TWM650787U - Control system for led display and display device - Google Patents

Control system for led display and display device Download PDF

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TWM650787U
TWM650787U TW112209231U TW112209231U TWM650787U TW M650787 U TWM650787 U TW M650787U TW 112209231 U TW112209231 U TW 112209231U TW 112209231 U TW112209231 U TW 112209231U TW M650787 U TWM650787 U TW M650787U
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parallel
signal
led
group
display screen
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于海洋
胡龍山
黃志正
樊磊
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大陸商集創北方（成都）科技有限公司
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Abstract

The present disclosure provides a control system for LED display and a display device. The control system includes a scan card and a LED driving chip coupled with the scan card. The scan card includes a processor, a buffer, and a signal transmitter. The LED driving chip includes a serial-to-parallel conversion module, a digital module, a driving module, and a parallel-to-serial conversion module. The present disclosure is capable of realizing cascading of the LED driving chip on basis of improving an integration degree and a signal transmission rate of the driving module.

Description

LED顯示屏控制系統及顯示裝置 LED display control system and display device

本創作涉及顯示技術領域，具體涉及一種LED顯示屏控制系統及顯示裝置。 This creation relates to the field of display technology, specifically an LED display screen control system and a display device.

發光二極體(Light Emitting Diode，LED)是利用PN結中的少數載流子和多數載流子複合發光的原理工作的二極體。LED顯示裝置通過控制光源自身的亮度改變顯示灰階，與液晶顯示裝置相比，LED顯示裝置的功耗低，刷新速度快，視角廣，可以用於強光照環境和低溫環境。因此，LED顯示裝置特別適合於用作室外顯示屏，用於顯示文字、圖像和視頻。 Light Emitting Diode (LED) is a diode that uses the principle of recombination of minority carriers and majority carriers in a PN junction to emit light. LED display devices change the display gray scale by controlling the brightness of the light source itself. Compared with liquid crystal display devices, LED display devices have low power consumption, fast refresh speed, and wide viewing angles. They can be used in strong light environments and low temperature environments. Therefore, LED display devices are particularly suitable for use as outdoor display screens for displaying text, images and videos.

LED顯示裝置主要通過驅動模組驅動LED顯示屏中的LED燈板，但是現有的驅動模組存在模組體積較大、集成度較低，且在串平行轉換時信號傳輸易受干擾等缺陷。 LED display devices mainly drive LED light panels in LED displays through drive modules. However, existing drive modules have defects such as large module size, low integration, and signal transmission is susceptible to interference during serial-to-parallel conversion.

因此，有必要提供改進的技術方案以克服現有技術中存在的以上技術問題。 Therefore, it is necessary to provide improved technical solutions to overcome the above technical problems existing in the prior art.

為了解決上述技術問題，本創作提供了一種LED顯示屏控制系統及顯示裝置，可以解決信號傳輸速率慢、傳輸易受干擾的問題，並且便於實現晶片級聯。 In order to solve the above technical problems, this invention provides an LED display control system and a display device, which can solve the problems of slow signal transmission rate and easy transmission interference, and facilitate the realization of chip cascade.

根據本創作第一方面，提供了一種LED顯示屏控制系統，包括：掃描卡以及與所述掃描卡耦接的LED驅動晶片， According to the first aspect of this invention, an LED display screen control system is provided, including: a scanning card and an LED driver chip coupled to the scanning card,

所述掃描卡中集成有： The scanning card is integrated with:

處理器，用於對接收到的參數數據及圖像數據進行數據處理，輸出驅動信號組和顯示數據組； A processor, used for data processing of received parameter data and image data, and outputting a driving signal group and a display data group;

緩衝器，與所述處理器耦接，接收所述驅動信號組和所述顯示數據組，輸出串行差分信號組； A buffer, coupled to the processor, receives the driving signal group and the display data group, and outputs a serial differential signal group;

信號發送器，與所述緩衝器耦接，用於將所述串行差分信號組傳輸至所述LED驅動晶片； A signal transmitter coupled to the buffer for transmitting the serial differential signal group to the LED driver chip;

所述LED驅動晶片中集成有： The LED driver chip is integrated with:

串並轉換模組，接收所述串行差分信號組，輸出並行驅動信號組和並行顯示數據組； A serial-to-parallel conversion module receives the serial differential signal group and outputs a parallel driving signal group and a parallel display data group;

數位模組，與所述串並轉換模組耦接，用於對接收到的並行驅動信號組和並行顯示數據組進行處理和編碼； A digital module, coupled to the serial-to-parallel conversion module, used to process and encode the received parallel drive signal group and parallel display data group;

驅動模組，與所述數位模組耦接，接收處理後的並行驅動信號組和並行顯示數據組以驅動LED顯示屏進行圖像顯示； A driving module, coupled to the digital module, receives the processed parallel driving signal group and the parallel display data group to drive the LED display screen for image display;

並串轉換模組，與所述數位模組耦接，接收編碼後的並行驅動信號組和並行顯示數據組，輸出串行差分信號組。 The parallel-to-serial conversion module is coupled to the digital module, receives the encoded parallel drive signal group and the parallel display data group, and outputs the serial differential signal group.

可選地，所述LED顯示屏控制系統中所述LED驅動晶片的數量為至少兩個，該至少兩個所述LED驅動晶片級聯設置。 Optionally, the number of LED driving wafers in the LED display screen control system is at least two, and the at least two LED driving wafers are arranged in cascade.

可選地，所述掃描卡中還集成有： Optionally, the scanning card is also integrated with:

模式切換模組，用於根據用戶指令輸出第一模式切換信號和第二模式切換信號的其中之一，其中，所述第一模式切換信號用於控制所述掃描卡工作於電晶體-電晶體邏輯(Transistor-Transistor Logic，TTL)模式，所述第二模式切換信號用於控制所述掃描卡工作於低電壓差分信號(Low Voltage Differential Signaling，LVDS)模式。 A mode switching module configured to output one of a first mode switching signal and a second mode switching signal according to user instructions, wherein the first mode switching signal is used to control the scanning card to operate in a transistor-transistor mode. Logic (Transistor-Transistor Logic, TTL) mode, the second mode switching signal is used to control the scanning card to operate in a low voltage differential signal (Low Voltage Differential Signaling, LVDS) mode.

可選地，所述信號發送器與所述模式切換模組耦接，接收所述第一模式切換信號和所述第二模式切換信號的其中之一， Optionally, the signal transmitter is coupled to the mode switching module and receives one of the first mode switching signal and the second mode switching signal,

所述第一模式切換信號用於控制所述信號發送器輸出並行驅動信號組和並行顯示數據組；所述第二模式切換信號用於控制所述信號發送器輸出所述串行差分信號組。 The first mode switching signal is used to control the signal transmitter to output a parallel driving signal group and a parallel display data group; the second mode switching signal is used to control the signal transmitter to output the serial differential signal group.

