CN102509532A - Detection circuit, driving chip, display module and detection method of transmission interface - Google Patents
- ️Wed Jun 20 2012
Info
-
Publication number
- CN102509532A CN102509532A CN2011103717281A CN201110371728A CN102509532A CN 102509532 A CN102509532 A CN 102509532A CN 2011103717281 A CN2011103717281 A CN 2011103717281A CN 201110371728 A CN201110371728 A CN 201110371728A CN 102509532 A CN102509532 A CN 102509532A Authority
- CN
- China Prior art keywords
- input
- output
- electrical transmission
- bit
- data Prior art date
- 2011-09-20 Legal status (The legal status 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 status listed.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 115
- 238000001514 detection method Methods 0.000 title claims abstract description 51
- 238000012546 transfer Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
一种检测电路、显示面板的驱动芯片、显示模块及传输接口的检测方法。上述传输接口电性连接显示面板的一驱动芯片。此驱动芯片具有多个输入/输出接脚，而传输接口具有多个电性传递路径，且每一电性传递路径的其中一端电性连接其中一输入/输出接脚。此检测方法包括：通过其中一电性传递路径传递工作电源至驱动芯片；使驱动芯片通过多个输入/输出接脚输出多个比特数据至多个对应的电性传递路径；以及从上述电性传递路径的另一端接收上述比特数据，并判断接收到的每一比特数据是否符合其对应的预设比特值，借以判断是否有发生故障事件。
A method for detecting circuits, drive chips of display panels, display modules and transmission interfaces. The above-mentioned transmission interface is electrically connected to a driver chip of the display panel. The driver chip has a plurality of input/output pins, and the transmission interface has a plurality of electrical transmission paths, and one end of each electrical transmission path is electrically connected to one of the input/output pins. This detection method includes: transmitting operating power to the driver chip through one of the electrical transmission paths; causing the driver chip to output multiple bits of data to multiple corresponding electrical transmission paths through multiple input/output pins; and from the above electrical transmission path The other end of the path receives the above bit data and determines whether each received bit data matches its corresponding preset bit value to determine whether a fault event has occurred.
Description
技术领域 technical field
本发明涉及显示技术的领域，且特别是有关于一种检测电路、一种显示面板的驱动芯片、一种显示模块及一种传输接口的检测方法。The present invention relates to the field of display technology, and in particular relates to a detection circuit, a driving chip of a display panel, a display module and a detection method of a transmission interface.
背景技术 Background technique
就目前而言，在检测液晶显示器的时候，都是直接点亮显示面板，并利用目视的方式来直接判断显示画面是否有异常现象。For now, when testing a liquid crystal display, the display panel is directly lit, and a visual method is used to directly judge whether there is any abnormality in the display screen.
然而，由于在点亮显示面板的时候，显示数据一般是通过传输接口传送到显示面板的驱动芯片，而前述的这种检测方法在判断显示画面有异常时，就需要先通过电表来检测显示数据的传输路径是否有问题，例如是检测传输接口内部是否有短路或是断线的问题，或者是检测传输接口与驱动芯片的接合处是否有接触不良或短路的问题。因此，这种检测方式不仅耗费时间，也不易找出有问题的位置。However, when the display panel is turned on, the display data is generally transmitted to the driver chip of the display panel through the transmission interface, and the aforementioned detection method needs to first detect the display data through the electric meter when it is judged that the display screen is abnormal. Whether there is a problem with the transmission path, such as detecting whether there is a short circuit or a broken line inside the transmission interface, or detecting whether there is a poor contact or short circuit at the joint between the transmission interface and the driver chip. Therefore, this detection method is not only time-consuming, but also difficult to find the location of the problem.
发明内容 Contents of the invention
本发明提供一种检测电路，其可与特制的驱动芯片搭配使用，以快速地检测出显示数据的传输路径是否有问题。The invention provides a detection circuit, which can be used in conjunction with a special driver chip to quickly detect whether there is a problem with the transmission path of display data.
本发明另提供一种显示面板的驱动芯片，此种驱动芯片用以与上述的检测电路搭配使用。The present invention further provides a driving chip for a display panel, and the driving chip is used in conjunction with the above detection circuit.
本发明再提供一种显示模块，其包括有上述的驱动芯片。The present invention further provides a display module, which includes the above-mentioned driving chip.
