TW202127243A - Display system and method of automatically adjusting display-panel parameters - Google Patents

Display system and method of automatically adjusting display-panel parameters Download PDF

Info

Publication number
TW202127243A
TW202127243A TW108148539A TW108148539A TW202127243A TW 202127243 A TW202127243 A TW 202127243A TW 108148539 A TW108148539 A TW 108148539A TW 108148539 A TW108148539 A TW 108148539A TW 202127243 A TW202127243 A TW 202127243A
Authority
TW
Taiwan
Prior art keywords
display
panel
parameters
display panel
host
Prior art date
Application number
TW108148539A
Other languages
Chinese (zh)
Other versions
TWI780391B (en
Inventor
郭盟煌
劉曙輝
Original Assignee
新唐科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 新唐科技股份有限公司 filed Critical 新唐科技股份有限公司
Priority to TW108148539A priority Critical patent/TWI780391B/en
Priority to CN202011579331.7A priority patent/CN113126946B/en
Publication of TW202127243A publication Critical patent/TW202127243A/en
Application granted granted Critical
Publication of TWI780391B publication Critical patent/TWI780391B/en

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1415—Digital output to display device ; Cooperation and interconnection of the display device with other functional units with means for detecting differences between the image stored in the host and the images displayed on the displays

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

A display system is provided. The display system includes a host configured to execute a panel-control application; and a display apparatus, electrically connected to the host. The display apparatus includes a display panel and a display controller. The panel-control application selects a configuration file including a plurality of display-panel parameters from a library of the host, and sends the display-panel parameters of the configuration file to the display controller via a specific control command, and the display controller drives the display panel according to the received display-panel parameters. The display panel determines whether the display panel is successfully lit up according to a status signal from the display panel. In response to the display panel not being lit up, the panel-control application selects another configuration file from the library and sends the display-panel parameters in the another configuration file to the display controller via the specific control command to drive the display panel until the display panel is successfully lit up.

Description

顯示系統及面板參數自動調整方法Display system and automatic adjustment method of panel parameters

本發明係有關於顯示裝置，特別是有關於一種顯示系統及面板參數自動調整方法。The invention relates to a display device, in particular to a display system and a method for automatically adjusting panel parameters.

當顯示裝置的開發廠商利用相同的顯示控制器進行具有不同顯示面板之顯示裝置的開發時，因為不同面板的解析度及時序要求均不相同，故每當更換不同的顯示面板時，開發廠商需要花費相當多時間調整顯示面板的顯示設定。傳統的做法是每當改動顯示面板的顯示參數時，均需要透過主機重新編譯(compile)新修改的驅動程式(driver)，再讓顯示控制器重新執行新的驅動程式來確認結果。然而，當部分的顯示參數(例如水平/垂直前緣及後緣)被修改之後，仍然需要再重新執行新的驅動程式才能得知顯示面板是否能正常運作。因此，開發廠商需要花費許多時間對顯示面板進行測試。When a display device developer uses the same display controller to develop a display device with different display panels, the resolution and timing requirements of different panels are different, so whenever a different display panel is replaced, the developer needs It takes a considerable amount of time to adjust the display settings of the display panel. The traditional method is that whenever the display parameters of the display panel are changed, the newly modified driver needs to be recompiled through the host, and then the display controller re-executes the new driver to confirm the result. However, after some of the display parameters (such as the horizontal/vertical front edge and the rear edge) are modified, it is still necessary to re-execute a new driver to know whether the display panel can operate normally. Therefore, developers need to spend a lot of time testing the display panel.

有鑑於此，需要一種顯示系統及面板參數自動調整方法以解決上述問題。In view of this, there is a need for a display system and a method for automatically adjusting panel parameters to solve the above-mentioned problems.

本發明係提供一種顯示系統，包括：一主機，用以執行一面板控制應用程式；以及一顯示裝置，電性連接至該主機。該顯示裝置包括：一顯示面板；以及一顯示控制器。該面板控制應用程式係由該主機之一資料庫選擇包括複數個面板參數的一設定檔，並發送一特定控制指令將該設定檔中之該等面板參數傳送至該顯示控制器，且該顯示控制器係依據該等面板參數以驅動該顯示面板。該顯示控制器係依據來自該顯示面板之一狀態信號以判斷該顯示面板是否被成功點亮。因應於該顯示面板未被成功點亮，該面板控制應用程式係由該資料庫選擇另一設定檔，並利用該特定控制指令將該另一設定檔中之該等面板參數傳送至該顯示控制器以依據該等面板參數驅動該顯示面板，直到該顯示面板被成功點亮為止。The present invention provides a display system, including: a host for executing a panel control application program; and a display device electrically connected to the host. The display device includes: a display panel; and a display controller. The panel control application program selects a configuration file including a plurality of panel parameters from a database of the host, and sends a specific control command to transmit the panel parameters in the configuration file to the display controller, and the display The controller drives the display panel according to the panel parameters. The display controller determines whether the display panel is successfully lit according to a status signal from the display panel. Because the display panel is not successfully lit, the panel control application selects another profile from the database, and uses the specific control command to send the panel parameters in the other profile to the display control The controller drives the display panel according to the panel parameters until the display panel is successfully lit.

在一些實施例中，該面板控制應用程式係將該顯示控制器之一參數控制韌體寫入該顯示裝置之一緩衝記憶體，且該顯示控制器係基於該參數控制韌體以控制該顯示面板，其中當該顯示面板被成功點亮，該顯示控制器係控制該顯示面板顯示儲存於該緩衝記憶體中的一或多張測試影像。In some embodiments, the panel control application program writes a parameter control firmware of the display controller into a buffer memory of the display device, and the display controller controls the firmware based on the parameter to control the display Panel, wherein when the display panel is successfully lit, the display controller controls the display panel to display one or more test images stored in the buffer memory.

在一些實施例中，該顯示系統更包括：一QR碼解碼器，電性連接至該主機，並用以拍攝在該顯示面板所顯示的該測試影像並進行影像辨識，且將影像辨識結果傳送至該主機之該面板控制應用程式，其中該面板控制應用程式更將該影像辨識結果傳送至該顯示控制器以判斷該顯示面板是否可正常顯示該測試影像。In some embodiments, the display system further includes: a QR code decoder, electrically connected to the host, and used to shoot the test image displayed on the display panel and perform image recognition, and transmit the image recognition result to The panel control application program of the host, wherein the panel control application program further transmits the image recognition result to the display controller to determine whether the display panel can display the test image normally.

在另一些實施例中，當該顯示控制器判斷該顯示面板無法正常顯示該測試影像，該顯示控制器係將表示顯示錯誤之一顯示狀態信號傳送至該主機，且該面板控制應用程式係自動調整該顯示面板之一部分的該等面板參數並將調整後之該等面板參數傳送至該顯示控制器以驅動該顯示面板以播放該測試影像。In other embodiments, when the display controller determines that the display panel cannot display the test image normally, the display controller transmits a display status signal indicating a display error to the host, and the panel control application is automatically Adjusting the panel parameters of a part of the display panel and transmitting the adjusted panel parameters to the display controller to drive the display panel to play the test image.

在另一些實施例中，QR碼解碼器對準顯示面板所播放的影像(例如為QR碼影像)，並且對該QR碼影像中之QR碼進行解碼(例如進行影像辨識)，以判斷該顯示面板是否可正常顯示該測試影像。當該顯示控制器判斷該顯示面板無法正常顯示該測試影像，該顯示控制器係將表示顯示錯誤之一顯示狀態信號傳送至該主機，且該面板控制應用程式係自動調整該顯示面板之一部分的該等面板參數並將調整後之該等面板參數傳送至該顯示控制器以驅動該顯示面板。In other embodiments, the QR code decoder is aligned with the image played on the display panel (for example, a QR code image), and decodes the QR code in the QR code image (for example, image recognition) to determine the display Whether the panel can display the test image normally. When the display controller determines that the display panel cannot display the test image normally, the display controller transmits a display status signal indicating a display error to the host, and the panel control application automatically adjusts the display panel The panel parameters and the adjusted panel parameters are transmitted to the display controller to drive the display panel.

承上述實施例，當該顯示控制器判斷該顯示面板可正常顯示該測試影像，該面板控制應用程式係將目前所使用的該等面板參數儲存並輸出為一參數設定檔，並整合該參數設定檔及相關驅動程式以編譯出該顯示控制器之一可執行檔。Following the above embodiment, when the display controller determines that the display panel can display the test image normally, the panel control application stores and outputs the currently used panel parameters as a parameter setting file, and integrates the parameter setting File and related driver to compile an executable file of the display controller.