可選地，所述串並轉換模組和所述並串轉換模組還接收使能信號，所述使能信號用於控制所述串並轉換模組和所述並串轉換模組的開啟與關閉，以控制所述LED驅動晶片在LVDS模式和TTL模式之間切換。 Optionally, the serial-to-parallel conversion module and the parallel-to-serial conversion module also receive an enable signal, and the enable signal is used to control the opening of the serial-to-parallel conversion module and the parallel-to-serial conversion module. and off to control the LED driver chip to switch between LVDS mode and TTL mode.

可選地，所述並行驅動信號組和所述並行顯示數據組為TTL信號組。 Optionally, the parallel driving signal group and the parallel display data group are TTL signal groups.

可選地，所述串行差分信號組為LVDS信號組。 Optionally, the serial differential signal group is an LVDS signal group.

可選地，所述串行差分信號組為mini-LVDS信號組。 Optionally, the serial differential signal group is a mini-LVDS signal group.

根據本創作第二方面，提供了一種顯示裝置，包括： According to the second aspect of this invention, a display device is provided, including:

顯示屏；以及 display screen; and

本創作任一項實施例中所述的LED顯示屏控制系統，用於根據參數數據及圖像數據驅動所述顯示屏。 The LED display screen control system described in any embodiment of this invention is used to drive the display screen according to parameter data and image data.

可選地，所述顯示屏包括LED顯示屏、主動矩陣有機發光二極體(Active-Matrix Light Emitting Diode，AMOLED)顯示屏、微發光二極體(Micro Light Emitting Diode，Micro LED)顯示屏或次毫米發光二極體(Mini Light Emitting Diode，Mini LED)顯示屏。 Optionally, the display screen includes an LED display screen, an Active-Matrix Light Emitting Diode (AMOLED) display screen, a Micro Light Emitting Diode (Micro LED) display screen, or Sub-millimeter light emitting diode (Mini Light Emitting Diode, Mini LED) display.

本創作的有益效果至少包括： The beneficial effects of this creation include at least:

本創作實施例在控制系統中，將信號發送器和處理器集成了一個掃描卡中，將串並轉換模組、數位模組、並串轉換模組和驅動模組集成在了一個LED驅動晶片中，能夠減少信號在傳輸過程中的阻抗和干擾，也提高了集成度，能夠達到減小驅動模組的體積，提升LED顯示屏的顯示效果的目的；此外，由於在每個LED驅動晶片中同時集成有串並轉換模組和並串轉換模組，也便於LED驅動晶片在以串行差分信號組的格式高速的傳輸顯示數據組 與驅動信號組時，實現多晶片的級聯。 In the control system of this creative embodiment, the signal transmitter and processor are integrated into a scanning card, and the serial-to-parallel conversion module, digital module, parallel-to-serial conversion module and driver module are integrated into an LED driver chip , it can reduce the impedance and interference during the signal transmission process, and also improve the integration level, which can achieve the purpose of reducing the size of the drive module and improving the display effect of the LED display; in addition, because in each LED driver chip At the same time, the serial-to-parallel conversion module and the parallel-to-serial conversion module are integrated, which also facilitates the LED driver chip to transmit the display data group at high speed in the format of a serial differential signal group. When combined with the driving signal group, the cascade of multiple chips can be realized.

應當說明的是，以上的一般描述和後文的細節描述僅是示例性和解釋性的，並不能限制本創作。 It should be noted that the above general description and the following detailed description are only illustrative and explanatory, and do not limit the present invention.

10:掃描卡A 10:Scan card A

100:LED顯示屏控制系統A(控制系統A) 100: LED display control system A (control system A)

11:處理器A 11: Processor A

12:緩衝器A 12:Buffer A

13:多針介面A 13:Multi-pin interface A

20:LED驅動晶片A 20:LED driver chip A

200:控制系統B 200:Control system B

21:多針介面B 21:Multi-pin interface B

22:緩衝器B 22:Buffer B

23:LED驅動電路A 23:LED drive circuit A

24:緩衝器C 24:Buffer C

25:多針介面C 25:Multi-pin interface C

30:掃描卡B 30: Scan card B

300:控制系統C 300:Control system C

31:處理器B 31: Processor B

32:緩衝器D 32:Buffer D

33:串行信號介面 33:Serial signal interface

40:LED驅動晶片B 40:LED driver chip B

400:顯示屏 400:Display

41:串並轉換模組A 41:Serial to parallel conversion module A

42:緩衝器E 42:Buffer E

43:LED驅動電路B 43:LED drive circuit B

50:掃描卡C 50:Scan card C

51:處理器C 51: Processor C

52:緩衝器F 52:Buffer F

53:信號發送器A 53:Signal transmitter A

54:模式切換模組 54:Mode switching module

60:LED驅動晶片C 60:LED driver chip C

61:串並轉換模組B 61:Serial to parallel conversion module B

62:數位模組A 62:Digital module A

63:驅動模組A 63:Driver module A

64:並串轉換模組B 64: Parallel-to-serial conversion module B

CLK:時鐘信號 CLK: clock signal

EN1,EN2,OE:使能信號 EN1, EN2, OE: enable signal

LAT:鎖存信號 LAT: latch signal

圖1示出一種LED顯示屏控制系統的示意圖； Figure 1 shows a schematic diagram of an LED display control system;

圖2示出另一種LED顯示屏控制系統的示意圖； Figure 2 shows a schematic diagram of another LED display control system;

圖3示出根據本創作第一實施例提供的LED顯示屏控制系統的示意圖； Figure 3 shows a schematic diagram of an LED display control system provided according to the first embodiment of the present invention;

圖4示出根據本創作第二實施例提供的LED顯示屏控制系統的示意圖； Figure 4 shows a schematic diagram of an LED display control system provided according to the second embodiment of the present invention;

圖5示出根據本創作第三實施例提供的LED顯示屏控制系統的示意圖； Figure 5 shows a schematic diagram of an LED display control system provided according to the third embodiment of the present invention;

圖6示出根據本創作實施例提供的顯示裝置的示意圖。 FIG. 6 shows a schematic diagram of a display device provided according to an embodiment of the present invention.

為了便於理解本創作，下面將參照相關圖式對本創作進行更全面的描述。圖式中給出了本創作的較佳實施例。但是，本創作可以通過不同的形式來實現，並不限於本文所描述的實施例。相反的，提供這些實施例的目的是使對本創作的公開內容的理解更加透徹全面。 In order to facilitate understanding of this creation, a more comprehensive description of this creation will be given below with reference to relevant diagrams. The preferred embodiments of this invention are given in the drawings. However, the invention can be implemented in different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and comprehensive understanding of the present disclosure.