本发明又提供一种传输接口的检测方法，其可快速地检测出显示数据的传输路径是否有问题。The present invention also provides a detection method of the transmission interface, which can quickly detect whether there is a problem with the transmission path of the display data.
本发明提出一种检测电路，其用于检测一显示模块。所述的显示模块具有一显示面板、一驱动芯片以及一传输接口。所述的驱动芯片用以驱动显示面板，且此驱动芯片另具有多个第一输入/输出接脚。而所述的传输接口具有多个电性传递路径，且每一电性传递路径的其中一端电性连接上述第一输入/输出接脚的其中之一。上述的检测电路包括有多个第二输入/输出接脚与一控制单元。每一第二输入/输出接脚用以电性连接上述电性传递路径的其中之一的另一端。而上述的控制单元用以通过上述第二输入/输出接脚的其中之一而输出一工作电源至一对应的电性传递路径，以便利用此工作电源启动驱动芯片，进而使驱动芯片通过接收工作电源的第一输入/输出接脚以外的每一第一输入/输出接脚输出一比特数据至对应的电性传递路径。此控制单元还用以判断接收到的每一比特数据是否符合其对应的预设比特值，借以判断每一电性传递路径以及电性传递路径与第一输入/输出接脚相电性连接处是否有发生故障事件。The invention provides a detection circuit for detecting a display module. The display module has a display panel, a driving chip and a transmission interface. The driver chip is used to drive the display panel, and the driver chip also has a plurality of first input/output pins. The transmission interface has a plurality of electrical transmission paths, and one end of each electrical transmission path is electrically connected to one of the first input/output pins. The above detection circuit includes a plurality of second input/output pins and a control unit. Each second input/output pin is used for electrically connecting the other end of one of the above-mentioned electrical transmission paths. And the above-mentioned control unit is used to output a working power to a corresponding electrical transmission path through one of the above-mentioned second input/output pins, so that the driving chip can be activated by using the working power, and then the driving chip can work by receiving Each first input/output pin other than the first input/output pin of the power supply outputs a bit of data to the corresponding electrical transmission path. The control unit is also used to determine whether each bit of data received conforms to its corresponding preset bit value, so as to determine each electrical transmission path and the electrical connection between the electrical transmission path and the first input/output pin Whether there is a failure event.
本发明另提出一种显示面板的驱动芯片，其包括有多个输入/输出接脚与一控制单元。所述的输入/输出接脚皆用以电性连接一传输接口。而所述的传输接口具有多个电性传递路径，且每一电性传递路径的其中一端用以电性连接上述输入/输出接脚的其中之一，而每一电性传递路径的另一端则用以电性连接同一检测电路。所述的控制单元用以判断驱动芯片是否有通过上述输入/输出接脚的其中之一而接收到一工作电源，进而被此工作电源所启动。当判断为是时，控制单元便利用接收上述工作电源的输入/输出接脚以外的每一输入/输出接脚输出一比特数据至一对应的电性传递路径。The present invention further provides a display panel driver chip, which includes a plurality of input/output pins and a control unit. The input/output pins are all used to electrically connect a transmission interface. The transmission interface has a plurality of electrical transmission paths, and one end of each electrical transmission path is used to electrically connect one of the above-mentioned input/output pins, and the other end of each electrical transmission path are used to electrically connect the same detection circuit. The control unit is used for judging whether the driving chip receives a working power through one of the input/output pins, and then is activated by the working power. When the judgment is yes, the control unit uses each input/output pin except the input/output pin receiving the working power to output a bit of data to a corresponding electrical transmission path.
本发明再提出一种显示模块，其包括有一显示面板、一传输接口以及一驱动芯片。所述的传输接口具有多个电性传递路径，且每一电性传递路径的其中一端用以电性连接同一检测电路。而所述的驱动芯片用以驱动显示面板，且此驱动芯片另具有多个输入/输出接脚，每一输入/输出接脚用以电性连接一对应的电性传递路径的另一端。此驱动芯片还用以判断是否有通过上述输入/输出接脚的其中之一而接收到一工作电源，进而被此工作电源所启动。当判断为是时，驱动芯片便利用接收上述工作电源的输入/输出接脚以外的每一输入/输出接脚输出一比特数据至一对应的电性传递路径。The present invention further provides a display module, which includes a display panel, a transmission interface and a driving chip. The transmission interface has multiple electrical transmission paths, and one end of each electrical transmission path is used to electrically connect the same detection circuit. The driving chip is used to drive the display panel, and the driving chip also has a plurality of input/output pins, and each input/output pin is used to electrically connect the other end of a corresponding electrical transmission path. The driver chip is also used for judging whether a working power is received through one of the input/output pins, and then activated by the working power. When the judgment is yes, the driver chip outputs a bit of data to a corresponding electrical transmission path by using each input/output pin except the input/output pin receiving the working power.
