TWI543135B - Driving apparatus for display - Google Patents
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- TWI543135B TWI543135B TW101122643A TW101122643A TWI543135B TW I543135 B TWI543135 B TW I543135B TW 101122643 A TW101122643 A TW 101122643A TW 101122643 A TW101122643 A TW 101122643A TW I543135 B TWI543135 B TW I543135B
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Description
本發明是有關於一種顯示器的驅動裝置，且特別是有關於一種顯示器的驅動裝置的控制命令的傳輸方法。 The present invention relates to a driving device for a display, and more particularly to a method for transmitting a control command of a driving device of a display.
隨著電子科技的進步，電子產品已成為人們生活中不可獲缺的工具，而在電子產品上提供優質化的人機互動介面，又是現今電子產品再設計上的一個重要課題。其中，提供高品質的顯示裝置，是使電子產品更具有競爭力的一個重要的方式。 With the advancement of electronic technology, electronic products have become an indispensable tool in people's lives, and providing high-quality human-computer interaction interface in electronic products is an important issue in the redesign of electronic products today. Among them, providing high-quality display devices is an important way to make electronic products more competitive.
在習知的顯示裝置的動作中，顯示驅動電路需要接收顯示的資料以及控制命令，來使顯示驅動電路執行相對應的動作。其中，在習知的顯示裝置中，可以透過對其顯示驅動電路所屬的晶片上的一個或多個接腳上給于適度的電壓來進行控制命令的傳送，或者由顯示裝置中的時序控制器(timing controller,TCON)來傳送多個位元的信號至顯示驅動電路來進行控制命令的傳送。這些習知的控制命令的傳送方式常需要很多的信號線或腳位來對顯示裝置中的多個顯示驅動電路進行相對應的設定，需要耗出大量的佈線面積。 In the operation of the conventional display device, the display drive circuit needs to receive the displayed data and the control command to cause the display drive circuit to perform a corresponding action. Wherein, in the conventional display device, the control command can be transmitted by applying a moderate voltage to one or more pins on the wafer to which the display drive circuit belongs, or by a timing controller in the display device. A timing controller (TCON) transmits a signal of a plurality of bits to a display driving circuit for transmitting a control command. The transmission methods of these conventional control commands often require a large number of signal lines or pins to correspondingly set a plurality of display drive circuits in the display device, and a large amount of wiring area is required.
習知技術也提供透過將控制命令以及顯示資料以序列的方式在相同的資料匯流排進行傳輸的方式，這種習知的方式，由於在顯示裝置所需要的顯示資料的傳輸頻率較 高，而致使控制命令也需要被高速的進行傳輸，造成控制命令傳輸的正確率降低。 The prior art also provides a way to transmit control commands and display data in the same data bus in a sequential manner, which is due to the transmission frequency of the display data required by the display device. High, and the control command also needs to be transmitted at a high speed, resulting in a decrease in the correct rate of control command transmission.
本發明提供一種顯示器的驅動裝置，可不受顯示資料的傳送動作的影響，進行控制器與顯示驅動模組間的控制命令的傳送動作。 The present invention provides a display driving device that can perform a transfer operation of a control command between a controller and a display drive module without being affected by a transfer operation of display data.
本發明提出一種顯示器的驅動裝置，包括控制器以及顯示驅動模組。控制器具有資料傳輸介面以及命令傳輸介面。顯示驅動模組透過資料傳輸介面以及命令傳輸介面耦接控制器，其中，控制器與顯示驅動模組間藉由命令傳輸介面進行至少一控制命令的傳收動作，且命令傳輸介面僅提供控制器與該顯示驅動模組間的控制命令的傳收動作。 The invention provides a driving device for a display, comprising a controller and a display driving module. The controller has a data transmission interface and a command transmission interface. The display driver module is coupled to the controller through the data transmission interface and the command transmission interface, wherein the controller and the display driver module perform at least one control command transmission operation through the command transmission interface, and the command transmission interface only provides the controller. The transmission operation of the control command with the display driver module.
在本發明一實施例中，上述之控制器藉由資料傳輸介面傳送多數個顯示資料至顯示驅動模組。 In an embodiment of the invention, the controller transmits a plurality of display materials to the display driver module through the data transmission interface.