本創作的描述中，“示例性的”或者“例如”等詞用於表示作例子、例證或說明。本創作中被描述為“示例性的”或者“例如”的任何實施例不應被解釋為比其他實施例更優選或更具優勢。本文中的“和/或”是對關聯物件的關聯關係的一種描述，表示可以存在三種關係，例如，A和/或B，可以表示：單獨存在A，同時存在A和B，單獨存在B這三種情況。“多個”是指兩個或多於兩個。另外，為了便於清楚描述本創作實施例的技術方案，使用了“第一”、“第二”等字樣對功能和作用基本相同的相同項 或相似項進行區分。本領域技術人員可以理解“第一”、“第二”等字樣並不對數量和執行次序進行限定，並且“第一”、“第二”等字樣也並不限定一定不同。 In the description of this creation, the words "exemplary" or "such as" are used to mean an example, illustration, or explanation. Any embodiment described in this disclosure as "exemplary" or "such as" is not intended to be construed as preferred or advantageous over other embodiments. "And/or" in this article is a description of the relationship between related objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone. Three situations. "Plural" means two or more than two. In addition, in order to facilitate a clear description of the technical solutions of the embodiments of this invention, words such as “first” and “second” are used for the same items that have basically the same functions and effects. or similar items to distinguish. Those skilled in the art can understand that words such as "first" and "second" do not limit the number and execution order, and words such as "first" and "second" do not limit the number and execution order.

圖1示出一種LED顯示屏控制系統的示意圖，如圖1所示，該LED顯示屏控制系統A(本文中也簡稱為“控制系統A”)100包括掃描卡A 10和LED驅動晶片A 20，其中，掃描卡A 10上設置有處理器A 11、緩衝器A 12以及多針介面A 13，LED驅動晶片A 20上設置有多針介面B 21、緩衝器B 22、LED驅動電路A 23、緩衝器C 24以及多針介面C 25。該控制系統A 100中，掃描卡A 10與LED驅動晶片A 20之間，以及級聯的LED驅動晶片A 20之間傳輸的信號為單端的電晶體-電晶體邏輯(Transistor-Transistor Logic，TTL)信號，傳輸介質為多芯排線。 Figure 1 shows a schematic diagram of an LED display control system. As shown in Figure 1, the LED display control system A (also referred to as "control system A" in this article) 100 includes a scan card A 10 and an LED driver chip A 20. , wherein the scan card A 10 is provided with a processor A 11, a buffer A 12 and a multi-pin interface A 13, and the LED driver chip A 20 is provided with a multi-pin interface B 21, a buffer B 22 and an LED driver circuit A 23. , buffer C 24 and multi-pin interface C 25. In the control system A 100, the signals transmitted between the scan card A 10 and the LED driver chip A 20, as well as between the cascaded LED driver chips A 20, are single-ended transistor-transistor logic (Transistor-Transistor Logic, TTL). ) signal, the transmission medium is multi-core cable.

然而，由於每個單端信號需要佔用一根線芯，造成排線的線芯數量較多，導致排線與LED燈板模組之間的接外掛程式的接觸點也較多，增大了線芯不通或接觸不良導致顯示異常的可能；此外，由於TTL信號的信號衰減傳輸距離有限，使得該控制系統A 100不適於需要長距離傳輸信號的場合，而且由於TTL信號的傳輸速率比較低，也影響了LED顯示屏的顯示效果。 However, since each single-ended signal needs to occupy one wire core, the number of wire cores in the cable is larger, resulting in more contact points for plug-ins between the cable and the LED light panel module, which increases the Blocked wire cores or poor contact may lead to abnormal display; in addition, due to the signal attenuation of TTL signals and the limited transmission distance, the control system A 100 is not suitable for situations where long-distance signal transmission is required, and due to the relatively low transmission rate of TTL signals, It also affects the display effect of the LED display.

圖2示出另一種LED顯示屏控制系統的示意圖，對上述問題進行了改進，如圖2所示，該控制系統B 200包括掃描卡B 30和LED驅動晶片B 40，其中，掃描卡B 30上設置有處理器B 31、緩衝器D 32以及串行信號介面33，LED驅動晶片B 40上設置有串並轉換模組A 41、緩衝器E 42以及LED驅動電路B 43。其中，掃描卡B 30中設置的串行信號介面33使得掃描卡B 30能夠輸出低電壓差分信號信號(Low Voltage Differential Signaling，LVDS)組，LED驅動晶片B 40上設置的串並轉換模組A 41使得LED驅動晶片B 40能夠接收LVDS信號組。 Figure 2 shows a schematic diagram of another LED display control system, which improves the above problems. As shown in Figure 2, the control system B 200 includes a scanning card B 30 and an LED driver chip B 40, where the scanning card B 30 A processor B 31, a buffer D 32 and a serial signal interface 33 are provided on the LED driver chip B 40. A serial-to-parallel conversion module A 41, a buffer E 42 and an LED driver circuit B 43 are provided on the LED driver chip B 40. Among them, the serial signal interface 33 provided in the scanning card B 30 enables the scanning card B 30 to output a low voltage differential signal signal (Low Voltage Differential Signaling, LVDS) set, and the serial-to-parallel conversion module A provided on the LED driver chip B 40 41 enables the LED driver chip B 40 to receive the LVDS signal group.

該控制系統B 200中，掃描卡B 30與LED驅動晶片B 40之間可以採用串行的LVDS信號組進行數據傳輸，例如掃描卡B 30與第1級的LED驅動晶片B 40之間傳輸第1組LVDS信號，掃描卡B 30與第N級的LED驅動晶片B 40之間傳輸第N組LVDS信號，N為大於1的整數，使得信號能夠傳輸的更遠且通信更穩定。但是，該控制系統B 200中只能實現多個LED驅動晶片B 40的並聯，而無法實現多個LED驅動晶片B 40的級聯，應用場景有限。 In the control system B 200, a serial LVDS signal group can be used for data transmission between the scanning card B 30 and the LED driving chip B 40. For example, the second data transmission between the scanning card B 30 and the first-level LED driving chip B 40 1 set of LVDS signals, the Nth set of LVDS signals are transmitted between the scanner card B 30 and the Nth level LED driver chip B 40. N is an integer greater than 1, so that the signals can be transmitted further and the communication is more stable. However, the control system B 200 can only realize the parallel connection of multiple LED driver chips B 40 , but cannot realize the cascade connection of multiple LED driver chips B 40 , so the application scenarios are limited.