本发明又提出一种传输接口的检测方法。所述的传输接口电性连接一驱动芯片，而此驱动芯片电性连接一显示面板。上述的驱动芯片具有多个输入/输出接脚，而上述的传输接口具有多个电性传递路径，且每一电性传递路径的其中一端电性连接上述输入/输出接脚的其中之一。所述检测方法的步骤包括：通过上述电性传递路径的其中之一而传递一工作电源至一对应的输入/输出接脚，以便利用此工作电源启动驱动芯片；使驱动芯片通过接收上述工作电源的输入/输出接脚以外的每一输入/输出接脚输出一比特数据至一对应的电性传递路径；以及从每一电性传递路径的另一端接收比特数据，并判断接收到的每一比特数据是否符合其对应的预设比特值。The invention further proposes a detection method of the transmission interface. The transmission interface is electrically connected to a driving chip, and the driving chip is electrically connected to a display panel. The above-mentioned driving chip has multiple input/output pins, and the above-mentioned transmission interface has multiple electrical transmission paths, and one end of each electrical transmission path is electrically connected to one of the above-mentioned input/output pins. The steps of the detection method include: passing a working power to a corresponding input/output pin through one of the above-mentioned electrical transmission paths, so as to use the working power to start the driver chip; making the driver chip receive the above-mentioned working power Each input/output pin other than the input/output pin outputs a bit of data to a corresponding electrical transmission path; and receives bit data from the other end of each electrical transmission path, and judges each received Whether the bit data conforms to its corresponding preset bit value.
本发明解决前述问题的方式，乃是改变检测电路与显示面板的驱动芯片的设计，并使此二者应用前述的检测方法来检测显示数据的传输路径是否有问题。由于驱动芯片在接收到检测电路提供的工作电源之后，便会通过传输接口传送比特数据给检测电路来自动进行比特值的对比，因此本发明不仅可以依据对比结果来快速地检测出显示数据的传输路径是否有问题，也可以依据对比结果迅速地找出传输路径中有问题的位置。The method of the present invention to solve the above-mentioned problems is to change the design of the detection circuit and the driving chip of the display panel, and make them use the above-mentioned detection method to detect whether there is a problem in the transmission path of the display data. After the drive chip receives the working power provided by the detection circuit, it will transmit the bit data to the detection circuit through the transmission interface to automatically compare the bit values, so the present invention can not only quickly detect the transmission of display data according to the comparison result Whether there is a problem with the path, you can also quickly find out the location of the problem in the transmission path according to the comparison result.
为让本发明的上述和其他目的、特征和优点能更明显易懂，下文特举较佳实施例，并配合所附附图，作详细说明如下。In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.
附图说明 Description of drawings
图1绘示有依照本发明一实施例的检测电路、依照本发明一实施例的显示面板的驱动芯片以及包含有上述驱动芯片的显示模块；FIG. 1 illustrates a detection circuit according to an embodiment of the present invention, a driving chip of a display panel according to an embodiment of the present invention, and a display module including the above-mentioned driving chip;
图2为依照本发明一实施例的传输接口的检测方法。FIG. 2 is a detection method of a transmission interface according to an embodiment of the present invention.