在本發明一實施例中，上述之資料傳輸介面的傳輸頻率高於命令傳輸介面的傳輸頻率。 In an embodiment of the invention, the transmission frequency of the data transmission interface is higher than the transmission frequency of the command transmission interface.
在本發明一實施例中，上述之顯示驅動模組包括多數個顯示驅動電路。 In an embodiment of the invention, the display driving module includes a plurality of display driving circuits.
在本發明一實施例中，上述之命令傳輸介面包括多數組命令傳輸單元，各顯示驅動電路分別透過相對應的各命令傳輸單元與控制器進行控制命令的傳收動作。 In an embodiment of the invention, the command transmission interface includes a multi-array command transmission unit, and each display drive circuit performs a transmission operation of the control command through the corresponding command transmission unit and the controller.
在本發明一實施例中，上述之命令傳輸介面具有共同命令傳輸匯流排，共同命令傳輸匯流排共同耦接顯示驅動 電路。 In an embodiment of the invention, the command transmission interface has a common command transmission bus, and the common command transmission bus is coupled to the display driver. Circuit.
在本發明一實施例中，上述之命令傳輸介面具有命令傳送單元以及命令接收單元。命令傳送單元耦接至顯示驅動電路的第一顯示驅動電路，命令接收單元耦接至顯示驅動電路的第二顯示驅動電路，其他的顯示驅動電路則串接在該一及第二顯示驅動電路間。各顯示驅動電路由命令傳送單元接收來自於控制器的控制命令，各顯示驅動電路由命令接收單元來傳送控制命令至控制器。 In an embodiment of the invention, the command transmission interface has a command transmission unit and a command reception unit. The command transmission unit is coupled to the first display driving circuit of the display driving circuit, the command receiving unit is coupled to the second display driving circuit of the display driving circuit, and the other display driving circuits are serially connected between the first and second display driving circuits. . Each display driving circuit receives a control command from the controller by a command transmitting unit, and each display driving circuit transmits a control command to the controller by the command receiving unit.
在本發明一實施例中，上述之命令傳輸介面包括至少一命令傳輸線。命令傳輸線用以傳輸依據控制命令與時脈信號進行編碼所產生的信號。 In an embodiment of the invention, the command transmission interface includes at least one command transmission line. The command transmission line is used to transmit a signal generated by encoding according to a control command and a clock signal.
在本發明一實施例中，上述之命令傳輸介面包括至少一命令傳輸線以及相對應的至少一時脈信號傳輸線。 In an embodiment of the invention, the command transmission interface includes at least one command transmission line and a corresponding at least one clock signal transmission line.
基於上述，本發明藉由提供命令傳輸介面，來使控制器與顯示驅動模組間的控制命令的傳送動作可以獨立於顯示資料的傳送動作外。如此一來，控制器與顯示驅動模組間的控制命令的傳送動作可以不受限於顯示資料所需要的高傳輸頻率，控制命令可以更準確的在控制器與顯示驅動模組間進行傳輸，降低驅動裝置可能因控制命令傳送錯誤所產生的誤動作。 Based on the above, the present invention provides a command transmission interface to enable the transfer of control commands between the controller and the display driver module independently of the transfer operation of the display data. In this way, the transmission action of the control command between the controller and the display driver module can be not limited to the high transmission frequency required for displaying the data, and the control command can be more accurately transmitted between the controller and the display driver module. Reduce the malfunction of the drive unit that may be caused by a control command transmission error.
為讓本發明之上述特徵和優點能更明顯易懂，下文特舉實施例，並配合所附圖式作詳細說明如下。 The above described features and advantages of the present invention will be more apparent from the following description.
請參照圖1，圖1繪示本發明一實施例的顯示器的驅動裝置100的示意圖。驅動裝置100包括控制器110以及顯示驅動模組120。控制器110具有資料傳輸介面112以及命令傳輸介面111。顯示驅動模組120則透過資料傳輸介面112以及命令傳輸介面111來耦接至控制器110。其中，控制器110與顯示驅動模組120間藉由命令傳輸介面111進行至少一控制命令的傳收動作，且命令傳輸介面111僅提供控制器110與顯示驅動模組120間的控制命令的傳收動作。 Please refer to FIG. 1. FIG. 1 is a schematic diagram of a driving device 100 for a display according to an embodiment of the present invention. The driving device 100 includes a controller 110 and a display driving module 120. The controller 110 has a data transmission interface 112 and a command transmission interface 111. The display driver module 120 is coupled to the controller 110 through the data transmission interface 112 and the command transmission interface 111. The controller 110 and the display driver module 120 perform at least one control command transmission operation by using the command transmission interface 111, and the command transmission interface 111 only provides the transmission of the control command between the controller 110 and the display driver module 120. Take action.