針對此問題，本創作實施例對控制系統B 200做了進一步地改進，如圖3所示，本實施例提供的控制系統C 300包括：掃描卡C 50以及與掃描卡C 50耦接的LED驅動晶片C 60。其中，掃描卡C 50與LED驅動晶片C 60之間通過連接線耦接，該連接線例如既支援傳輸串行信號，也支援傳輸並行信號。 To address this problem, this creative embodiment further improves the control system B 200. As shown in Figure 3, the control system C 300 provided by this embodiment includes: a scanning card C 50 and an LED coupled to the scanning card C 50. Driver chip C 60. Among them, the scanning card C 50 and the LED driver chip C 60 are coupled through a connection line. The connection line supports the transmission of both serial signals and parallel signals, for example.

在圖3示出的示例中，掃描卡C 50中集成有：處理器C 51、緩衝器F 52以及信號發送器A 53。 In the example shown in FIG. 3 , the scanning card C 50 is integrated with a processor C 51 , a buffer F 52 and a signal transmitter A 53 .

其中，處理器C 51接收前端模組發送的參數數據及圖像數據，用於對接收到的參數數據及圖像數據進行數據處理，輸出驅動信號組和顯示數據組，在圖3示出的示例中，處理器C 51以TTL信號格式輸出驅動信號組和顯示數據組。具體而言，處理器C 51接收的參數數據例如包含LED驅動晶片類型(脈寬調變(Pulse Width Modulation，PWM)型驅動晶片或通用型驅動晶片)，帶載顯示區域大小，輸出顯示數據(例如RGB數據)總組數，LED燈板模組的掃描方式(例如8掃、16掃、32掃等)以及LED燈板模組的像素寬高、掃描數、掃描解碼方式、驅動方式、數據組數和走線方式等資訊；處理器C 51接收的圖像數據例如包括場同步信號數據和顯示數據例如RGB數據組。 Among them, the processor C 51 receives the parameter data and image data sent by the front-end module, is used to perform data processing on the received parameter data and image data, and outputs the driving signal group and the display data group, as shown in Figure 3 In the example, the processor C 51 outputs the driving signal group and the display data group in TTL signal format. Specifically, the parameter data received by the processor C 51 includes, for example, the type of LED driver chip (pulse width modulation (Pulse Width Modulation, PWM) driver chip or universal driver chip), the size of the load display area, and the output display data ( For example, the total number of groups of RGB data), the scanning method of the LED light panel module (such as 8 scans, 16 scans, 32 scans, etc.) and the pixel width and height, scan number, scan decoding method, driving method, and data of the LED light panel module Information such as the number of groups and wiring methods; the image data received by the processor C 51 includes, for example, field synchronization signal data and display data such as RGB data groups.

在一些實施方式中，處理器C 51進行的數據處理包括：根 據接收到的參數數據對圖像數據進行截取、校正、數據重排和灰度抽取等處理中的至少一種，獲得處理後的圖像數據。其中，圖像數據截取例如包括根據參數數據中的帶載顯示區域大小來進行的，校正例如包括反伽瑪(Gamma)校正、亮度校正和/或其他校正比如色度校正，數據重排例如包括按照後端LED驅動晶片上列驅動晶片(例如通用型驅動晶片或PWM型驅動晶片)所需數據格式及LED顯示屏上的走線資訊等進行灰度數據位置重新排列並進行拼接組合等操作，灰度抽取例如包括校正處理後的灰度數據按照每一比特進行分離操作，以將灰度數據轉變成按照不同比特實現不同權重的方式。進一步地，處理器C 51還包括根據前述處理後的圖像數據產生與LED驅動晶片C 60相對應的驅動信號組，以及產生滿足LED燈板模組所需的顯示數據組，其中，驅動信號組例如包括時鐘信號(CLK)、鎖存信號(LAT)、使能信號(OE)、行選擇信號等，顯示數據組例如包括多個RGB數據組，LED燈板模組例如包括電路板、設置在電路板上的LED驅動晶片C 60、以及作為顯示像素的多個LED燈珠。 In some embodiments, the data processing performed by processor C 51 includes: root Perform at least one of interception, correction, data rearrangement, and grayscale extraction on the image data according to the received parameter data to obtain processed image data. The image data interception includes, for example, performing it according to the size of the loaded display area in the parameter data, the correction includes, for example, inverse gamma correction, brightness correction and/or other corrections such as chromaticity correction, and the data rearrangement includes, for example According to the data format required by the back-end LED driver chip and the upper row driver chip (such as a universal driver chip or a PWM driver chip) and the wiring information on the LED display, the grayscale data positions are rearranged and spliced and combined. Grayscale extraction, for example, includes performing a separation operation on each bit of the corrected grayscale data to convert the grayscale data into a manner that implements different weights based on different bits. Further, the processor C 51 also generates a driving signal group corresponding to the LED driving chip C 60 according to the aforementioned processed image data, and generates a display data group meeting the requirements of the LED light panel module, wherein the driving signal The group includes, for example, a clock signal (CLK), a latch signal (LAT), an enable signal (OE), a row selection signal, etc., the display data group includes, for example, multiple RGB data groups, and the LED light panel module, for example, includes a circuit board, settings There is an LED driving chip C 60 on the circuit board, and a plurality of LED lamp beads serving as display pixels.

可以理解，本實施例中的處理器C 51可以是集成的一個可以實現上述功能的綜合性器件，也可以看做是同時集成在掃描卡C 50上的多個分別實現上述不同功能的器件或電路模組的統稱，本創作對此不做嚴格限定。 It can be understood that the processor C 51 in this embodiment can be integrated into a comprehensive device that can realize the above functions, or it can also be regarded as a plurality of devices simultaneously integrated on the scan card C 50 that respectively realize the above different functions. A general term for circuit modules, which is not strictly limited in this creation.

緩衝器F 52與處理器C 51耦接，接收處理器C 51輸出的驅動信號組和顯示數據組，緩衝器F 52用於對處理器C 51輸出的驅動信號組和顯示數據組進行緩存，以配合處理器C 51完成數據處理及數據輸出操作。在圖3示出的示例中，緩衝器F 52是以串行差分信號組格式輸出緩存的數據內容，相當於對驅動信號組和顯示數據組進行了一次並串轉換，但其他的實施方式也是可能的，例如緩衝器F 52也可以TTL信號組格式並行輸出緩存的數 據內容，即並行輸出驅動信號組和顯示數據組。 The buffer F 52 is coupled to the processor C 51 and receives the driving signal group and the display data group output by the processor C 51. The buffer F 52 is used to cache the driving signal group and the display data group output by the processor C 51. To cooperate with the processor C 51 to complete data processing and data output operations. In the example shown in FIG. 3 , the buffer F 52 outputs the buffered data content in the format of a serial differential signal group, which is equivalent to a parallel-to-serial conversion of the driving signal group and the display data group, but other implementations are also possible. It is possible, for example, that the buffer F 52 can also output the buffered data in parallel in TTL signal group format. The data content is the parallel output drive signal group and display data group.