其中，附图标记Among them, reference signs
10：检测电路10: Detection circuit
12：显示模块12: Display module
100、126：控制单元100, 126: control unit
110：储存单元110: storage unit
112-1～112-N：第二输入/输出接脚112-1～112-N: the second input/output pin
120：显示面板120: display panel
122：驱动芯片122: Driver chip
122-1～122-N：第一输入/输出接脚122-1～122-N: the first input/output pin
124：传输接口124: transmission interface
124-1～124-N：电性传递路径124-1～124-N: electrical transmission path
VDD：工作电源VDD: working power supply
S202～S206：步骤S202～S206: steps
具体实施方式 Detailed ways
图1绘示依照本发明一实施例的检测电路、依照本发明一实施例的显示面板的驱动芯片以及包含有上述驱动芯片的显示模块。在图1中，标示10即表示为所述的检测电路，而标示12即表示为所述的显示模块。而其中显示模块12又具有显示面板120、驱动芯片122以及传输接口124。所述的驱动芯片122即是用以驱动显示面板120，且此驱动芯片122具有控制单元126与多个第一输入/输出接脚，而这些第一输入/输出接脚以122-1～122-N来标示。上述的传输接口124则具有多个电性传递路径，分别以标号124-1～124-N来标示。每一电性传递路径的其中一端电性连接上述第一输入/输出接脚的其中之一。至于检测电路10，其具有控制单元100、储存单元110与多个第二输入/输出接脚，而这些第二输入/输出接脚分别以112-1～112-N来表示。每一第二输入/输出接脚用以电性连接上述电性传递路径的其中之一的另一端。上述的储存单元110用以储存多个预设比特值，以便控制单元100进行存取(详后述)。FIG. 1 illustrates a detection circuit according to an embodiment of the present invention, a driving chip of a display panel according to an embodiment of the present invention, and a display module including the above-mentioned driving chip. In FIG. 1 , the mark 10 represents the detection circuit, and the mark 12 represents the display module. The display module 12 further has a display panel 120 , a driver chip 122 and a transmission interface 124 . The driver chip 122 is used to drive the display panel 120, and the driver chip 122 has a control unit 126 and a plurality of first input/output pins, and these first input/output pins are denoted as 122-1˜122 -N to mark. The above-mentioned transmission interface 124 has a plurality of electrical transmission paths, which are respectively marked with reference numerals 124-1˜124-N. One end of each electrical transmission path is electrically connected to one of the first input/output pins. As for the detection circuit 10, it has a control unit 100, a storage unit 110 and a plurality of second input/output pins, and these second input/output pins are represented by 112-1˜112-N respectively. Each second input/output pin is used for electrically connecting the other end of one of the above-mentioned electrical transmission paths. The above-mentioned storage unit 110 is used for storing a plurality of preset bit values, so as to be accessed by the control unit 100 (details will be described later).
检测电路10的控制单元100用以通过上述第二输入/输出接脚的其中之一而输出一工作电源VDD至一对应的电性传递路径，例如是通过第二输入/输出接脚112-1来传送工作电源VDD至电性传递路径124-1，以便利用此工作电源VDD来启动驱动芯片122。而驱动芯片122的控制单元126则会去判断驱动芯片122是否有通过这些第一输入/输出接脚的其中之一而接收到工作电源VDD，进而被此工作电源所启动。当判断为是时，驱动芯片122的控制单元126便会通过接收工作电源VDD的第一输入/输出接脚122-1以外的每一第一输入/输出接脚(即第一输入/输出接脚122-2～122-N)来分别输出一比特数据至一对应的电性传递路径。也就是说，驱动芯片122会通过第一输入/输出接脚122-2～122-N来输出N-1个比特数据至电性传递路径124-2～124-N。The control unit 100 of the detection circuit 10 is used to output a working power VDD to a corresponding electrical transmission path through one of the above-mentioned second input/output pins, for example, through the second input/output pin 112-1 to transmit the working power VDD to the electrical transmission path 124 - 1 , so as to use the working power VDD to start the driving chip 122 . The control unit 126 of the driving chip 122 will determine whether the driving chip 122 receives the working power VDD through one of the first input/output pins, and then is activated by the working power. When the judgment is yes, the control unit 126 of the driver chip 122 will pass through every first input/output pin other than the first input/output pin 122-1 receiving the working power supply VDD (that is, the first input/output pin pins 122-2˜122-N) to respectively output one bit of data to a corresponding electrical transmission path. That is to say, the driving chip 122 outputs N−1 bits of data to the electrical transmission paths 124-2-124-N through the first input/output pins 122-2-122-N.