本發明更提供一種面板參數自動調整方法，用於一顯示系統，該顯示系統包括一主機及一顯示裝置，且該顯示裝置包括一顯示控制器及一顯示面板。該方法包括下列步驟：從該主機之一資料庫選擇包括複數個面板參數的一設定檔，並發送一特定控制指令將該設定檔中之該等面板參數傳送至該顯示控制器；利用該顯示控制器依據該等面板參數以驅動該顯示面板；利用該顯示控制器依據來自該顯示面板之一狀態信號以判斷該顯示面板是否被成功點亮；以及因應於該顯示面板未被成功點亮，由該資料庫選擇另一設定檔，並利用該特定控制指令將該另一設定檔中之該等面板參數傳送至該顯示控制器以依據該等面板參數驅動該顯示面板，直到該顯示面板被成功點亮為止。The present invention further provides a method for automatically adjusting panel parameters, which is used in a display system. The display system includes a host and a display device, and the display device includes a display controller and a display panel. The method includes the following steps: selecting a configuration file including a plurality of panel parameters from a database of the host, and sending a specific control command to transmit the panel parameters in the configuration file to the display controller; using the display The controller drives the display panel according to the panel parameters; uses the display controller to determine whether the display panel is successfully lit according to a status signal from the display panel; and because the display panel is not successfully lit, Select another configuration file from the database, and use the specific control command to transmit the panel parameters in the other configuration file to the display controller to drive the display panel according to the panel parameters until the display panel is Until it lights up successfully.

以下說明係為完成發明的較佳實現方式，其目的在於描述本發明的基本精神，但並不用以限定本發明。實際的發明內容必須參考之後的權利要求範圍。The following description is a preferred implementation of the invention, and its purpose is to describe the basic spirit of the invention, but not to limit the invention. The actual content of the invention must refer to the scope of the claims that follow.

必須了解的是，使用於本說明書中的"包含"、"包括"等詞，係用以表示存在特定的技術特徵、數值、方法步驟、作業處理、元件以及/或組件，但並不排除可加上更多的技術特徵、數值、方法步驟、作業處理、元件、組件，或以上的任意組合。It must be understood that the words "including", "including" and other words used in this specification are used to indicate the existence of specific technical features, values, method steps, operations, elements, and/or components, but they do not exclude Add more technical features, values, method steps, job processing, components, components, or any combination of the above.

於權利要求中使用如"第一"、"第二"、"第三"等詞係用來修飾權利要求中的元件，並非用來表示之間具有優先權順序，先行關係，或者是一個元件先於另一個元件，或者是執行方法步驟時的時間先後順序，僅用來區別具有相同名字的元件。Words such as "first", "second", and "third" used in the claims are used to modify the elements in the claims, and are not used to indicate that there is an order of priority, antecedent relationship, or an element Prior to another element, or the chronological order of execution of method steps, is only used to distinguish elements with the same name.

第1A圖係顯示依據本發明一實施例中之顯示系統的方塊圖。如第1A圖所示，顯示系統10包括一主機(host)100及一顯示裝置200。主機100例如為一個人電腦或一伺服器，顯示裝置200例如為一待測試的顯示裝置。FIG. 1A is a block diagram of a display system according to an embodiment of the present invention. As shown in FIG. 1A, the display system 10 includes a host 100 and a display device 200. The host 100 is, for example, a personal computer or a server, and the display device 200 is, for example, a display device to be tested.

在一實施例中，主機100係包括一處理單元110、一圖形處理器(graphics processing unit、GPU)120、一記憶體單元130、一儲存裝置140、一傳輸介面150及至少一週邊裝置160。處理單元110、圖形處理單元120、記憶體單元130、儲存裝置140、傳輸介面150及週邊裝置160係透過系統匯流排111而互相電性連接。In one embodiment, the host 100 includes a processing unit 110, a graphics processing unit (GPU) 120, a memory unit 130, a storage device 140, a transmission interface 150, and at least one peripheral device 160. The processing unit 110, the graphics processing unit 120, the memory unit 130, the storage device 140, the transmission interface 150, and the peripheral device 160 are electrically connected to each other through the system bus 111.

處理單元110可使用多種方式實施，例如專用硬體電路或通用硬體實現(例如，單一處理器、具平行處理能力的多處理器或其他具運算能力的處理器)、上述實現方式例如可為通用處理器(general-purpose processor)或中央處理器(central processing unit，CPU)，但本發明並不限於此。圖形處理單元120例如可為一顯示卡上的圖形處理單元或是整合至處理單元110中之圖形處理單元。The processing unit 110 can be implemented in a variety of ways, such as a dedicated hardware circuit or a general-purpose hardware implementation (for example, a single processor, a multiprocessor with parallel processing capability, or other processors with computing capabilities). The foregoing implementation manner may be, for example, General-purpose processor (general-purpose processor) or central processing unit (CPU), but the present invention is not limited to this. The graphics processing unit 120 can be, for example, a graphics processing unit on a display card or a graphics processing unit integrated into the processing unit 110.

記憶體單元130為一揮發性記憶體，例如是動態隨機存取記憶體(DRAM)，但本發明並不限於此。儲存裝置140為一非揮發性記憶體(non-volatile memory)，例如可為一硬碟機(hard disk drive)、一固態硬碟(solid-state disk)、一快閃記憶體(flash memory)、或一唯讀記憶體(read-only memory)，但本發明並不限於此。The memory unit 130 is a volatile memory, such as a dynamic random access memory (DRAM), but the invention is not limited to this. The storage device 140 is a non-volatile memory, such as a hard disk drive, a solid-state disk, or a flash memory. , Or a read-only memory, but the invention is not limited to this.

儲存裝置140可儲存一面板控制應用程式141及一作業系統142(例如可為Windows、Linux、MacOS等等)，且處理單元110係將作業系統142及一面板控制應用程式141讀取至記憶體單元130並執行。圖形處理單元120例如可進行處理單元110所執行之應用程式的繪圖處理以產生包括一或多張影像的一影像信號，並將該影像信號顯示於主機100之一顯示器(未繪示)。The storage device 140 can store a panel control application 141 and an operating system 142 (for example, Windows, Linux, MacOS, etc.), and the processing unit 110 reads the operating system 142 and a panel control application 141 to the memory Unit 130 and execute. The graphics processing unit 120 can, for example, perform drawing processing of the application program executed by the processing unit 110 to generate an image signal including one or more images, and display the image signal on a display (not shown) of the host 100.

傳輸介面150可包括一或多個資料傳輸介面，例如一通用序列匯流排(Universal Serial Bus，USB)介面、USB Type-C介面、雷靂(Thunderbolt)介面、一般用途輸入輸出(General-purpose Input/Output，GPIO)介面、通用非同步收發傳輸器(Universal Asynchronous Receiver/Transmitter，UART)介面、或其組合，但本發明並不限於此。週邊裝置160例如包括：鍵盤、滑鼠、觸控板等輸入裝置，但本發明並不限於此。The transmission interface 150 may include one or more data transmission interfaces, such as a Universal Serial Bus (USB) interface, a USB Type-C interface, a Thunderbolt interface, and a general-purpose input/output (General-purpose Input/Output) interface. /Output, GPIO) interface, Universal Asynchronous Receiver/Transmitter (UART) interface, or a combination thereof, but the present invention is not limited thereto. The peripheral device 160 includes, for example, input devices such as a keyboard, a mouse, and a touch pad, but the present invention is not limited thereto.

顯示裝置200係包括一顯示控制器210、一顯示面板220、一儲存單元230、一緩衝記憶體240、及一傳輸介面250。顯示控制器210、顯示面板220、儲存單元230、緩衝記憶體240及傳輸介面250係設置於一印刷電路板(printed circuit board，PCB)205或一開發板(development board)上，如第1A圖所示。在一些實施例中，顯示裝置200例如可視為一液晶顯示模組(liquid-crystal display module，LCM)。The display device 200 includes a display controller 210, a display panel 220, a storage unit 230, a buffer memory 240, and a transmission interface 250. The display controller 210, the display panel 220, the storage unit 230, the buffer memory 240, and the transmission interface 250 are arranged on a printed circuit board (PCB) 205 or a development board, as shown in Figure 1A Shown. In some embodiments, the display device 200 can be regarded as a liquid-crystal display module (LCM), for example.

顯示控制器210例如可為一微控制器(micro control unit，MCU)、一微處理器(micro processing unit，MPU)、一應用導向積體電路(application-specific integrated circuit，ASIC)、一晶片系統(System-on-chip，SoC)或一處理器，但本發明並不限於此。The display controller 210 can be, for example, a microcontroller (micro control unit, MCU), a microprocessor (micro processing unit, MPU), an application-specific integrated circuit (ASIC), or a chip system. (System-on-chip, SoC) or a processor, but the invention is not limited to this.

顯示面板220例如可為一液晶(liquid crystal)面板搭配背光模組(backlight module，例如可由發光二極體或冷陰極螢光燈管所實現)、或是一有機發光二極體(organic light-emitting diode)面板等等，但本發明並不限於此。The display panel 220 can be, for example, a liquid crystal panel with a backlight module (for example, realized by a light emitting diode or cold cathode fluorescent tube), or an organic light emitting diode (organic light-emitting diode). Emitting diode) panels, etc., but the present invention is not limited to this.

儲存單元230例如可為一非揮發性記憶體，例如唯讀記憶體(ROM)、可抹除可編程唯讀記憶體(EPROM)、電子抹除式可編程唯讀記憶體(EEPROM)等等，但本發明並不限於此。儲存單元230係用以儲存顯示裝置200相關的韌體231，例如包括開機程序的程式碼、顯示面板220的顯示設定及背光設定之參數等等。儲存單元230例如可在顯示控制器210之外部、或是可整合至顯示控制器210中。The storage unit 230 may be, for example, a non-volatile memory, such as read-only memory (ROM), erasable programmable read-only memory (EPROM), electronically erasable programmable read-only memory (EEPROM), etc. , But the present invention is not limited to this. The storage unit 230 is used to store the firmware 231 related to the display device 200, such as the program code of the boot process, the display setting of the display panel 220, the parameters of the backlight setting, and so on. The storage unit 230 may be external to the display controller 210, or may be integrated into the display controller 210, for example.