值得注意的是，控制器110以及顯示驅動模組120間所進行的顯示資料的傳輸動作，是獨立的在資料傳輸介面112中所進行的。也就是說，控制器110以及顯示驅動模組120間所進行的顯示資料的傳輸動作與控制器110以及顯示驅動模組120間所進行的控制命令傳輸動作是不相干涉的，其中，命令傳輸介面111中所進行的控制命令的傳輸頻率，並不受限於資料傳輸介面112中所進行顯示資料的傳輸頻率。在控制命令的穩定傳輸的考量上，命令傳輸介面111中所進行的控制命令的傳輸頻率可以被設定為低於資料傳輸介面112中所進行顯示資料的傳輸頻率。 It should be noted that the transmission of display data between the controller 110 and the display driver module 120 is performed independently in the data transmission interface 112. That is to say, the transmission operation of the display data between the controller 110 and the display driving module 120 does not interfere with the control command transmission operation performed between the controller 110 and the display driving module 120, wherein the command transmission The transmission frequency of the control command performed in the interface 111 is not limited to the transmission frequency of the display material performed in the data transmission interface 112. In the consideration of the stable transmission of the control command, the transmission frequency of the control command performed in the command transmission interface 111 can be set lower than the transmission frequency of the display material performed in the data transmission interface 112.
另外，在本實施例中，命令傳輸介面111是為一個雙向的傳輸介面，也就是說，控制器110可以透過命令傳輸介面111將控制命令傳向顯示驅動模組120，而顯示驅動模組120也可以透過命令傳輸介面111將控制命令回傳至 控制器110。 In addition, in the embodiment, the command transmission interface 111 is a bidirectional transmission interface, that is, the controller 110 can transmit control commands to the display driving module 120 through the command transmission interface 111, and the display driving module 120 The control command can also be transmitted back to the command transmission interface 111. Controller 110.
附帶一提的，顯示驅動模組120中所包括的例如為源極驅動電路以及閘極驅動電路。 Incidentally, the display driving module 120 includes, for example, a source driving circuit and a gate driving circuit.
以下請參照圖2A~圖2C，圖2A~圖2C分別繪示本發明另一實施例的顯示器的驅動裝置200的多個不同實施方式的示意圖。其中，驅動裝置200包括控制器210以及顯示驅動模組220。顯示驅動模組220則包括多個顯示驅動電路221~22N(N為正整數)。控制器210與顯示驅動模組220間透過命令傳輸介面221來進行控制命令的傳輸。另外，控制器210與顯示驅動模組220間用以進行顯示資料傳輸的資料傳輸介面並未繪示於圖2A~圖2C中。 Referring to FIG. 2A to FIG. 2C , FIG. 2A to FIG. 2C are respectively schematic diagrams showing different embodiments of the driving device 200 of the display according to another embodiment of the present invention. The driving device 200 includes a controller 210 and a display driving module 220. The display driving module 220 includes a plurality of display driving circuits 221 22 22N (N is a positive integer). The controller 210 and the display driver module 220 transmit a control command through the command transmission interface 221. In addition, the data transmission interface between the controller 210 and the display driver module 220 for displaying data transmission is not shown in FIG. 2A to FIG. 2C.
在此請先參照圖2A，其中，命令傳輸介面221包括多數個命令傳輸單元CMD1~CMDN，且顯示驅動電路221~22N與控制器210間是分別透過命令傳輸單元CMD1~CMDN以點對點的方式來相互連接。具體來說，控制器210分別透過命令傳輸單元CMD1~CMDN來與顯示驅動電路221~22N間，進行控制命令的傳輸動作。 Referring to FIG. 2A, the command transmission interface 221 includes a plurality of command transmission units CMD1 CMCMDN, and the display drive circuits 221 22 22N and the controller 210 are respectively connected in a point-to-point manner through the command transmission units CMD1 CM CMDN. Connected to each other. Specifically, the controller 210 performs a control command transmission operation between the display drive circuits 221 and 22N via the command transfer units CMD1 to CMDN.