在圖3示出的示例中，串行差分信號組例如為LVDS信號組。在進一步地優選實施方式中，串行差分信號組例如為mini-LVDS信號組。 In the example shown in FIG. 3 , the serial differential signal group is, for example, an LVDS signal group. In a further preferred embodiment, the serial differential signal group is, for example, a mini-LVDS signal group.

信號發送器A 53與緩衝器F 52耦接，用於將串行差分信號組傳輸至(例如通過柔性電纜傳輸至)LED驅動晶片C 60。此處，由於驅動信號組和顯示數據組是以LVDS信號組傳送給LED驅動晶片C 60，有利於減少排線線芯數量，提高傳輸的穩定性和可靠性。可以理解，信號發送器A 53可以是任何在開啟或關閉時能夠傳輸串行差分信號的器件。 The signal transmitter A 53 is coupled to the buffer F 52 for transmitting the serial differential signal set to the LED driver chip C 60 (for example, through a flexible cable). Here, since the driving signal group and the display data group are transmitted to the LED driving chip C 60 in the form of an LVDS signal group, it is beneficial to reduce the number of cable cores and improve the stability and reliability of transmission. It can be understood that the signal transmitter A 53 can be any device capable of transmitting a serial differential signal when turned on or off.

在圖3示出的示例中，LED驅動晶片C 60中集成有：串並轉換模組B 61、數位模組A 62、驅動模組A 63以及並串轉換模組B 64。 In the example shown in FIG. 3 , LED driving chip C 60 integrates: serial-to-parallel conversion module B 61 , digital module A 62 , driving module A 63 and parallel-to-serial conversion module B 64 .

可以理解，在具體實施中，一塊LED顯示屏是由多個LED燈珠陣列組成的，該多個LED燈珠可以由一個LED驅動晶片C 60統一驅動，也可以由級聯的多個LED驅動晶片共同驅動，故本創作實施例的控制系統C 300中，LED驅動晶片C 60的數量可以是一個，也可以是至少兩個。當存在至少兩個LED驅動晶片C 60時，該至少兩個LED驅動晶片C 60之間為級聯設置，且每個LED驅動晶片C 60的內部結構相同。 It can be understood that in specific implementation, an LED display screen is composed of an array of multiple LED lamp beads. The multiple LED lamp beads can be uniformly driven by one LED driver chip C 60 or can be driven by multiple cascaded LEDs. The chips are driven together, so in the control system C 300 of this creative embodiment, the number of the LED driving chips C 60 can be one or at least two. When there are at least two LED driving chips C 60 , the at least two LED driving chips C 60 are arranged in cascade, and the internal structure of each LED driving chip C 60 is the same.

其中，串並轉換模組B 61接收串行差分信號組，用於將來自掃描卡C 50或上級LED驅動晶片C 60的串行差分信號組進行串並轉換以得到並行驅動信號組和並行顯示數據組並輸出至下級模組。如此，使得在掃描卡C 50與LED驅動晶片C 60之間，能夠以串行差分信號組的格式高速的傳輸信號和數據，而在LED驅動晶片C 60內部，能夠以並行驅動信號組和並行顯示數據組的數據傳輸格式實現對LED顯示屏的準確驅動。 Among them, the serial-to-parallel conversion module B 61 receives a serial differential signal group and is used to perform serial-to-parallel conversion on the serial differential signal group from the scanning card C 50 or the upper-level LED driver chip C 60 to obtain a parallel driving signal group and parallel display. Data group and output to lower-level modules. In this way, signals and data can be transmitted at high speed in the format of a serial differential signal group between the scanner card C 50 and the LED driver chip C 60 , while inside the LED driver chip C 60 , signals and data can be transmitted in the format of a parallel drive signal group and parallel The data transmission format of the display data group enables accurate driving of the LED display.

本創作實施例中，並行驅動信號組和並行顯示數據組例如為TTL信號組。 In this creative embodiment, the parallel driving signal group and the parallel display data group are, for example, TTL signal groups.

數位模組A 62與串並轉換模組B 61耦接，用於對接收到的並行驅動信號組和並行顯示數據組進行處理和編碼。其中，經處理後的並行驅動信號組和並行顯示數據組為驅動本級LED驅動晶片C 60對應的LED燈珠的信號和數據，其被輸出至驅動模組A 63用於本級晶片顯示，經編碼後的並行驅動信號組和並行顯示數據組為多級LED驅動晶片C 60級聯時需要傳輸至下一級LED驅動晶片的信號和數據，其被輸出至並串轉換模組B 64以便向下一級LED驅動晶片傳輸。 The digital module A 62 is coupled to the serial-to-parallel conversion module B 61 and is used to process and encode the received parallel driving signal group and parallel display data group. Among them, the processed parallel drive signal group and parallel display data group are the signals and data for driving the LED lamp beads corresponding to the LED driver chip C 60 of this level, which are output to the drive module A 63 for display of this level chip. The encoded parallel driving signal group and parallel display data group are the signals and data that need to be transmitted to the next-level LED driving chip when the multi-level LED driving chip C 60 is cascaded, and are output to the parallel-to-serial conversion module B 64 for transmission to the next-level LED driving chip. Next-level LED driver chip transmission.

在一些實施方式中，數位模組A 62進行的處理包括：對接收的數據進行存取和顯示分組。 In some embodiments, the processing performed by digital module A 62 includes accessing and displaying grouping of received data.

在一些實施方式中，不同級的LED驅動晶片可以讀取編碼的數值以獲取顯示數據，且不同級的LED驅動晶片根據編碼的不同來讀取對應本級的顯示數據。可以理解，在多個LED驅動晶片C 60級聯時的控制系統C 300中，通過數位模組A 62對傳輸的數據進行編碼及處理，使得每個驅動模組A 63都能夠準確的獲取驅動對應LED燈珠所需的驅動信號及顯示數據。 In some embodiments, LED driving chips of different levels can read the coded values to obtain display data, and the LED driving chips of different levels can read the display data corresponding to the corresponding level according to the different codes. It can be understood that in the control system C 300 when multiple LED driver chips C 60 are cascaded, the transmitted data is encoded and processed through the digital module A 62 so that each driver module A 63 can accurately obtain the driver Corresponds to the driving signals and display data required by LED lamp beads.

驅動模組A 63與數位模組A 62耦接，接收處理後的並行驅動信號組和並行顯示數據組以驅動LED顯示屏進行圖像顯示。 The driving module A 63 is coupled to the digital module A 62 and receives the processed parallel driving signal group and the parallel display data group to drive the LED display screen for image display.