緩衝記憶體240例如可為一揮發性記憶體(例如為動態隨機存取記憶體)，其係用以儲存欲在顯示面板220上播放的輸出影像以及顯示控制器210控制顯示面板220所需的顯示設定及背光設定之參數。在一些實施例中，緩衝記憶體240例如可整合至顯示控制器210中。舉例來說，當顯示裝置200開機時，顯示控制器210可將與開機程序有關的程式碼從儲存單元230讀取至緩衝記憶體240之第一預定空間241，並依據上述程式碼對顯示面板220及傳輸介面250進行初始化。傳輸介面250係對應於傳輸介面150，且主機100及顯示裝置200可透過傳輸介面150及250進行連接。The buffer memory 240 may be, for example, a volatile memory (for example, a dynamic random access memory), which is used to store the output image to be played on the display panel 220 and the display controller 210 controls the display panel 220. Display setting and backlight setting parameters. In some embodiments, the buffer memory 240 may be integrated into the display controller 210, for example. For example, when the display device 200 is turned on, the display controller 210 may read the program code related to the boot process from the storage unit 230 to the first predetermined space 241 of the buffer memory 240, and perform the operation on the display panel according to the above-mentioned code. 220 and the transmission interface 250 are initialized. The transmission interface 250 corresponds to the transmission interface 150, and the host 100 and the display device 200 can be connected through the transmission interfaces 150 and 250.

第1B圖係顯示依據本發明另一實施例中之顯示系統的方塊圖。FIG. 1B is a block diagram of a display system according to another embodiment of the present invention.

第1B圖中之顯示系統10與第1A圖之顯示系統10類似，其差別在於第1B圖中之顯示系統10之主機100係透過傳輸介面150之其中一者以電性連接至一快速反應二維條碼解碼器180(Quick Response Code Decoder)，其可簡稱為QR碼解碼器180。QR碼解碼器180係包括一影像擷取單元181及一微控制器182，其中影像擷取單元181例如可由電荷耦合裝置(CCD)感測器或是互補式金屬氧化物半導體(CMOS)感測器所實現，其可對準顯示面板220，並可擷取顯示面板220所播放的影像，例如測試影像為QR碼影像。微控制器182可接收影像擷取單元181所拍攝的QR碼影像，並且對該QR碼影像中之QR碼進行解碼(例如進行影像辨識)。The display system 10 in Figure 1B is similar to the display system 10 in Figure 1A. The difference is that the host 100 of the display system 10 in Figure 1B is electrically connected to a fast response second through one of the transmission interfaces 150. Quick Response Code Decoder 180 (Quick Response Code Decoder), which may be referred to as QR code decoder 180 for short. The QR code decoder 180 includes an image capturing unit 181 and a microcontroller 182. The image capturing unit 181 can be, for example, a charge coupled device (CCD) sensor or a complementary metal oxide semiconductor (CMOS) sensor. It can be aligned with the display panel 220 and can capture the image played by the display panel 220. For example, the test image is a QR code image. The microcontroller 182 can receive the QR code image captured by the image capturing unit 181, and decode the QR code in the QR code image (for example, perform image recognition).

第2A及2B圖為依據本發明一實施例中顯示系統之主機及顯示裝置的連接方式的示意圖。第2C及2D圖為依據本發明另一實施例中顯示系統之主機及顯示裝置的連接方式的示意圖。2A and 2B are schematic diagrams of the connection mode of the host and the display device of the display system according to an embodiment of the present invention. 2C and 2D are schematic diagrams of the connection mode of the host and the display device of the display system according to another embodiment of the present invention.

如第2A圖所示，主機100之處理單元110例如可將透過傳輸介面150A(例如為USB介面)及顯示裝置200之相應的傳輸介面250A(例如為USB介面)將特定控制指令及資料傳送至顯示裝置200之顯示控制器210藉以控制顯示面板220之顯示功能及背光功能、或是可將影像資料、程式碼及/或面板參數直接寫入緩衝記憶體240，其細節將詳述於後。其中，傳輸介面150A及傳輸介面250A之間的傳輸通道例如可稱為資料傳輸通道或控制信號傳輸通道。As shown in Figure 2A, the processing unit 110 of the host 100 can, for example, transmit specific control commands and data to the transmission interface 150A (e.g., a USB interface) and the corresponding transmission interface 250A (e.g., a USB interface) of the display device 200 The display controller 210 of the display device 200 controls the display function and backlight function of the display panel 220, or can directly write image data, program codes and/or panel parameters into the buffer memory 240, the details of which will be described later. Among them, the transmission channel between the transmission interface 150A and the transmission interface 250A may be referred to as a data transmission channel or a control signal transmission channel, for example.

在另一實施例中，主機100之傳輸介面150A(例如為USB介面)係與顯示裝置200之相應的傳輸介面250A(例如為USB介面)連接，且主機100之傳輸介面150B(例如為UART介面)係與顯示裝置200之相應的傳輸介面250B(例如為對應的UART介面)連接，其目的是將程式執行的結果顯示在主機100上，但本發明並不限於此。類似地，主機100之處理單元110可將透過傳輸介面150A及傳輸介面250A將特定控制指令傳送至顯示裝置200之顯示控制器210藉以控制顯示面板220之顯示功能，並另外透過傳輸介面150B及傳輸介面250B將另一特定控制指令傳送至顯示裝置200之顯示控制器210藉以控制顯示面板220之背光功能。意即在第2B圖之實施例中，主機100可分別透過不同的傳輸介面分別控制顯示面板之顯示功能及背光功能、以及顯示程式執行的結果。In another embodiment, the transmission interface 150A (e.g., a USB interface) of the host 100 is connected to the corresponding transmission interface 250A (e.g., a USB interface) of the display device 200, and the transmission interface 150B (e.g., a UART interface) of the host 100 ) Is connected to the corresponding transmission interface 250B (for example, a corresponding UART interface) of the display device 200, and its purpose is to display the result of program execution on the host 100, but the present invention is not limited to this. Similarly, the processing unit 110 of the host 100 can send specific control commands to the display controller 210 of the display device 200 through the transmission interface 150A and the transmission interface 250A to control the display function of the display panel 220, and in addition, through the transmission interface 150B and transmission The interface 250B transmits another specific control command to the display controller 210 of the display device 200 to control the backlight function of the display panel 220. This means that in the embodiment shown in FIG. 2B, the host 100 can control the display function and the backlight function of the display panel and the result of the program execution through different transmission interfaces.

為了便於說明，在下面實施例中，主機100及顯示裝置200例如透過傳輸介面150A及250A以進行連接，且傳輸介面150A及250A例如均為USB介面，如第2A圖所示。當顯示控制器210將傳輸介面250初始化後，主機100及顯示裝置200即可使用USB介面進行溝通。For ease of description, in the following embodiment, the host 100 and the display device 200 are connected through transmission interfaces 150A and 250A, for example, and the transmission interfaces 150A and 250A are, for example, USB interfaces, as shown in FIG. 2A. After the display controller 210 initializes the transmission interface 250, the host 100 and the display device 200 can communicate through the USB interface.

在此實施例，主機100之處理單元110可執行面板控制應用程式141。面板控制應用程式141例如可在主機100的顯示裝置(未繪示)顯示一使用者介面，其係用以自動設定或可讓使用者手動設定顯示面板220的各種顯示參數及背光參數，其中顯示參數及背光參數可統稱為面板參數。面板控制應用程式141並可將顯示控制器210之參數控制韌體透過USB介面寫入顯示裝置200之緩衝記憶體240之第二預定空間242。顯示控制器210即可基於參數控制韌體以控制顯示面板200。In this embodiment, the processing unit 110 of the host 100 can execute the panel control application 141. The panel control application 141, for example, can display a user interface on the display device (not shown) of the host 100, which is used to automatically set or allow the user to manually set various display parameters and backlight parameters of the display panel 220. The parameters and backlight parameters can be collectively referred to as panel parameters. The panel control application 141 can write the parameter control firmware of the display controller 210 into the second predetermined space 242 of the buffer memory 240 of the display device 200 through the USB interface. The display controller 210 can control the firmware to control the display panel 200 based on the parameters.

在此實施例中，面板控制應用程式141不僅可控制多種面板參數，亦可控制顯示控制器210及緩衝記憶體240的相關設定。上述面板參數例如包括：顯示面板220之解析度(resolution)、像素時脈(pixel clock)、影像緩衝器資料類型(frame buffer data type)、時脈極性(clock polarity)、內部暫存器設定(internal register settings)、水平時序(horizontal timing)、垂直時序(vertical timing)、背光控制(backlight control)、重置控制(reset control)、資料設定時間(data setup time)、資料保持時間(data hold time)等等，但本發明並不限於此。In this embodiment, the panel control application 141 can not only control various panel parameters, but also control related settings of the display controller 210 and the buffer memory 240. The above-mentioned panel parameters include, for example, the resolution of the display panel 220, pixel clock, frame buffer data type, clock polarity, internal register settings ( internal register settings), horizontal timing (horizontal timing), vertical timing (vertical timing), backlight control (backlight control), reset control (reset control), data setup time (data setup time), data hold time (data hold time) ) And so on, but the present invention is not limited to this.