在本實施方式中，控制器210可以透過選擇的命令傳輸單元CMD1~CMDN的其中之一來傳送控制命令以設定選定的命令傳輸單元(例如命令傳輸單元CMD2)來設定對應的顯示驅動電路(例如顯示驅動電路222)。當然，若控制器210要對多數個顯示驅動電路進行設定時，僅需透過所要設定的顯示驅動電路對應的命令傳輸單元進行一次性的控制命令的傳輸，就可以簡單的完成設定的動作。 In this embodiment, the controller 210 may transmit a control command through one of the selected command transmission units CMD1 CMCMDN to set a selected command transmission unit (eg, the command transmission unit CMD2) to set a corresponding display driving circuit (for example, Display drive circuit 222). Of course, if the controller 210 is to set a plurality of display drive circuits, the set operation may be simply performed by transmitting a one-time control command through the command transmission unit corresponding to the display drive circuit to be set.
另外，顯示驅動電路221~22N也可以透過命令傳輸單元CMD1~CMDN來分別傳送控制命令至控制器210，以達成顯示驅動電路221~22N與控制器210間雙向溝通的功能。 In addition, the display drive circuits 221 22 22N may respectively transmit control commands to the controller 210 through the command transfer units CMD1 CM CMDN to achieve a two-way communication between the display drive circuits 221 22 22N and the controller 210 .
接著請參照圖2B，其中，命令傳輸介面221具有共同命令傳輸匯流排CMDB，共同命令傳輸匯流排CMDB共同耦接顯示驅動電路221~22N。當控制器210藉由共同命令傳輸匯流排CMDB來進行控制命令的傳送動作時，控制器210可以透過在所傳送的控制命令中夾帶識別碼資料，以提供各顯示驅動電路221~22N來辨識並獲知是否要依據所接收到的控制命令進行相關的設定。 Referring to FIG. 2B, the command transmission interface 221 has a common command transmission bus CMDB, and the common command transmission bus CMDB is coupled to the display driving circuits 221 22 22N. When the controller 210 performs the transfer operation of the control command by using the common command transmission bus CMDB, the controller 210 can provide the display drive circuits 221 22 22N by recognizing the identification code data in the transmitted control command. Know if you want to make relevant settings based on the received control commands.
舉例來說，各顯示驅動電路221~22N可以內建儲存一個識別比對碼，例如顯示驅動電路221~22N的識別比對碼分別等於“1”~”N”。當控制器210所傳送的控制命令僅到對顯示驅動電路222進行設定時，控制器210可以在控制命令中夾帶例如等於“2”的識別碼資料。而顯示驅動電路221~22N接收到這個識別碼資料後，顯示驅動電路221~22N分別依據其所內建的識別比對碼來和所接收到的識別碼資料進行比對。其中，顯示驅動電路222外的所有顯示驅動電路會因為其識別比對碼與識別碼資料不相同而忽略所接收的控制命令，而僅有顯示驅動電路222(識別比對碼與識別碼資料相同)會依據所接收的控制命令進行設定動作。 For example, each of the display driving circuits 221 22 22N can internally store and store an identification comparison code. For example, the identification comparison codes of the display driving circuits 221 22 22N are respectively equal to “1” to “N”. When the control command transmitted by the controller 210 is only to set the display drive circuit 222, the controller 210 may entrain the identification code data equal to "2", for example, in the control command. After the display driving circuits 221 22 22N receive the identification code data, the display driving circuits 221 22 22N respectively compare the received identification code data according to the built-in identification comparison code. Wherein, all the display driving circuits outside the display driving circuit 222 ignore the received control command because the identification matching code and the identification code data are different, and only the display driving circuit 222 (the identification comparison code is the same as the identification code data). The setting action is performed according to the received control command.