本創作實施例中，驅動模組A 63例如包括列驅動晶片，但本創作的其他實施例中，驅動模組A 63還可包括行驅動晶片(也稱行解碼晶片)。 In this embodiment of the invention, the driving module A 63 includes, for example, a column driver chip, but in other embodiments of the invention, the driving module A 63 may also include a row driver chip (also called a row decoding chip).

並串轉換模組B 64與數位模組A 62耦接，接收編碼後的並行驅動信號組和並行顯示數據組並進行並串轉換，以輸出串行差分信號組至下一級LED驅動晶片。 The parallel-to-serial conversion module B 64 is coupled to the digital module A 62 to receive the encoded parallel driving signal group and the parallel display data group and perform parallel-to-serial conversion to output the serial differential signal group to the next-level LED driver chip.

可以理解，由於本創作在每個LED驅動晶片C 60中都同 時設置有串並轉換模組B 61和並串轉換模組B 64，因此本創作在多個LED驅動晶片C 60的級聯應用中，也能夠以串行差分信號組的格式實現信號及數據在不同LED驅動晶片C 60之間的高速傳輸，且信號干擾小，傳輸品質高。 It is understandable that since this invention is the same in each LED driver chip C 60 There is a serial-to-parallel conversion module B 61 and a parallel-to-serial conversion module B 64. Therefore, in the cascade application of multiple LED driver chips C 60, this invention can also realize signals and data in the format of a serial differential signal group. High-speed transmission between different LED driver chips C 60 with little signal interference and high transmission quality.

以下將列舉其他實施例以作為說明。在此必須說明的是，下述實施例沿用前述實施例的部件標號與部分內容，其中採用相同的標號來表示相同或近似的部件，並且省略了相同技術內容的說明。關於省略部分的說明可參考前述實施例，下述實施例不再重複贅述。 Other examples will be listed below as illustrations. It must be noted here that the following embodiments use the component numbers and part of the content of the previous embodiments, where the same numbers are used to represent the same or similar components, and the description of the same technical content is omitted. For descriptions of omitted parts, reference may be made to the foregoing embodiments and will not be repeated in the following embodiments.

在進一步地優選實施例中，如圖4和圖5所示，掃描卡C 50中還集成有：模式切換模組54，該模式切換模組54用於根據用戶指令輸出第一模式切換信號和第二模式切換信號的其中之一，第一模式切換信號用於控制掃描卡C 50工作於TTL模式，第二模式切換信號用於控制掃描卡C 50工作於LVDS模式。其中，在圖5示出的示例中，在TTL模式下，掃描卡C 50傳輸TTL信號格式的並行驅動信號組和並行顯示數據組(即TTL信號組)至LED驅動晶片C 60；在圖4示出的示例中，在LVDS模式下，掃描卡C 50傳輸LVDS信號格式的串行差分信號組(即LVDS信號組)至LED驅動晶片C 60。 In a further preferred embodiment, as shown in Figures 4 and 5, the scan card C 50 is also integrated with: a mode switching module 54, which is used to output the first mode switching signal and the One of the second mode switching signals, the first mode switching signal is used to control the scanning card C 50 to operate in the TTL mode, and the second mode switching signal is used to control the scanning card C 50 to operate in the LVDS mode. Among them, in the example shown in Figure 5, in the TTL mode, the scan card C 50 transmits the parallel driving signal group and the parallel display data group (ie, TTL signal group) in the TTL signal format to the LED driving chip C 60; in Figure 4 In the example shown, in the LVDS mode, the scanning card C 50 transmits a serial differential signal group in the LVDS signal format (ie, the LVDS signal group) to the LED driver chip C 60 .

具體實施中，模式切換模組54與信號發送器A 53耦接，通過向信號發送器A 53發送第一模式切換信號或第二模式切換信號，控制信號發送器A 53處於不同的工作狀態，從而實現對掃描卡C 50的模式切換控制。在一些示例中，信號發送器A 53是一種介面轉換器件，且接收的串行差分信號組，並能夠根據接收到的控制信號(例如第一模式切換信號或第二模式切換信號)輸出串行差分信號組，或者輸出並行驅動信號組和並行顯示數據組。例如，模式切換模組54向信號發送器A 53發送第一模式切換信 號時，第一模式切換信號控制信號發送器A 53將串行的LVDS信號組轉換成並行的TTL信號組後傳輸至LED驅動晶片C 60；模式切換模組54向信號發送器A 53發送第二模式切換信號時，第二模式切換信號控制信號發送器A 53輸出串行的LVDS信號組至LED驅動晶片C 60。 In a specific implementation, the mode switching module 54 is coupled to the signal transmitter A 53, and controls the signal transmitter A 53 to be in different working states by sending a first mode switching signal or a second mode switching signal to the signal transmitter A 53. Thus, the mode switching control of the scanning card C 50 is realized. In some examples, the signal transmitter A 53 is an interface conversion device and receives a serial differential signal group and can output a serial differential signal according to the received control signal (such as the first mode switching signal or the second mode switching signal). Differential signal group, or output parallel driving signal group and parallel display data group. For example, the mode switching module 54 sends the first mode switching signal to the signal transmitter A 53 When the signal is signaled, the first mode switching signal control signal transmitter A 53 converts the serial LVDS signal group into a parallel TTL signal group and then transmits it to the LED driver chip C 60; the mode switching module 54 sends the first mode switching signal to the signal transmitter A 53. When the second mode switching signal is generated, the second mode switching signal controls the signal transmitter A 53 to output a serial LVDS signal group to the LED driver chip C 60 .

可以理解，第一模式切換信號和第二模式切換信號可以是模式切換模組54的同一信號埠輸出的不同位準表示的信號，也可以是模式切換模組54的不同信號埠輸出的同一位準表示的信號，本創作實施例對此不做嚴格限定。 It can be understood that the first mode switching signal and the second mode switching signal may be signals represented by different levels output by the same signal port of the mode switching module 54 , or they may be the same bit output by different signal ports of the mode switching module 54 . quasi-represented signals, and this embodiment of the present invention does not strictly limit this.