第3圖為依據本發明一實施例中之面板控制應用程式之使用者介面的示意圖。FIG. 3 is a schematic diagram of a user interface of a panel control application according to an embodiment of the present invention.

在一實施例中，面板控制應用程式141之使用者介面300可讓使用者手動設定各個面板參數之選項，且各選項可包括一或多個子參數。舉例來說，解析度之控制設定可包括垂直顯示週期(horizontal display period)及水平顯示週期(horizontal display period)，水平時序可包括水平後緣(horizontal back porch)、水平前緣(horizontal front porch)、水平脈衝寬度(horizontal pulse width)，垂直時序可包括垂直後緣(vertical back porch)、垂直前緣(vertical front porch)、垂直脈衝寬度(vertical pulse width)。時脈極性之設定可包括水平/垂直同步信號、資料致能信號、以及像素時脈的極性，例如為高態動作(active high)或低態動作(active low)。SPI設定及I2 C設定可分別包括對SPI及I2 C匯流排的相關設定。影像緩衝器資料類型例如可包括：RGB555、RGB565、RGBx888、RGB888x、YCbYCr及類似組合等等，但本發明並不限於此。In one embodiment, the user interface 300 of the panel control application 141 allows the user to manually set the options of each panel parameter, and each option may include one or more sub-parameters. For example, the resolution control setting can include a vertical display period (horizontal display period) and a horizontal display period (horizontal display period), and the horizontal timing can include a horizontal back porch and a horizontal front porch. , Horizontal pulse width (horizontal pulse width), vertical timing can include vertical back porch, vertical front porch, and vertical pulse width. The setting of the clock polarity can include the horizontal/vertical synchronization signal, the data enable signal, and the polarity of the pixel clock, such as active high or active low. The SPI setting and the I 2 C setting can include the relevant setting for the SPI and I 2 C bus respectively. The image buffer data type may include, for example, RGB555, RGB565, RGBx888, RGB888x, YCbYCr, and similar combinations, etc., but the invention is not limited thereto.

例如包括：時脈頻率、垂直週期、水平顯示週期、水平後緣、水平前緣、水平脈衝寬度、垂直週期、垂直顯示週期、垂直後緣、垂直前緣、垂直脈衝寬度、資料設定時間、資料保持時間，但本發明並不限於此，且使用者介面可依據實際需求而進行設計。其中，當顯示控制器210依據上述顯示參數而控制顯示面板220時，至少要上面所列示的顯示參數符合顯示面板220之時序要求，顯示面板220才能被正確地點亮(light up)。Examples include: clock frequency, vertical period, horizontal display period, horizontal trailing edge, horizontal leading edge, horizontal pulse width, vertical period, vertical display period, vertical trailing edge, vertical leading edge, vertical pulse width, data setting time, data Keep time, but the present invention is not limited to this, and the user interface can be designed according to actual needs. Wherein, when the display controller 210 controls the display panel 220 according to the above display parameters, at least the display parameters listed above must meet the timing requirements of the display panel 220 so that the display panel 220 can be correctly lighted up.

詳細而言，當顯示控制器210已成功執行參數控制韌體後，面板控制應用程式141即可透過傳輸介面150A及250A將特定控制指令傳送至顯示控制器210，進而控制顯示面板210之顯示功能及背光功能。其中，上述特定控制指令例如為USB廠商指令(vendor command)，且可包括上述各種面板參數。舉例來說，若開發人員欲手動修改部分面板參數，可經由面板控制應用程式141之使用者介面中所提供修改的部分面板參數。In detail, after the display controller 210 has successfully executed the parameter control firmware, the panel control application 141 can send specific control commands to the display controller 210 through the transmission interfaces 150A and 250A to control the display functions of the display panel 210 And backlight function. Wherein, the aforementioned specific control command is, for example, a USB vendor command, and may include the aforementioned various panel parameters. For example, if the developer wants to manually modify some panel parameters, he can use the panel control application 141 to provide the modified part of the panel parameters in the user interface.

此外，面板控制應用程式141可依據顯示控制器210所提供的回饋資訊以自動調整面板參數，並將調整後的面板參數加入特定控制指令以傳送至顯示控制器210。其中，上述回饋資訊可包括顯示面板220之一狀態信號(例如表示是否已被成功點亮)、錯誤計數值等等，但本發明並不限於此。顯示控制器210將特定控制指令進行解碼後即可執行在特定控制指令中的相關面板參數，進而依據新的相關面板參數以驅動顯示面板220。In addition, the panel control application 141 can automatically adjust the panel parameters according to the feedback information provided by the display controller 210, and add the adjusted panel parameters to a specific control command to send to the display controller 210. The above feedback information may include a status signal of the display panel 220 (for example, indicating whether it has been successfully lit), an error count value, etc., but the present invention is not limited to this. After the display controller 210 decodes the specific control instruction, the relevant panel parameter in the specific control instruction can be executed, and then the display panel 220 can be driven according to the new relevant panel parameter.

詳細而言，主機100的資料庫143係儲存複數個設定檔，且每個設定檔均對應於一組面板參數。每一組面板參數例如為不同的顯示設定及/或背光設定，且可記錄於相應的一設定檔，例如可為一文字檔。當顯示控制器210偵測到來自顯示面板220之狀態信號為未點亮(例如為低邏輯狀態)時，則顯示控制器210可透過傳輸介面150A及250A將狀態信號回報至主機100，且面板控制應用程式141可自動挑選並載入在資料庫143中之下一組設定檔，並將所挑選之設定檔中的整組面板參數加入特定控制指令以傳送至顯示控制器210，進而讓顯示控制器210依據新的面板參數而驅動顯示面板220。上述流程可自動重覆執行，直到顯示面板220可被成功點亮或是已試過資料庫143中所有的設定檔為止。In detail, the database 143 of the host 100 stores a plurality of configuration files, and each configuration file corresponds to a set of panel parameters. Each group of panel parameters is, for example, a different display setting and/or backlight setting, and can be recorded in a corresponding configuration file, for example, a text file. When the display controller 210 detects that the status signal from the display panel 220 is not lit (for example, a low logic state), the display controller 210 can report the status signal to the host 100 through the transmission interfaces 150A and 250A, and the panel The control application 141 can automatically select and load the next set of configuration files in the database 143, and add the entire set of panel parameters in the selected configuration file to a specific control command to send to the display controller 210 for display The controller 210 drives the display panel 220 according to the new panel parameters. The above process can be automatically executed repeatedly until the display panel 220 can be successfully lit or all the configuration files in the database 143 have been tried.

若資料庫143中所有的設定檔均已試過且未能成功點亮顯示面板220時，則開發人員可利用面板控制應用程式141的使用者介面以手動設定一或多個面板參數。每當面板控制應用程式141的使用者介面中之任一個面板參數被修改後，面板控制應用程式141可自動將新的整組面板參數加入特定控制指令並傳送至顯示控制器210以驅動顯示面板220。選擇性地，開發人員可在面板控制應用程式141的使用者介面上調整欲修改的面板參數後，再手動按下一「執行」按鈕310，藉以讓面板控制應用程式141將新的整組面板參數加入特定控制指令並傳送至顯示控制器210以驅動顯示面板220。If all the configuration files in the database 143 have been tried and the display panel 220 is unsuccessful, the developer can use the user interface of the panel control application 141 to manually set one or more panel parameters. Whenever any panel parameter in the user interface of the panel control application 141 is modified, the panel control application 141 can automatically add a new set of panel parameters to a specific control command and send it to the display controller 210 to drive the display panel 220. Optionally, the developer can adjust the panel parameters to be modified on the user interface of the panel control application 141, and then manually press the "Execute" button 310, so that the panel control application 141 can update the entire set of panels The parameters are added to specific control instructions and transmitted to the display controller 210 to drive the display panel 220.

當顯示面板220可被目前的顯示設定及背光設定成功點亮後，顯示控制器210例如可依據顯示面板220的狀態信號(例如為高邏輯狀態)以控制顯示面板220顯示儲存於緩衝記憶體240之第三預定空間243中的測試影像。舉例來說，主機100之處理單元110可透過特定指令將欲測試的一或多張影像預先寫入緩衝記憶體240中之第三預定空間243，或是待顯示面板220可成功被點亮後再透過特定指令將欲測試的一或多張影像預先寫入緩衝記憶體240中之第三預定空間243。顯示控制器210即可依據顯示面板220的狀態信號控制顯示面板220播放在緩衝記憶體240之第三預定空間243所儲存的一或多張測試影像，其中上述測試影像可包括特定的測試圖樣(test pattern)或是由亂數產生器(未繪示)所產生的測試圖樣。After the display panel 220 can be successfully lit by the current display setting and backlight setting, the display controller 210 can control the display panel 220 to display and store it in the buffer memory 240 according to the state signal of the display panel 220 (for example, a high logic state). The test image in the third predetermined space 243. For example, the processing unit 110 of the host 100 can pre-write one or more images to be tested into the third predetermined space 243 in the buffer memory 240 through a specific command, or after the display panel 220 can be successfully lit Then, one or more images to be tested are written into the third predetermined space 243 in the buffer memory 240 in advance through a specific command. The display controller 210 can control the display panel 220 to play one or more test images stored in the third predetermined space 243 of the buffer memory 240 according to the state signal of the display panel 220, wherein the test images may include specific test patterns ( test pattern) or a test pattern generated by a random number generator (not shown).