以下則請參照圖2C，其中，命令傳輸介面221包括 命令傳送單元CMDOUT以及命令接收單元CMDIN，其中，命令傳送單元CMDOUT用以傳送由控制器210發送出的控制命令至顯示驅動模組220，而命令接收單元CMDIN則用以傳送由顯示驅動模組220傳至控制器210的控制命令。另外，本實施例中的顯示驅動電路221~22N依序串連耦接，而其中的第一顯示驅動電路221透過命令傳送單元CMDOUT耦接至控制器210，其中的第二顯示驅動電路22N則透過命令接收單元CMDIN耦接至控制器210。 Please refer to FIG. 2C below, wherein the command transmission interface 221 includes The command transmitting unit CMDOUT and the command receiving unit CMDOUT are configured to transmit the control command sent by the controller 210 to the display driving module 220, and the command receiving unit CMDIN is used to transmit the display driving module 220. Control commands passed to controller 210. In addition, the display driving circuits 221 22 22N in this embodiment are sequentially coupled in series, and the first display driving circuit 221 is coupled to the controller 210 through the command transmitting unit CMDOUT, wherein the second display driving circuit 22N is It is coupled to the controller 210 through the command receiving unit CMDIN.
在控制器210執行控制命令的傳送動作時，控制器210可以藉由命令傳送單元CMDOUT將控制命令傳送至第一顯示驅動電路221，再由第一顯示驅動電路221逐級的將控制命令傳送到所要傳送的顯示驅動電路中。相對的，當顯示驅動電路221~22N要回傳控制命令至控制器210中時，顯示驅動電路則將控制命令往命令接收單元CMDIN所在的顯示驅動電路22N的方向進行逐級的傳遞，最後再由命令接收單元CMDIN將控制命令傳送至控制器210。 When the controller 210 performs the transfer operation of the control command, the controller 210 may transmit the control command to the first display drive circuit 221 by the command transfer unit CMDOUT, and then transfer the control command to the first display drive circuit 221 step by step. In the display driver circuit to be transmitted. In contrast, when the display driving circuits 221 22 22N are to return the control command to the controller 210, the display driving circuit transmits the control command to the direction of the display driving circuit 22N where the command receiving unit CMDIN is located, and finally, The control command is transmitted to the controller 210 by the command receiving unit CMDIN.
以下請參照圖3A以及圖3B，圖3A以及圖3B繪示本發明實施例的命令傳遞的波形圖。在圖3A中，本發明實施例中的命令傳輸單元可以由命令傳輸線CMDS以及時脈信號傳輸線CKS所構成。時脈信號傳輸線CKS所傳遞的時脈信號用來做為取樣命令傳輸線CMDS上所傳遞的資料的依據。在本實施例中，命令傳輸線CMDS在時間區間TP中傳遞用來作為命令傳輸線CMDS以及時脈信號 傳輸線CKS間信號同步的參考依據的脈衝信號，而命令傳輸線CMDS在時間區間TCMD中則傳送控制命令的資料值。 Please refer to FIG. 3A and FIG. 3B. FIG. 3A and FIG. 3B are diagrams showing waveforms of command transmission according to an embodiment of the present invention. In FIG. 3A, the command transmission unit in the embodiment of the present invention may be composed of a command transmission line CMDS and a clock signal transmission line CKS. The clock signal transmitted by the clock signal transmission line CKS is used as the basis for the data transmitted on the sampling command transmission line CMDS. In the present embodiment, the command transmission line CMDS is transmitted in the time interval TP as a command transmission line CMDS and a clock signal. The reference signal of the signal synchronization between the transmission lines CKS is based on the pulse signal, and the command transmission line CMDS transmits the data value of the control command in the time interval TCMD.
在圖3B中，命令傳輸單元僅包括單一條的命令傳輸線CMDS。這種單一條的命令傳輸線CMDS上傳輸依據所要傳送的控制命令與時脈信號進行編碼所產生的信號。這個編碼的方式，則可以透過例如時脈資料回復(Clock and Data Recovery,CRD)電路或是曼徹斯特(Manchester)的編碼方式來產生。關於時脈資料回復電路以及曼徹斯特編碼方式的實施細節為本領域具通常知識者所熟知的技術，在此恕不多贅述。 In FIG. 3B, the command transmission unit includes only a single command transmission line CMDS. The single command transmission line CMDS transmits a signal generated by encoding according to a control command to be transmitted and a clock signal. This encoding method can be generated by, for example, a Clock and Data Recovery (CRD) circuit or a Manchester encoding method. The details of the implementation of the clock data recovery circuit and the Manchester coding method are well known to those skilled in the art and will not be described here.