如圖4和圖5所示，串並轉換模組B 61還接收使能信號EN1，並串轉換模組B 64還接收使能信號EN2。其中，使能信號EN1和EN2分別用於控制串並轉換模組B 61和並串轉換模組B 64的開啟與關閉，以控制LED驅動晶片C 60在LVDS模式和TTL模式之間切換。具體實施中，在圖4示出的示例中，使能信號EN1控制串並轉換模組B 61開啟串並轉換功能，使能信號EN2控制並串轉換模組B 64開啟並串轉換功能，LED驅動晶片C 60工作在LVDS模式，此時LED驅動晶片C 60接收及輸出的是串行的LVDS信號組；在圖5示出的示例中，使能信號EN1控制串並轉換模組B 61關閉串並轉換功能，使能信號EN2控制並串轉換模組B 64關閉並串轉換功能，LED驅動晶片C 60工作在TTL模式，此時LED驅動晶片C 60接收及輸出的是並行的TTL信號組。 As shown in Figures 4 and 5, the serial-to-parallel conversion module B 61 also receives the enable signal EN1, and the parallel-to-serial conversion module B 64 also receives the enable signal EN2. Among them, the enable signals EN1 and EN2 are used to control the opening and closing of the serial-to-parallel conversion module B 61 and the parallel-to-serial conversion module B 64 respectively to control the LED driver chip C 60 to switch between the LVDS mode and the TTL mode. In the specific implementation, in the example shown in Figure 4, the enable signal EN1 controls the serial-to-parallel conversion module B 61 to turn on the serial-to-parallel conversion function, the enable signal EN2 controls the parallel-to-serial conversion module B 64 to turn on the parallel-to-serial conversion function, and the LED The driver chip C 60 works in LVDS mode. At this time, the LED driver chip C 60 receives and outputs a serial LVDS signal group; in the example shown in Figure 5, the enable signal EN1 controls the serial-to-parallel conversion module B 61 to close For the serial-to-parallel conversion function, the enable signal EN2 controls the parallel-to-serial conversion module B 64 to turn off the parallel-to-serial conversion function. The LED driver chip C 60 works in TTL mode. At this time, the LED driver chip C 60 receives and outputs a parallel TTL signal group. .

可以理解，使能信號EN1和EN2可以是同一信號，也可以是不同的信號，本創作實施例對此不做嚴格限定。此外，使能信號EN1和EN2例如可以由模式切換模組54輸出的模式切換信號(包括第一模式切換信號和第二模式切換信號)充當，或根據模式切換信號經適當的邏輯轉換後獲得。 It can be understood that the enable signals EN1 and EN2 may be the same signal or different signals, and this is not strictly limited in this creative embodiment. In addition, the enable signals EN1 and EN2 may be, for example, provided by the mode switching signal (including the first mode switching signal and the second mode switching signal) output by the mode switching module 54, or may be obtained through appropriate logic conversion according to the mode switching signal.

可以理解，在圖3出的控制系統C 300的基礎上，圖4和圖5示出的控制系統C 300中，LED驅動晶片C 60的級聯形式可以根據需求在TTL模式和LVDS模式之間進行切換，使得控制系統C 300能夠適用於更多的應用場景。 It can be understood that based on the control system C 300 shown in Figure 3, in the control system C 300 shown in Figures 4 and 5, the cascade form of the LED driver chip C 60 can be between the TTL mode and the LVDS mode according to requirements. Switching makes the control system C 300 suitable for more application scenarios.

進一步地，如圖6所示，本創作實施例還公開了一種顯示裝置，包括：顯示屏400以及如本創作任一實施例中所示出的控制系統C 300。其中，控制系統C 300用於根據參數數據及圖像數據驅動顯示屏400。 Further, as shown in FIG. 6 , this embodiment of the invention also discloses a display device, including: a display screen 400 and a control system C 300 as shown in any embodiment of the invention. Among them, the control system C 300 is used to drive the display screen 400 according to the parameter data and image data.

本實施例中，顯示屏400上設置有M行*N列的LED燈珠陣列，該LED燈珠陣列包括多個按行和列排列的LED燈珠，M、N均為大於1的正整數。每個LED燈珠包括陽極和陰極，在LED燈珠的陽極和陰極之間施加正向電壓時，LED燈珠點亮。顯示屏400中，多個LED燈珠分別作為像素單元。可以理解，顯示屏400中的每個像素都可以包括一個或多個像素單元。例如，在顯示彩色圖像時，可以採用三個LED燈珠分別用於顯示紅綠藍(RGB)的顏色分量，每個LED燈珠根據自身的發光特性產生相應顏色的光，或者採用附加的濾光片產生相應顏色的光。 In this embodiment, the display screen 400 is provided with an M row*N column LED lamp bead array. The LED lamp bead array includes a plurality of LED lamp beads arranged in rows and columns. M and N are both positive integers greater than 1. . Each LED lamp bead includes an anode and a cathode. When a forward voltage is applied between the anode and cathode of the LED lamp bead, the LED lamp bead lights up. In the display screen 400, multiple LED lamp beads serve as pixel units respectively. It can be understood that each pixel in the display screen 400 may include one or more pixel units. For example, when displaying color images, three LED lamp beads can be used to display the red, green, and blue (RGB) color components. Each LED lamp bead produces light of the corresponding color according to its own luminous characteristics, or additional LED lamp beads can be used to display the red, green, and blue (RGB) color components. Filters produce corresponding colors of light.

示例性地，顯示屏400包括發光二極體(Light Emitting Diode，LED)顯示屏、主動矩陣有機發光二極體(Active-Matrix Organic Light-Emitting Diode，AMOLED)顯示屏、Micro LED顯示屏或Mini LED顯示屏。 Exemplarily, the display screen 400 includes a light emitting diode (Light Emitting Diode, LED) display screen, an active matrix organic light emitting diode (Active-Matrix Organic Light-Emitting Diode, AMOLED) display screen, a Micro LED display screen or a Mini LED display.

綜上，本創作實施例在控制系統中，將信號發送器和處理器集成了一個掃描卡中，將串並轉換模組、數位模組、並串轉換模組和驅動模組集成在了一個LED驅動晶片中，能夠減少信號在傳輸過程中的阻抗和干擾，也提高了集成度，能夠達到減小驅動模組的體積，提升LED顯示屏的顯示效果的目的；此外，由於在每個LED驅動晶片中同時集成有串並轉換模組和並串轉換模組，也 便於LED驅動晶片在以串行差分信號組的格式高速的傳輸顯示數據組與驅動信號組時，實現多晶片的級聯。 In summary, in the control system of this creative embodiment, the signal transmitter and processor are integrated into a scanning card, and the serial-to-parallel conversion module, digital module, parallel-to-serial conversion module and driver module are integrated into one The LED driver chip can reduce the impedance and interference during signal transmission, and also improves the integration level, which can achieve the purpose of reducing the size of the driver module and improving the display effect of the LED display; in addition, since each LED The driver chip integrates both a serial-to-parallel conversion module and a parallel-to-serial conversion module. It is convenient for the LED driver chip to realize the cascade connection of multiple chips when transmitting the display data group and the driving signal group at high speed in the format of the serial differential signal group.