舉例來說，當水平時序中之水平後緣及水平前緣、以及垂直時序中的垂直後緣及垂直後緣未被正確設定時，雖然顯示面板220可被點亮，但並無法正確地顯示測試影像。此時，顯示控制器210可利用一顯示狀態信號(例如表示顯示錯誤)以回報上述情況至主機100，且面板控制應用程式141可自動地調整水平時序之水平後緣、水平前緣及水平脈衝寬度、垂直時序之垂直後緣、垂直前緣及垂直脈衝寬度、及驅動電壓等等的面板參數，並透過特定控制指令將調整後之上述面板參數傳送至顯示控制器210，且顯示控制器210即可依據調整後之上述面板參數再重新控制顯示面板220播放儲存於緩衝記憶體240之第三預定空間243的測試影像。此外，開發人員亦可觀看在顯示面板220播放的測試影像以重複確認測試影像是否能正常播放。For example, when the horizontal trailing edge and the horizontal leading edge in the horizontal sequence, and the vertical trailing edge and the vertical trailing edge in the vertical sequence are not set correctly, although the display panel 220 can be lit, it cannot be displayed correctly Test image. At this time, the display controller 210 can use a display status signal (for example, indicating a display error) to report the above situation to the host 100, and the panel control application 141 can automatically adjust the horizontal trailing edge, horizontal leading edge, and horizontal pulse of the horizontal timing. The panel parameters such as the width, the vertical rear edge of the vertical timing, the vertical front edge and the vertical pulse width, and the driving voltage, etc., and the adjusted above-mentioned panel parameters are transmitted to the display controller 210 through a specific control command, and the display controller 210 The display panel 220 can be re-controlled to play the test image stored in the third predetermined space 243 of the buffer memory 240 according to the adjusted panel parameters. In addition, the developer can also watch the test image played on the display panel 220 to repeatedly confirm whether the test image can be played normally.

當重新播放的測試影像之位元錯誤數量小於一預定閾值時，表示顯示面板220目前所使用的面板參數之設定可正常運作，且顯示控制器210可利用顯示狀態信號(例如表示顯示正常)以將上述情況回報至主機100，故面板控制應用程式141可將顯示面板220目前所使用的面板參數儲存並輸出(save and export)為對應的一設定檔。將上述設定檔與其他不需修改的顯示控制器210之驅動程式進行整合即可編譯出可讓顯示面板220正確顯示的執行檔。When the number of bit errors of the replayed test image is less than a predetermined threshold, it means that the setting of the panel parameters currently used by the display panel 220 can operate normally, and the display controller 210 can use the display status signal (for example, indicating that the display is normal). The above situation is reported to the host 100, so the panel control application 141 can save and export the panel parameters currently used by the display panel 220 as a corresponding configuration file. Integrating the above configuration file with other drivers of the display controller 210 that do not need to be modified can compile an executable file that can be correctly displayed by the display panel 220.

請同時參考第1B圖及第2C～2D圖。第2C～2D圖與第2A～2B圖之差異在於第2C～2D圖中之主機100可透過傳輸介面150C以電性連接至QR碼解碼器180。在另一實施例中，處理單元110所執行的面板控制應用程式141係透過傳輸介面150及250傳送一QR碼影像到顯示裝置 200，並且在顯示面板220上播放上述QR碼影像。此時，可將QR碼解碼器180的影像擷取單元181對準顯示面板220所播放的影像(例如為QR碼影像)並且面板控制應用程式141可透過傳輸介面150C傳送控制信號至QR碼解碼器180以通知QR碼解碼器180開始進行QR碼之解碼處理，並將QR碼解碼器180解碼所得到的資料結果(例如可稱為影像辨識結果或測試結果)透過傳輸介面150C回傳至面板控制應用程式141。因此，面板控制應用程式141可將測試結果顯示在螢幕(例如顯示面板220)上或用喇叭(未繪示)播放，並且可透過傳輸介面150B及250B將測試結果傳送至顯示控制器210。顯示控制器210則可依據測試結果判斷顯示面板200是否能正常顯示影像。Please refer to Figure 1B and Figures 2C to 2D at the same time. The difference between FIGS. 2C-2D and FIGS. 2A-2B is that the host 100 in FIGS. 2C-2D can be electrically connected to the QR code decoder 180 through the transmission interface 150C. In another embodiment, the panel control application 141 executed by the processing unit 110 transmits a QR code image to the display device 200 through the transmission interfaces 150 and 250, and the QR code image is played on the display panel 220. At this time, the image capturing unit 181 of the QR code decoder 180 can be aligned with the image played by the display panel 220 (for example, a QR code image), and the panel control application 141 can send a control signal to the QR code decoder through the transmission interface 150C The device 180 informs the QR code decoder 180 to start the decoding process of the QR code, and transmits the data result (for example, it can be called the image recognition result or the test result) obtained by the QR code decoder 180 to the panel through the transmission interface 150C Control application 141. Therefore, the panel control application 141 can display the test result on the screen (such as the display panel 220) or play it with a speaker (not shown), and can transmit the test result to the display controller 210 through the transmission interfaces 150B and 250B. The display controller 210 can determine whether the display panel 200 can display images normally according to the test result.

舉例來說，當顯示面板220的水平時序中之水平後緣及水平前緣、以及垂直時序中的垂直後緣及垂直後緣未被正確設定時，雖然顯示面板220可被點亮，但並無法正確地顯示測試影像。此時，QR碼解碼器180可將顯示面板220所播放之影像的影像辨識結果回報至主機100，且面板控制應用程式141可自動地調整水平時序之水平後緣、水平前緣及水平脈衝寬度、垂直時序之垂直後緣、垂直前緣及垂直脈衝寬度、及驅動電壓等等的面板參數，並透過特定控制指令將調整後之上述面板參數傳送至顯示控制器210。顯示控制器210即可依據調整後之上述面板參數再重新控制顯示面板220播放儲存於緩衝記憶體240之第三預定空間243的測試影像。此外，開發人員亦可觀看在顯示面板220播放的測試影像以重複確認測試影像是否能正常播放。For example, when the horizontal rear edge and the horizontal front edge in the horizontal timing of the display panel 220, and the vertical rear edge and the vertical rear edge in the vertical timing are not correctly set, although the display panel 220 may be lit, it is not The test image cannot be displayed correctly. At this time, the QR code decoder 180 can report the image recognition result of the image played by the display panel 220 to the host 100, and the panel control application 141 can automatically adjust the horizontal rear edge, horizontal front edge and horizontal pulse width of the horizontal timing , The panel parameters such as the vertical rear edge, the vertical front edge and the vertical pulse width, and the driving voltage of the vertical timing sequence, and the adjusted above-mentioned panel parameters are transmitted to the display controller 210 through a specific control command. The display controller 210 can re-control the display panel 220 to play the test image stored in the third predetermined space 243 of the buffer memory 240 according to the adjusted panel parameters. In addition, the developer can also watch the test image played on the display panel 220 to repeatedly confirm whether the test image can be played normally.

當重新播放的測試QR碼影像經過QR碼解碼器180辨識成功並將辨識成功的結果回報至主機100後，表示顯示面板220目前所使用的面板參數之設定可正常運作。當觀看在顯示面板220播放的測試影像確認測試影像是正常播放，表示顯示面板220目前所使用的面板參數之設定可正常運作，故面板控制應用程式141可將顯示面板220目前所使用的面板參數儲存並輸出(save and export)為對應的一設定檔。將上述設定檔與其他不需修改的顯示控制器210之驅動程式進行整合即可編譯出可讓顯示面板220正確顯示的執行檔。When the replayed test QR code image is successfully recognized by the QR code decoder 180 and the result of the successful recognition is reported to the host 100, it means that the setting of the panel parameters currently used by the display panel 220 can work normally. When viewing the test image played on the display panel 220 to confirm that the test image is played normally, it means that the setting of the panel parameters currently used by the display panel 220 can work normally, so the panel control application 141 can change the panel parameters currently used by the display panel 220 Save and export as a corresponding configuration file. Integrating the above configuration file with other drivers of the display controller 210 that do not need to be modified can compile an executable file that can be correctly displayed by the display panel 220.

在一些實施例中，顯示裝置200可包括一非揮發性記憶體，例如是SD卡或NAND快閃記憶體，用以儲存面板控制應用程式141所產生可讓顯示面板220正確顯示畫面之設定檔。若更換顯示裝置200上的顯示面板220但未更換顯示控制器210時，可利用上述流程以產生讓新的顯示面板220可正確顯示的設定檔，但並不需要更改參數控制韌體及顯示面板之驅動程式。因此，經由上述流程，可大幅縮短顯示裝置之產品開發時間。In some embodiments, the display device 200 may include a non-volatile memory, such as an SD card or NAND flash memory, to store the configuration file generated by the panel control application 141 that allows the display panel 220 to display the screen correctly . If the display panel 220 on the display device 200 is replaced but the display controller 210 is not replaced, the above process can be used to generate a profile that allows the new display panel 220 to be displayed correctly, but there is no need to change the parameter control firmware and the display panel The driver. Therefore, through the above process, the product development time of the display device can be greatly shortened.

