觀影體驗。另一方面，當使用者將子母畫面顯示模式或分割畫面顯示模式切換為一般顯示模式時，如果該影像處理單元21仍同時接收到該第一影像訊號及該第二影像訊號，還是會維持顯示該第一影像畫面並將該第一影像訊號、該第二影像訊號同步化的處理作業，以待後續的訊號處理方式切換。In steps S04 and S05, when the user subsequently operates the OSD of the operation interface 4 to switch the display device 100 from the normal display mode to the picture-in-picture display mode or the split-screen display mode, the image processing unit 21 will simultaneously Receive the first image signal and the second image signal, and receive the image synthesis command, so it will start to synthesize and superimpose the first image signal and the second image signal, so that the display unit 3 displays a An image signal and the second image signal are synthesized into a composite image frame, and the composite image frame can be a picture-in-picture or a split screen. Since the processing operation of synchronizing the timing of the second video signal with the first video signal has been performed in advance when receiving the second video signal in the aforementioned steps S02 and S03, after switching modes and receiving the video synthesis command, The image processing unit 21 can immediately synthesize and superimpose the first image signal and the second image signal without waiting for the preprocessing of the second image signal and the processing of the first image signal and the second image signal. Synchronization processing, so that the picture-in-picture or split-screen can be displayed on the display unit 3 without delay, and the viewing experience of switching from the normal display mode to the picture-in-picture display mode or the split-screen display mode is improved. On the other hand, when the user switches the picture-in-picture display mode or the split-screen display mode to the normal display mode, if the image processing unit 21 still receives the first image signal and the second image signal at the same time, it will still maintain The processing operation of displaying the first image frame and synchronizing the first image signal and the second image signal is to be switched in a subsequent signal processing mode.

綜合上述說明，本發明顯示裝置100藉由使用將該第二影像訊號的時序預先同步於該第一影像訊號的控制運作流程，能夠在切換為子母畫面顯示模式或分割畫面顯示模式後，迅速地完成該第一影像訊號及該第二影像訊號的合成、疊加處理，如此可有效避免顯示畫面模式切換時的畫面顯示延遲問題，故確實能達成本發明的目的。Based on the above description, the display device 100 of the present invention can quickly switch to the picture-in-picture display mode or the split-screen display mode by using the control operation flow that synchronizes the timing of the second video signal with the first video signal in advance. The synthesis and superimposition processing of the first video signal and the second video signal can be completed efficiently, so that the problem of screen display delay when the display screen mode is switched can be effectively avoided, so the purpose of the present invention can indeed be achieved.

惟以上所述者，僅為本發明之實施例而已，當不能以此限定本發明實施之範圍，凡是依本發明申請專利範圍及專利說明書內容所作之簡單的等效變化與修飾，皆仍屬本發明專利涵蓋之範圍內。But what is described above is only an embodiment of the present invention, and should not limit the scope of the present invention. All simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of the present invention.

100:顯示裝置 1:傳輸介面 11:第一影像連接埠 12:第二影像連接埠 2:影音控制部件 21:影像處理單元 22:第一影像同步單元 23:第二影像同步單元 3:顯像單元 4:操作介面 100: display device 1: Transmission interface 11: First video port 12: Second video port 2: Audio and video control parts 21: Image processing unit 22: The first image synchronization unit 23: The second image synchronization unit 3: Imaging unit 4: Operation interface

本發明之其他的特徵及功效，將於參照圖式的實施方式中清楚地呈現，其中：圖1是一系統圖，說明本發明顯示裝置的一實施例；及圖2是一流程圖，說明該顯示裝置的運行流程。 Other features and effects of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein: FIG. 1 is a system diagram illustrating an embodiment of a display device of the present invention; and Fig. 2 is a flowchart illustrating the operation flow of the display device.

S01~S05:流程步驟 S01~S05: Process steps

Claims

A display device, comprising: a transmission interface, including a first image connection port and a second image connection port, the first image connection port can receive a first image signal, and the second image connection port can receive a different The second image signal of the first image signal; an audio-visual control unit, including an image processing unit, a first image synchronization unit electrically connected to the first image connection port and the image processing unit, and a first image synchronization unit electrically connected to the second an image connection port and a second image synchronization unit of the image processing unit, the first image synchronization unit can receive the first image signal from the first image connection port and transmit the first image signal to the image processing unit, the The second image synchronization unit can receive the second image signal from the second image connection port and transmit the second image signal to the image processing unit; and a display unit is electrically connected to the audio-visual control unit and can receive the second image signal The signal output by the image processing unit displays an image screen; an operation interface is electrically connected to the audio-visual control part and can receive instructions input by the user, wherein when the image processing unit only receives the first image signal, it will The first image signal is subjected to image processing to output a signal to the display unit, so that the display unit displays a first image frame corresponding to the first image signal; when the image processing unit receives the first image signal and the second image signal Two image signals, and when an image synthesis command is not received, image processing will be performed on the first image signal so that the display unit displays the first image frame, and the second image signal is synchronized with the first image signal , the image synthesis instruction is an instruction received by the operation interface to synthesize and process the first image signal and the second image signal into a picture-in-picture display or a split-screen display; when image processing After the unit receives the first image signal and the second image signal, and subsequently receives the image synthesis command, it will perform synthesis processing on the first image signal and the second image signal, so that the display unit displays a The image signal and the second image signal are synthesized into a composite image frame, and the composite image frame is a picture-in-picture or a split screen.