如此一来，检测电路10的控制单元100就可以通过第二输入/输出接脚112-2～112-N来接收这些比特数据，并从储存单元110读取出对应于这些比特数据的N-1个预设比特值，以判断接收到的每一比特数据是否符合其对应的预设比特值，借以进一步判断每一电性传递路径以及这些电性传递路径与上述的第一输入/输出接脚相电性连接处是否有发生故障事件，例如是短路事件或是断路事件。而当有任一接收到的比特数据不符合其对应的预设比特值时，检测电路10的控制单元100便判断为有发生故障事件，并进一步找出不符合其对应预设比特值的比特数据的数据传输路径。In this way, the control unit 100 of the detection circuit 10 can receive these bit data through the second input/output pins 112 - 2 ˜ 112 -N, and read the N-bit data corresponding to these bit data from the storage unit 110 . 1 preset bit value, to determine whether each bit of data received conforms to its corresponding preset bit value, so as to further judge each electrical transmission path and the connection between these electrical transmission paths and the above-mentioned first input/output interface Whether there is a fault event at the electrical connection of the leg phase, such as a short circuit event or an open circuit event. When any received bit data does not conform to its corresponding preset bit value, the control unit 100 of the detection circuit 10 judges that there is a fault event, and further finds out the bit that does not conform to its corresponding preset bit value. The data transfer path of the data.
尽管在上述实施例中，检测电路10具有储存单元110来储存多个预设比特值，然此并非用以限制本发明，本领域普通技术人员当知道若是检测电路10的控制单元100本身具有储存空间(未绘示)，那么就可以直接利用此储存空间来储存这些预设比特值，如此便可将储存单元110省略不用。Although in the above-mentioned embodiment, the detection circuit 10 has a storage unit 110 to store a plurality of preset bit values, this is not intended to limit the present invention. space (not shown), then the storage space can be directly used to store these preset bit values, so that the storage unit 110 can be omitted.
此外，驱动芯片122的控制单元126可以是利用第一输入/输出接脚122-2～122-N同时输出N-1个比特数据，或者是利用第一输入/输出接脚122-2～122-N分批输出N-1个比特数据，又或者是利用第一输入/输出接脚122-2～122-N依一预设顺序输出N-1个比特数据。也就是说，驱动芯片122输出比特数据的方式可依照实际需要而设计。In addition, the control unit 126 of the driver chip 122 can use the first input/output pins 122-2-122-N to simultaneously output N-1 bits of data, or use the first input/output pins 122-2-122 -N outputting N−1 bit data in batches, or outputting N−1 bit data in a preset order by using the first input/output pins 122 - 2 ˜ 122 -N. That is to say, the manner in which the driver chip 122 outputs bit data can be designed according to actual needs.
当然，驱动芯片122的控制单元126也可以是通过第一输入/输出接脚122-2～122-N输出多于N-1个比特数据，其例如是采每次输出N-1个比特数据，且分成好几次输出的方式来执行。详细来说，驱动芯片122的控制单元126可利用第一输入/输出接脚122-2～122-N输出N-1个比特数据至对应的电性传递路径124-2～124-N后，更再次利用第一输入/输出接脚122-2～122-N输出N-1个比特数据至对应的电性传递路径124-2～124-N。当然，第一输入/输出接脚122-2～122-N在相邻二时间点所输出的二组比特数据中，至少会有部分比特数据的比特值不同。如此一来，便可对每一数据传输路径进行更精确地确认。Of course, the control unit 126 of the driver chip 122 can also output more than N-1 bits of data through the first input/output pins 122-2-122-N, for example, outputting N-1 bits of data each time , and divided into several output ways to execute. In detail, the control unit 126 of the driver chip 122 can use the first input/output pins 122-2-122-N to output N-1 bits of data to the corresponding electrical transmission paths 124-2-124-N, Furthermore, the first input/output pins 122-2-122-N are used again to output N−1 bit data to the corresponding electrical transmission paths 124-2-124-N. Of course, among the two sets of bit data output by the first input/output pins 122 - 2 ˜ 122 -N at two adjacent time points, at least some of the bit data have different bit values. In this way, each data transmission path can be confirmed more accurately.