第4A圖為依據本發明一實施例中之面板參數自動調整方法的流程圖。請同時參考第1A圖及第4A圖。FIG. 4A is a flowchart of a method for automatically adjusting panel parameters according to an embodiment of the present invention. Please refer to Figure 1A and Figure 4A at the same time.

在步驟S410，連接主機100及顯示裝置200。舉例來說，主機100及顯示裝置200可透過傳輸介面150及250進行連接，且傳輸介面150及250例如為USB介面。In step S410, the host 100 and the display device 200 are connected. For example, the host 100 and the display device 200 can be connected through the transmission interfaces 150 and 250, and the transmission interfaces 150 and 250 are, for example, USB interfaces.

在步驟S420，初始化顯示裝置200之傳輸介面250。舉例來說，當顯示控制器210執行開機程序的程式碼以將傳輸介面250初始化後，主機100及顯示裝置200即可使用USB介面進行溝通。In step S420, the transmission interface 250 of the display device 200 is initialized. For example, when the display controller 210 executes the program code of the boot process to initialize the transmission interface 250, the host 100 and the display device 200 can communicate with each other through the USB interface.

在步驟S430，利用主機100之面板控制應用程式141將顯示控制器210之參數控制韌體透過傳輸介面250寫入顯示裝置200之緩衝記憶體240之第二預定空間242。因此，顯示控制器210即可基於參數控制韌體進行操作。In step S430, the panel control application 141 of the host 100 is used to write the parameter control firmware of the display controller 210 into the second predetermined space 242 of the buffer memory 240 of the display device 200 through the transmission interface 250. Therefore, the display controller 210 can control the firmware to operate based on the parameters.

在步驟S435，利用主機100之面板控制應用程式141從資料庫143選擇一設定檔並發送一特定控制指令將該設定檔中之面板參數傳送至顯示控制器210。上述面板參數例如包括：顯示面板220之解析度、像素時脈、影像緩衝器資料類型、時脈極性、內部暫存器設定、水平時序、垂直時序、背光控制、重置控制、資料設定時間、資料保持時間等等，但本發明並不限於此。In step S435, the panel control application 141 of the host 100 is used to select a profile from the database 143 and send a specific control command to transmit the panel parameters in the profile to the display controller 210. The above-mentioned panel parameters include, for example, the resolution of the display panel 220, pixel clock, image buffer data type, clock polarity, internal register settings, horizontal timing, vertical timing, backlight control, reset control, data setting time, Data retention time, etc., but the present invention is not limited to this.

在步驟S440，顯示控制器210執行該特定控制指令中之面板參數以驅動顯示面板220。In step S440, the display controller 210 executes the panel parameters in the specific control command to drive the display panel 220.

在步驟S450，顯示控制器210判斷顯示面板220是否被成功點亮。舉例來說，顯示控制器210可依據來自顯示面板220之一狀態信號以判斷顯示面板220是否被成功點亮。若顯示面板220被成功點亮，則執行步驟S460；若顯示面板220未被成功點亮，則回到步驟S435，且面板控制應用程式141會從資料庫143選擇另一設定檔。In step S450, the display controller 210 determines whether the display panel 220 is successfully lit. For example, the display controller 210 can determine whether the display panel 220 is successfully lit according to a status signal from the display panel 220. If the display panel 220 is successfully lit, step S460 is executed; if the display panel 220 is not successfully lit, then return to step S435, and the panel control application 141 will select another profile from the database 143.

在步驟S460，顯示控制器210控制顯示面板220顯示儲存於緩衝記憶體240中的測試影像。In step S460, the display controller 210 controls the display panel 220 to display the test image stored in the buffer memory 240.

在步驟S470，顯示控制器210判斷顯示面板200是否能正常顯示影像。若顯示面板200可正常顯示影像，則執行步驟S490；若顯示面板200無法正常顯示影像，則執行步驟S480。In step S470, the display controller 210 determines whether the display panel 200 can display images normally. If the display panel 200 can display images normally, step S490 is executed; if the display panel 200 cannot display images normally, step S480 is executed.

舉例來說，在顯示面板220的各個列驅動器及各個行驅動器可包括偵測電路以偵測所播放的測試影像是否發生錯誤或是顯示控制器210可判斷所播放的測試影像是否發生錯誤，例如顯示的測試影像之像素發生位元錯誤或是眼圖(eye diagram)產生擠壓的現像，且顯示控制器210例如可計算在各個列驅動器及各個行驅動器之偵測電路所偵測到的位元錯誤數量，並據以判斷顯示面板200是否能正常顯示影像，且顯示控制器210可回報顯示狀態信號(例如表示顯示錯誤或顯示正常)至主機100。For example, each column driver and each row driver of the display panel 220 may include a detection circuit to detect whether an error occurs in the played test image or the display controller 210 may determine whether an error occurs in the played test image, for example The pixel of the displayed test image has bit errors or the eye diagram (eye diagram) is squeezed. For example, the display controller 210 can calculate the position detected by the detection circuit of each column driver and each row driver. Based on the number of meta errors, it is determined whether the display panel 200 can display images normally, and the display controller 210 can report a display status signal (for example, indicating a display error or display is normal) to the host 100.

在步驟S480，面板控制應用程式141自動調整顯示面板200之部分面板參數並將調整後之上述面板參數傳送至顯示控制器210以驅動顯示面板220。舉例來說，上述部分面板參數可包括：水平時序之水平後緣、水平前緣及水平脈衝寬度、垂直時序之垂直後緣、垂直前緣及垂直脈衝寬度、及驅動電壓等等的面板參數，但本發明並不限於此。需注意的是，在步驟S480後會接著回到步驟S460以控制顯示面板220顯示儲存於緩衝記憶體240中的測試影像。In step S480, the panel control application 141 automatically adjusts some of the panel parameters of the display panel 200 and transmits the adjusted panel parameters to the display controller 210 to drive the display panel 220. For example, some of the above-mentioned panel parameters may include panel parameters such as the horizontal rear edge, horizontal front edge and horizontal pulse width of the horizontal sequence, the vertical rear edge of the vertical sequence, the vertical front edge and the vertical pulse width, and the driving voltage. However, the present invention is not limited to this. It should be noted that after step S480, it will go back to step S460 to control the display panel 220 to display the test image stored in the buffer memory 240.

在步驟S490，面板控制應用程式141係將目前所使用的面板參數儲存並輸出為一參數設定檔(例如同樣可為文字檔)，並整合該參數設定檔及相關驅動程式以編譯出一可執行檔。舉例來說，將上述設定檔與其他不需修改的顯示控制器210之驅動程式進行整合即可編譯出可讓顯示面板220正確顯示的執行檔。In step S490, the panel control application 141 stores and outputs the currently used panel parameters as a parameter setting file (for example, it can also be a text file), and integrates the parameter setting file and related drivers to compile an executable files. For example, by integrating the above configuration file with other drivers of the display controller 210 that do not need to be modified, an executable file that can be correctly displayed by the display panel 220 can be compiled.

第4B-1及4B-2圖為依據本發明一實施例中之面板參數自動調整方法的流程圖。請同時參考第1B圖及第4B-1及4B-2圖。4B-1 and 4B-2 are flowcharts of a method for automatically adjusting panel parameters according to an embodiment of the present invention. Please refer to Figure 1B and Figures 4B-1 and 4B-2 at the same time.

第4B-1及4B-2圖之流程係類似於第4A圖之流程，其中第4A圖及第4B-1及4B-2圖之差異在於在第4B-1及4B-2圖中之步驟S460之後係執行步驟S465，且當步驟S470判斷為無法正常顯示影像時，會執行步驟S480。The flow in Figures 4B-1 and 4B-2 is similar to the flow in Figure 4A. The difference between Figure 4A and Figures 4B-1 and 4B-2 lies in the steps in Figures 4B-1 and 4B-2. After S460, step S465 is executed, and when it is determined in step S470 that the image cannot be displayed normally, step S480 is executed.

在步驟S465，利用QR碼解碼器180拍攝顯示面板220所播放之影像以進行影像辨識，並將影像辨識結果傳送至主機100。舉例來說，面板控制應用程式141可透過傳輸介面150A及250A以傳送測試影像(例如為QR碼影像)到顯示裝置200的顯示面板220，並且由顯示面板220播放上述測試影像。QR碼解碼器180則可拍攝顯示面板220所播放的測試影像並進行影像辨識，並將所得到的影像辨識結果傳送至主機100所執行的面板控制應用程式141。因此，面板控制應用程式141可將測試結果顯示在螢幕(例如顯示面板220)上或用喇叭(未繪示)播放，並且可透過傳輸介面150B及250B將測試結果傳送至顯示控制器210。在步驟S470，顯示控制器210或使用者則可依據測試結果判斷顯示面板200是否能正常顯示影像。In step S465, the QR code decoder 180 is used to capture the image played on the display panel 220 for image recognition, and the result of the image recognition is transmitted to the host 100. For example, the panel control application 141 can transmit a test image (such as a QR code image) to the display panel 220 of the display device 200 through the transmission interfaces 150A and 250A, and the display panel 220 can play the test image. The QR code decoder 180 can capture the test image played by the display panel 220 and perform image recognition, and transmit the obtained image recognition result to the panel control application 141 executed by the host 100. Therefore, the panel control application 141 can display the test result on the screen (such as the display panel 220) or play it with a speaker (not shown), and can transmit the test result to the display controller 210 through the transmission interfaces 150B and 250B. In step S470, the display controller 210 or the user can determine whether the display panel 200 can display images normally according to the test result.