最後應說明的是：顯然，上述實施例僅僅是為清楚地說明本創作所作的舉例，而並非對實施方式的限定。對於所屬領域的普通技術人員來說，在上述說明的基礎上還可以做出其它不同形式的變化或變動。這裡無需也無法對所有的實施方式予以窮舉。而由此所引申出的顯而易見的變化或變動仍處於本創作的保護範圍之中。 Finally, it should be noted that: obviously, the above-mentioned embodiments are only examples to clearly illustrate the present invention, and are not intended to limit the implementation. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. An exhaustive list of all implementations is neither necessary nor possible. The obvious changes or modifications derived therefrom are still within the scope of protection of this creation.

300:控制系統C 300:Control system C

50:掃描卡C 50:Scan card C

51:處理器C 51: Processor C

52:緩衝器F 52:Buffer F

53:信號發送器A 53:Signal transmitter A

60:LED驅動晶片C 60:LED driver chip C

61:串並轉換模組B 61:Serial to parallel conversion module B

62:數位模組A 62:Digital module A

63:驅動模組A 63:Driver module A

64:並串轉換模組B 64: Parallel-to-serial conversion module B

Claims (10)

一種LED顯示屏控制系統，包括：掃描卡以及與所述掃描卡耦接的LED驅動晶片，其特徵在於，所述掃描卡中集成有：處理器，用於對接收到的參數數據及圖像數據進行數據處理，輸出驅動信號組和顯示數據組；緩衝器，與所述處理器耦接，接收所述驅動信號組和所述顯示數據組，輸出串行差分信號組；信號發送器，與所述緩衝器耦接，用於將所述串行差分信號組傳輸至所述LED驅動晶片；所述LED驅動晶片中集成有：串並轉換模組，接收所述串行差分信號組，輸出並行驅動信號組和並行顯示數據組；數位模組，與所述串並轉換模組耦接，用於對接收到的並行驅動信號組和並行顯示數據組進行處理和編碼；驅動模組，與所述數位模組耦接，接收處理後的並行驅動信號組和並行顯示數據組以驅動LED顯示屏進行圖像顯示；並串轉換模組，與所述數位模組耦接，接收編碼後的並行驅動信號組和並行顯示數據組，輸出串行差分信號組。 An LED display screen control system, including: a scanning card and an LED driver chip coupled to the scanning card, characterized in that the scanning card is integrated with: a processor for processing received parameter data and images The data is processed, and a driving signal group and a display data group are output; a buffer is coupled to the processor, receives the driving signal group and the display data group, and outputs a serial differential signal group; a signal transmitter, and The buffer coupling is used to transmit the serial differential signal group to the LED driver chip; the LED driver chip is integrated with a serial-to-parallel conversion module to receive the serial differential signal group and output The parallel drive signal group and the parallel display data group; the digital module, coupled with the serial-to-parallel conversion module, is used to process and encode the received parallel drive signal group and the parallel display data group; the drive module, and The digital module is coupled to receive the processed parallel drive signal group and the parallel display data group to drive the LED display screen for image display; the parallel-to-serial conversion module is coupled to the digital module to receive the encoded Parallel drive signal group and parallel display data group, output serial differential signal group. 如請求項1所述的LED顯示屏控制系統，其中，所述LED顯示屏控制系統中所述LED驅動晶片的數量為至少兩個，該至少兩個所述LED驅動晶片級聯設置。 The LED display screen control system according to claim 1, wherein the number of the LED driving chips in the LED display screen control system is at least two, and the at least two LED driving chips are arranged in cascade. 如請求項1所述的LED顯示屏控制系統，其中，所述掃描卡中還集成有：模式切換模組，用於根據用戶指令輸出第一模式切換信號和第二模式切換信號的其中之一，其中，所述第一模式切換信號用於控制所述掃描卡工作於TTL模式，所述第二模式切換 信號用於控制所述掃描卡工作於LVDS模式。 The LED display screen control system according to claim 1, wherein the scanning card is also integrated with: a mode switching module for outputting one of the first mode switching signal and the second mode switching signal according to user instructions. , wherein the first mode switching signal is used to control the scanning card to work in TTL mode, and the second mode switching signal The signal is used to control the scanning card to work in LVDS mode. 如請求項3所述的LED顯示屏控制系統，其中，所述信號發送器與所述模式切換模組耦接，接收所述第一模式切換信號和所述第二模式切換信號的其中之一，所述第一模式切換信號用於控制所述信號發送器輸出並行驅動信號組和並行顯示數據組；所述第二模式切換信號用於控制所述信號發送器輸出所述串行差分信號組。 The LED display screen control system according to claim 3, wherein the signal transmitter is coupled to the mode switching module and receives one of the first mode switching signal and the second mode switching signal. , the first mode switching signal is used to control the signal transmitter to output a parallel drive signal group and a parallel display data group; the second mode switching signal is used to control the signal transmitter to output the serial differential signal group . 如請求項3所述的LED顯示屏控制系統，其中，所述串並轉換模組和所述並串轉換模組還接收使能信號，所述使能信號用於控制所述串並轉換模組和所述並串轉換模組的開啟與關閉，以控制所述LED驅動晶片在LVDS模式和TTL模式之間切換。 The LED display screen control system according to claim 3, wherein the serial-to-parallel conversion module and the parallel-to-serial conversion module also receive an enable signal, and the enable signal is used to control the serial-to-parallel conversion module. The group and the parallel-to-serial conversion module are turned on and off to control the LED driver chip to switch between the LVDS mode and the TTL mode. 如請求項1至5中任一項所述的LED顯示屏控制系統，其中，所述並行驅動信號組和所述並行顯示數據組為TTL信號組。 The LED display screen control system according to any one of claims 1 to 5, wherein the parallel drive signal group and the parallel display data group are TTL signal groups. 如請求項1至5中任一項所述的LED顯示屏控制系統，其中，所述串行差分信號組為LVDS信號組。 The LED display screen control system according to any one of claims 1 to 5, wherein the serial differential signal group is an LVDS signal group. 如請求項7所述的LED顯示屏控制系統，其中，所述串行差分信號組為mini-LVDS信號組。 The LED display screen control system according to claim 7, wherein the serial differential signal group is a mini-LVDS signal group. 一種顯示裝置，其特徵在於，包括：顯示屏；如請求項1至8中任一項所述的LED顯示屏控制系統，與所述顯示屏耦接，用於根據參數數據及圖像數據驅動所述顯示屏。 A display device, characterized in that it includes: a display screen; the LED display screen control system as described in any one of claims 1 to 8, coupled with the display screen, for driving according to parameter data and image data The display screen. 如請求項9所述的顯示裝置，其中，所述顯示屏包括LED顯示屏、AMOLED顯示屏、Micro LED顯示屏或Mini LED顯示屏。 The display device according to claim 9, wherein the display screen includes an LED display screen, an AMOLED display screen, a Micro LED display screen or a Mini LED display screen.
TW112209231U 2023-06-14 2023-08-29 Control system for led display and display device TWM650787U (en)

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