值得一提的是，上述的传输接口124可以是一外围串行接口(SPI)、-RGB接口(RGB interface)、一中央处理器接口(CPU interface)、一移动显示数字接口(MDDI)或是一移动行业处理器接口(MIPI)。It is worth mentioning that the above-mentioned transmission interface 124 can be a peripheral serial interface (SPI), -RGB interface (RGB interface), a central processing unit interface (CPU interface), a mobile display digital interface (MDDI) or A Mobile Industry Processor Interface (MIPI).
通过上述实施例的教示，本领域普通技术人员当可归纳出一些基本的检测步骤，一如图2所示。图2为依照本发明一实施例的传输接口的检测方法。请参照图2，所述的传输接口电性连接一驱动芯片，而此驱动芯片电性连接一显示面板。此驱动芯片具有多个输入/输出接脚，而传输接口具有多个电性传递路径，且每一电性传递路径的其中一端电性连接上述输入/输出接脚的其中之一。所述的检测方法包括有下列步骤：通过上述电性传递路径的其中之一而传递一工作电源至一对应的输入/输出接脚，以便利用此工作电源启动上述驱动芯片(如步骤S202所示)；使驱动芯片通过接收工作电源的输入/输出接脚以外的每一输入/输出接脚输出一比特数据至一对应的电性传递路径(如步骤S204所示)；以及从每一电性传递路径的另一端接收上述比特数据，并判断接收到的每一比特数据是否符合其对应的预设比特值(如步骤S206所示)，借以判断上述电性传递路径以及上述电性传递路径与上述输入/输出接脚相电性连接处是否有发生一故障事件。Through the teachings of the above embodiments, those skilled in the art should be able to summarize some basic detection steps, as shown in FIG. 2 . FIG. 2 is a detection method of a transmission interface according to an embodiment of the present invention. Please refer to FIG. 2 , the transmission interface is electrically connected to a driver chip, and the driver chip is electrically connected to a display panel. The driver chip has multiple input/output pins, and the transmission interface has multiple electrical transmission paths, and one end of each electrical transmission path is electrically connected to one of the above-mentioned input/output pins. The detection method includes the following steps: passing a working power to a corresponding input/output pin through one of the above-mentioned electrical transmission paths, so as to use the working power to start the above-mentioned driver chip (shown in step S202 ); make the driver chip output a bit of data to a corresponding electrical transmission path through each input/output pin other than the input/output pin receiving the working power (as shown in step S204); and from each electrical The other end of the transmission path receives the above-mentioned bit data, and judges whether each bit of data received conforms to its corresponding preset bit value (as shown in step S206), so as to judge the above-mentioned electrical transmission path and the above-mentioned electrical transmission path and Whether a fault event occurs at the phase electrical connection of the above-mentioned input/output pins.
综上所述，本发明解决前述问题的方式，乃是改变检测电路与显示面板的驱动芯片的设计，并使此二者应用前述的检测方法来检测显示数据的传输路径是否有问题。由于驱动芯片在接收到检测电路提供的工作电源之后，便会通过传输接口传送比特数据给检测电路来自动进行比特值的对比，因此本发明不仅可以依据对比结果来快速地检测出显示数据的传输路径是否有问题，也可以依据对比结果迅速地找出传输路径中有问题的位置。To sum up, the method of the present invention to solve the above-mentioned problems is to change the design of the detection circuit and the driver chip of the display panel, and make them use the above-mentioned detection method to detect whether there is a problem in the transmission path of the display data. After the drive chip receives the working power provided by the detection circuit, it will transmit the bit data to the detection circuit through the transmission interface to automatically compare the bit values, so the present invention can not only quickly detect the transmission of display data according to the comparison result Whether there is a problem with the path, you can also quickly find out the location of the problem in the transmission path according to the comparison result.
当然，本发明还可有其它多种实施例，在不背离本发明精神及其实质的情况下，熟悉本领域的技术人员当可根据本发明作出各种相应的改变和变形，但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding Changes and deformations should belong to the scope of protection of the appended claims of the present invention.