綜上所述，本發明係提供一種顯示裝置及面板參數自動調整方法，其可讓顯示系統中之主機與顯示裝置自動調整可讓顯示面板可正確顯示影像之面板參數及背光參數。若更換顯示裝置上的顯示面板但未更換顯示控制器210時，可利用前述實施例之流程以產生讓新的顯示面板可正確顯示的設定檔，但並不需要更改參數控制韌體及顯示面板之驅動程式。因此，本發明可大幅縮短顯示裝置之產品開發時間。In summary, the present invention provides a display device and a method for automatically adjusting panel parameters, which can allow the host and display device in the display system to automatically adjust panel parameters and backlight parameters that allow the display panel to correctly display images. If the display panel on the display device is replaced but the display controller 210 is not replaced, the process of the foregoing embodiment can be used to generate a configuration file that allows the new display panel to be displayed correctly, but there is no need to change the parameter control firmware and the display panel The driver. Therefore, the present invention can greatly shorten the product development time of the display device.

本發明雖以較佳實施例揭露如上，然其並非用以限定本發明的範圍，任何所屬技術領域中具有通常知識者，在不脫離本發明之精神和範圍內，當可做些許的更動與潤飾，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。Although the present invention is disclosed as above in a preferred embodiment, it is not intended to limit the scope of the present invention. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. Retouching, therefore, the scope of protection of the present invention shall be subject to the scope of the attached patent application.

10:顯示系統 100:主機 110:處理單元 111:系統匯流排 120:圖形處理單元 130:記憶體單元 140:儲存裝置 141:面板控制應用程式 142:作業系統 143:資料庫 150:傳輸介面 160:週邊裝置 180:QR碼解碼器 181:影像擷取單元 182:微控制器 200:顯示裝置 205:印刷電路板 210:顯示控制器 220:顯示面板 230:儲存單元 231:韌體 240:緩衝記憶體 241:第一預定空間 242:第二預定空間 243:第三預定空間 250:傳輸介面 150A、150B、250A、250B、150C:傳輸介面 300:使用者介面 310:按鈕 S410－S490:步驟10: Display system 100: host 110: processing unit 111: system bus 120: graphics processing unit 130: memory unit 140: storage device 141: Panel control application 142: Operating System 143: Database 150: Transmission interface 160: Peripheral devices 180: QR code decoder 181: Image capture unit 182: Microcontroller 200: display device 205: Printed Circuit Board 210: display controller 220: display panel 230: storage unit 231: Firmware 240: buffer memory 241: The first predetermined space 242: second predetermined space 243: The third predetermined space 250: Transmission interface 150A, 150B, 250A, 250B, 150C: transmission interface 300: User Interface 310: Button S410－S490: steps

第1A圖係顯示依據本發明一實施例中之顯示系統的方塊圖。 第1B圖係顯示依據本發明另一實施例中之顯示系統的方塊圖。 第2A及2B圖為依據本發明一實施例中顯示系統之主機及顯示裝置的連接方式的示意圖。 第2C及2D圖為依據本發明另一實施例中顯示系統之主機及顯示裝置的連接方式的示意圖。 第3圖為依據本發明一實施例中之面板控制應用程式之使用者介面的示意圖。 第4A圖為依據本發明一實施例中之面板參數自動調整方法的流程圖。 第4B-1及4B-2圖為依據本發明一實施例中之面板參數自動調整方法的流程圖。FIG. 1A is a block diagram of a display system according to an embodiment of the present invention. FIG. 1B is a block diagram of a display system according to another embodiment of the present invention. 2A and 2B are schematic diagrams of the connection mode of the host and the display device of the display system according to an embodiment of the present invention. 2C and 2D are schematic diagrams of the connection mode of the host and the display device of the display system according to another embodiment of the present invention. FIG. 3 is a schematic diagram of a user interface of a panel control application according to an embodiment of the present invention. FIG. 4A is a flowchart of a method for automatically adjusting panel parameters according to an embodiment of the present invention. 4B-1 and 4B-2 are flowcharts of a method for automatically adjusting panel parameters according to an embodiment of the present invention.

10:顯示系統10: Display system

200:顯示裝置200: display device

100:主機100: host

205:印刷電路板205: Printed Circuit Board

110:處理單元110: processing unit

210:顯示控制器210: display controller

111:系統匯流排111: system bus

220:顯示面板220: display panel

120:圖形處理單元120: graphics processing unit

230:儲存單元230: storage unit

130:記憶體單元130: memory unit

231:韌體231: Firmware

140:儲存裝置140: storage device

240:緩衝記憶體240: buffer memory

141:面板控制應用程式141: Panel control application

241:第一預定空間241: The first predetermined space

142:作業系統142: Operating System

242:第二預定空間242: second predetermined space

143:資料庫143: Database

243:第三預定空間243: The third predetermined space

150:傳輸介面150: Transmission interface

250:傳輸介面250: Transmission interface

160:週邊裝置160: Peripheral devices

Claims (10)