綜上所述，本發明藉由在顯示器的驅動裝置的控制器及顯示驅動模組間設置命令傳輸介面，並使命令傳輸介面不受顯示資料傳輸的影響，獨立進行控制器及顯示驅動模組間的控制命令的傳輸動作。如此一來，控制器及顯示驅動模組間的控制命令的傳輸動作可以不受限於顯示資料的高傳輸數率的影響，可以使控制命令有效且準確的傳送到控制器或顯示驅動模組中，降低驅動裝置所可能造成的誤動作現象。 In summary, the present invention independently sets the controller and the display driver module by setting a command transmission interface between the controller of the display device and the display driver module, and making the command transmission interface unaffected by the display data transmission. The transfer action of the control command between. In this way, the transmission action of the control command between the controller and the display driver module can be transmitted to the controller or the display driver module effectively and accurately without being affected by the high transmission rate of the display data. In the middle, reduce the malfunction caused by the drive unit.
雖然本發明已以實施例揭露如上，然其並非用以限定本發明，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，當可作些許之更動與潤飾，故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 has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.
100‧‧‧驅動裝置 100‧‧‧ drive
110‧‧‧控制器 110‧‧‧ Controller
120‧‧‧顯示驅動模組 120‧‧‧display driver module
112‧‧‧資料傳輸介面 112‧‧‧Data transmission interface
111‧‧‧命令傳輸介面 111‧‧‧Command transmission interface
221~22N‧‧‧顯示驅動電路 221~22N‧‧‧Display drive circuit
CMD1~CMDN‧‧‧命令傳輸單元 CMD1~CMDN‧‧‧Command Transmission Unit
CMDB‧‧‧共同命令傳輸匯流排 CMDB‧‧‧Common Command Transmission Bus
CMDOUT‧‧‧命令傳送單元 CMDOUT‧‧‧Command Transfer Unit
CMDIN‧‧‧命令接收單元 CMDIN‧‧‧ command receiving unit
CMDS‧‧‧命令傳輸線 CMDS‧‧‧ command transmission line
CKS‧‧‧時脈信號傳輸線 CKS‧‧‧ clock signal transmission line
TCMD、TP‧‧‧時間區間 TCMD, TP‧‧‧ time interval
圖1繪示本發明一實施例的顯示器的驅動裝置100的示意圖。 FIG. 1 is a schematic diagram of a driving device 100 for a display according to an embodiment of the invention.
圖2A~圖2C分別繪示本發明另一實施例的顯示器的驅動裝置200的多個不同實施方式的示意圖。 2A-2C are schematic views respectively showing different embodiments of a driving device 200 for a display according to another embodiment of the present invention.
圖3A以及圖3B繪示本發明實施例的命令傳遞的波形圖。 3A and 3B are waveform diagrams showing command transmission according to an embodiment of the present invention.
100‧‧‧驅動裝置 100‧‧‧ drive
110‧‧‧控制器 110‧‧‧ Controller
120‧‧‧顯示驅動模組 120‧‧‧display driver module
112‧‧‧資料傳輸介面 112‧‧‧Data transmission interface
111‧‧‧命令傳輸介面 111‧‧‧Command transmission interface
Claims (8)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101122643A TWI543135B (en) | 2012-06-25 | 2012-06-25 | Driving apparatus for display |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101122643A TWI543135B (en) | 2012-06-25 | 2012-06-25 | Driving apparatus for display |
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| Publication Number | Publication Date |
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| TW201401242A TW201401242A (en) | 2014-01-01 |
| TWI543135B true TWI543135B (en) | 2016-07-21 |
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| KR20220017249A (en) * | 2020-08-04 | 2022-02-11 | 엘지디스플레이 주식회사 | Interface Device And Method Of Display Device Including The Same |
| TWI750979B (en) * | 2020-12-30 | 2021-12-21 | 新唐科技股份有限公司 | Control device and display device for reducing usage pin of component |
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