一種顯示系統，包括： 一主機，用以執行一面板控制應用程式；以及 一顯示裝置，電性連接至該主機，且該顯示裝置包括： 一顯示面板；以及 一顯示控制器； 其中，該面板控制應用程式係由該主機之一資料庫選擇包括複數個面板參數的一設定檔，並發送一特定控制指令將該設定檔中之該等面板參數傳送至該顯示控制器，且該顯示控制器係依據該等面板參數以驅動該顯示面板； 其中，該顯示控制器係依據來自該顯示面板之一狀態信號以判斷該顯示面板是否被成功點亮； 因應於該顯示面板未被成功點亮，該面板控制應用程式係由該資料庫選擇另一設定檔，並利用該特定控制指令將該另一設定檔中之該等面板參數傳送至該顯示控制器以依據該等面板參數驅動該顯示面板，直到該顯示面板被成功點亮為止。A display system including: A host for running a panel control application; and A display device electrically connected to the host, and the display device includes: A display panel; and A display controller; Wherein, the panel control application program selects a configuration file including a plurality of panel parameters from a database of the host, and sends a specific control command to transmit the panel parameters in the configuration file to the display controller, and The display controller drives the display panel according to the panel parameters; Wherein, the display controller judges whether the display panel is successfully lit according to a state signal from the display panel; Because the display panel is not successfully lit, the panel control application selects another profile from the database, and uses the specific control command to send the panel parameters in the other profile to the display control The controller drives the display panel according to the panel parameters until the display panel is successfully lit. 如申請專利範圍第1項所述之顯示系統，其中該面板控制應用程式係將該顯示控制器之一參數控制韌體寫入該顯示裝置之一緩衝記憶體，且該顯示控制器係基於該參數控制韌體以控制該顯示面板，其中當該顯示面板被成功點亮，該顯示控制器係控制該顯示面板顯示儲存於該緩衝記憶體中的一或多張測試影像。For the display system described in item 1 of the scope of patent application, the panel control application program writes a parameter control firmware of the display controller into a buffer memory of the display device, and the display controller is based on the The parameter control firmware controls the display panel, wherein when the display panel is successfully lit, the display controller controls the display panel to display one or more test images stored in the buffer memory. 如申請專利範圍第2項所述之顯示系統，更包括：一QR碼解碼器，電性連接至該主機，並用以拍攝在該顯示面板所顯示的該測試影像並進行影像辨識，且將影像辨識結果傳送至該主機之該面板控制應用程式，其中該面板控制應用程式更將該影像辨識結果傳送至該顯示控制器以判斷該顯示面板是否可正常顯示該測試影像。For example, the display system described in item 2 of the scope of patent application further includes: a QR code decoder electrically connected to the host, and used to shoot the test image displayed on the display panel and perform image recognition, and the image The identification result is sent to the panel control application of the host, and the panel control application further sends the image identification result to the display controller to determine whether the display panel can display the test image normally. 如申請專利範圍第3項所述之顯示系統，其中當該顯示面板無法正常顯示該測試影像，該顯示控制器係將表示顯示錯誤之一顯示狀態信號傳送至該主機，且該面板控制應用程式係自動調整該顯示面板之一部分的該等面板參數並將調整後之該等面板參數傳送至該顯示控制器以驅動該顯示面板以播放該測試影像。Such as the display system described in item 3 of the scope of patent application, wherein when the display panel fails to display the test image normally, the display controller transmits a display status signal indicating a display error to the host, and the panel controls the application It automatically adjusts the panel parameters of a part of the display panel and transmits the adjusted panel parameters to the display controller to drive the display panel to play the test image. 如申請專利範圍第2項所述之顯示系統，其中該顯示面板包括一或多個列驅動器及一或多個行驅動器，且各列驅動器及各行驅動器係包括一偵測電路，用以偵測該顯示面板所播放的該測試影像之位元錯誤數量，且該顯示控制器係依據該位元錯誤數量以判斷該顯示面板是否可正常顯示該測試影像； 其中當該顯示控制器判斷該顯示面板無法正常顯示該測試影像，該顯示控制器係將表示顯示錯誤之一顯示狀態信號傳送至該主機，且該面板控制應用程式係自動調整該顯示面板之一部分的該等面板參數並將調整後之該等面板參數傳送至該顯示控制器以驅動該顯示面板。For the display system described in item 2 of the scope of patent application, the display panel includes one or more column drivers and one or more row drivers, and each column driver and each row driver includes a detection circuit for detecting The number of bit errors of the test image played by the display panel, and the display controller determines whether the display panel can display the test image normally according to the number of bit errors; When the display controller determines that the display panel cannot display the test image normally, the display controller transmits a display status signal indicating a display error to the host, and the panel control application automatically adjusts a part of the display panel And transmit the adjusted panel parameters to the display controller to drive the display panel. 如申請專利範圍第4項所述之顯示系統，其中當該顯示控制器判斷該顯示面板可正常顯示該測試影像，該面板控制應用程式係將目前所使用的該等面板參數儲存並輸出為一參數設定檔，並整合該參數設定檔及相關驅動程式以編譯出該顯示控制器之一可執行檔。For example, in the display system described in item 4 of the scope of patent application, when the display controller determines that the display panel can display the test image normally, the panel control application stores and outputs the currently used panel parameters as a Parameter setting file, and integrating the parameter setting file and related drivers to compile an executable file of the display controller. 一種面板參數自動調整方法，用於一顯示系統，該顯示系統包括一主機及一顯示裝置，且該顯示裝置包括一顯示控制器及一顯示面板，該方法包括： 從該主機之一資料庫選擇包括複數個面板參數的一設定檔，並發送一特定控制指令將該設定檔中之該等面板參數傳送至該顯示控制器； 利用該顯示控制器依據該等面板參數以驅動該顯示面板； 利用該顯示控制器依據來自該顯示面板之一狀態信號以判斷該顯示面板是否被成功點亮；以及 因應於該顯示面板未被成功點亮，由該資料庫選擇另一設定檔，並利用該特定控制指令將該另一設定檔中之該等面板參數傳送至該顯示控制器以依據該等面板參數驅動該顯示面板，直到該顯示面板被成功點亮為止。A method for automatically adjusting panel parameters is used in a display system. The display system includes a host and a display device, and the display device includes a display controller and a display panel. The method includes: Select a configuration file including a plurality of panel parameters from a database of the host, and send a specific control command to transmit the panel parameters in the configuration file to the display controller; Using the display controller to drive the display panel according to the panel parameters; Using the display controller to determine whether the display panel is successfully lit according to a status signal from the display panel; and Since the display panel is not successfully lit, another profile is selected from the database, and the panel parameters in the other profile are sent to the display controller using the specific control command to be based on the panels The parameters drive the display panel until the display panel is successfully lit. 如申請專利範圍第7項所述之面板參數自動調整方法，其中該主機係將該顯示控制器之一參數控制韌體寫入該顯示裝置之一緩衝記憶體，且該顯示控制器係基於該參數控制韌體以控制該顯示面板，且該方法更包括： 因應於該顯示面板被成功點亮，利用該顯示控制器控制該顯示面板顯示儲存於該緩衝記憶體中的一或多張測試影像。According to the method for automatically adjusting panel parameters described in item 7 of the scope of patent application, the host writes a parameter control firmware of the display controller into a buffer memory of the display device, and the display controller is based on the The parameter control firmware is used to control the display panel, and the method further includes: In response to the display panel being successfully lit, the display controller is used to control the display panel to display one or more test images stored in the buffer memory. 如申請專利範圍第8項所述之面板參數自動調整方法，其中該顯示系統更包括一QR碼解碼器，電性連接至該主機，並用以拍攝在該顯示面板所顯示的該測試影像並進行影像辨識，且將影像辨識結果傳送至該主機之該面板控制應用程式，且該方法更包括： 將該影像辨識結果傳送至該顯示控制器以判斷該顯示面板是否可正常顯示該測試影像。For the panel parameter automatic adjustment method described in item 8 of the scope of patent application, the display system further includes a QR code decoder, which is electrically connected to the host, and used to shoot the test image displayed on the display panel and perform Image recognition, and sending the image recognition result to the panel control application of the host, and the method further includes: The image recognition result is sent to the display controller to determine whether the display panel can display the test image normally. 如申請專利範圍第9項所述之面板參數自動調整方法，更包括： 當該顯示面板無法正常顯示該測試影像，利用該顯示控制器係將表示顯示錯誤之一顯示狀態信號傳送至該主機；以及 利用該主機自動調整該顯示面板之一部分的該等面板參數並將調整後之該等面板參數傳送至該顯示控制器以驅動該顯示面板以播放該測試影像。As described in item 9 of the scope of patent application, the automatic adjustment method of panel parameters includes: When the display panel cannot display the test image normally, using the display controller to transmit a display status signal indicating a display error to the host; and The host is used to automatically adjust the panel parameters of a part of the display panel and transmit the adjusted panel parameters to the display controller to drive the display panel to play the test image.
TW108148539A 2019-12-31 2019-12-31 Display system and method of automatically adjusting display-panel parameters TWI780391B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW108148539A TWI780391B (en) 2019-12-31 2019-12-31 Display system and method of automatically adjusting display-panel parameters
CN202011579331.7A CN113126946B (en) 2019-12-31 2020-12-28 Display system and automatic panel parameter adjusting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW108148539A TWI780391B (en) 2019-12-31 2019-12-31 Display system and method of automatically adjusting display-panel parameters

Publications (2)

Publication Number Publication Date
TW202127243A true TW202127243A (en) 2021-07-16
TWI780391B TWI780391B (en) 2022-10-11

Family

ID=76772234

Family Applications (1)

Application Number Title Priority Date Filing Date
TW108148539A TWI780391B (en) 2019-12-31 2019-12-31 Display system and method of automatically adjusting display-panel parameters

Country Status (2)

Country Link
CN (1) CN113126946B (en)
TW (1) TWI780391B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114255603B (en) * 2021-12-29 2023-09-15 卡莱特云科技股份有限公司 LED display screen display method, control device and system applied to traffic

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030117382A1 (en) * 2001-12-07 2003-06-26 Pawlowski Stephen S. Configurable panel controller and flexible display interface
TW200733027A (en) * 2006-02-17 2007-09-01 Novatek Microelectronics Corp Test system for testing a liquid crystal display module and method thereof
JP5344846B2 (en) * 2008-03-31 2013-11-20 ゴールドチャームリミテッド Display panel control device, liquid crystal display device, electronic device, and display panel drive control method
TWI438760B (en) * 2011-07-20 2014-05-21 Novatek Microelectronics Corp Display panel driving apparatus and operation method thereof and source driver thereof
CN102955679A (en) * 2011-08-24 2013-03-06 联咏科技股份有限公司 Data transmission method and display driving system thereof
CN106469070A (en) * 2015-08-18 2017-03-01 冠捷投资有限公司 The method of panel parameter self-regeneration
TWI643060B (en) * 2017-04-21 2018-12-01 精英電腦股份有限公司 Automatic image monitoring method

Also Published As

Publication number Publication date
CN113126946B (en) 2023-06-09
TWI780391B (en) 2022-10-11
CN113126946A (en) 2021-07-16

Similar Documents

Publication Publication Date Title
US6421792B1 (en) Data processing system and method for automatic recovery from an unsuccessful boot
US20140223159A1 (en) Booting method and electronic device
TWI741556B (en) Driving apparatus and operation method thereof
US20100097357A1 (en) Computer and method for controlling external display device
US20070168738A1 (en) Power-on error detection system and method
US20200225296A1 (en) Display module test platform
US20090300588A1 (en) Method and apparatus for acquiring definitions of debug code of basic input/output system
WO2021103146A1 (en) Display panel drive system and display device
US20090217105A1 (en) Debug device for embedded systems and method thereof
US20210034452A1 (en) Displaying pre-boot error messages
US20140195697A1 (en) Apparatus and method for detecting functions of video card
US10691569B2 (en) System and method for testing a data storage device
US7747909B2 (en) Debug card
TWI780391B (en) Display system and method of automatically adjusting display-panel parameters
CN111800658A (en) Chip parameter writing method, television and storage medium
US20120144181A1 (en) Motherboard and method for displaying host system parameter
CN106980569B (en) Method for representing BIOS POST progress by USB keyboard lamp
US7213159B2 (en) Method for testing and verifying power management features of computer system
KR100621095B1 (en) Booting-system and booting-method for initializing peripherals
TWI436203B (en) Testing method for automatically rebooting a motherboard and recording related debug information and rebooting device thereof
KR20190116029A (en) System on chip and operating method thereof
CN105068835B (en) Mobile terminal and debugging information display method thereof
CN112634977B (en) Chip with debug memory interface and debug method thereof
US10425545B2 (en) Printing apparatus and method for controlling the same
CN113467729B (en) Electronic device and multi-screen display method

Legal Events

Date Code Title Description
GD4A Issue of patent certificate for granted invention patent