Claims (17)
1.一种检测电路，其特征在于，用于检测一显示模块，该显示模块具有一显示面板、一驱动芯片与一传输接口，该驱动芯片用以驱动该显示面板，且该驱动芯片另具有多个第一输入/输出接脚，而该传输接口具有多个电性传递路径，且每一电性传递路径的其中一端电性连接这些第一输入/输出接脚的其中之一，该检测电路包括：1. A detection circuit, characterized in that it is used to detect a display module, the display module has a display panel, a driver chip and a transmission interface, the driver chip is used to drive the display panel, and the driver chip has another A plurality of first input/output pins, and the transmission interface has a plurality of electrical transmission paths, and one end of each electrical transmission path is electrically connected to one of the first input/output pins, the detection Circuit includes: 多个第二输入/输出接脚，每一第二输入/输出接脚用以电性连接这些电性传递路径的其中之一的另一端；以及a plurality of second input/output pins, each second input/output pin is used to electrically connect the other end of one of the electrical transmission paths; and 一控制单元，用以通过这些第二输入/输出接脚的其中之一而输出一工作电源至一对应的电性传递路径，以便利用该工作电源启动该驱动芯片，进而使该驱动芯片通过接收该工作电源的第一输入/输出接脚以外的每一第一输入/输出接脚输出一比特数据至一对应的电性传递路径，该控制单元还用以判断接收到的每一比特数据是否符合其对应的预设比特值，借以判断这些电性传递路径以及这些电性传递路径与这些第一输入/输出接脚相电性连接处是否有发生一故障事件。A control unit is used to output a working power to a corresponding electrical transmission path through one of the second input/output pins, so as to use the working power to start the driver chip, and then make the driver chip receive Each first input/output pin other than the first input/output pin of the working power supply outputs a bit of data to a corresponding electrical transmission path, and the control unit is also used to determine whether each bit of data received is According to the corresponding preset bit values, it is judged whether a failure event occurs in the electrical transmission paths and the electrical connections between the electrical transmission paths and the first input/output pins. 2.根据权利要求1所述的检测电路，其特征在于，其中当有任一接收到的比特数据不符合其对应的预设比特值时，该控制单元便判断为有发生该故障事件。2. The detection circuit according to claim 1, wherein when any received bit data does not conform to its corresponding preset bit value, the control unit determines that the fault event has occurred. 3.根据权利要求1所述的检测电路，其特征在于，其中该控制单元还具有一储存空间，而该储存空间用以储存这些预设比特值。3. The detection circuit according to claim 1, wherein the control unit further has a storage space, and the storage space is used to store the preset bit values. 4.根据权利要求1所述的检测电路，其特征在于，其中该检测电路还包括：4. The detection circuit according to claim 1, wherein the detection circuit further comprises: 一储存单元，用以储存这些预设比特值，以便该控制单元进行存取。A storage unit is used for storing these preset bit values so as to be accessed by the control unit. 5.一种显示面板的驱动芯片，其特征在于，包括：5. A driver chip for a display panel, comprising: 多个输入/输出接脚，用以电性连接一传输接口，其中该传输接口具有多个电性传递路径，且每一电性传递路径的其中一端用以电性连接这些输入/输出接脚的其中之一，而每一电性传递路径的另一端则用以电性连接同一检测电路；以及A plurality of input/output pins are used to electrically connect a transmission interface, wherein the transmission interface has a plurality of electrical transmission paths, and one end of each electrical transmission path is used to electrically connect these input/output pins one of them, and the other end of each electrical transmission path is used to electrically connect the same detection circuit; and 一控制单元，用以判断该驱动芯片是否通过这些输入/输出接脚的其中之一而接收到一工作电源，进而被该工作电源所启动，当判断为是时，该控制单元便利用接收该工作电源的输入/输出接脚以外的每一输入/输出接脚输出一比特数据至一对应的电性传递路径。A control unit is used to determine whether the driver chip receives a working power through one of the input/output pins, and then is started by the working power. Each input/output pin other than the input/output pin of the working power outputs a bit of data to a corresponding electrical transmission path. 6.根据权利要求5所述的驱动芯片，其特征在于，其中该控制单元利用接收该工作电源的输入/输出接脚以外的这些输入/输出接脚同时、分批或依一预设顺序输出这些比特数据。6. The driver chip according to claim 5, wherein the control unit utilizes the input/output pins other than the input/output pins receiving the working power to output simultaneously, in batches or in a preset order These bits of data. 7.根据权利要求5所述的驱动芯片，其特征在于，其中该控制单元在利用接收该工作电源的输入/输出接脚以外的每一输入/输出接脚输出一比特数据至一对应的电性传递路径后，更再次利用接收该工作电源的输入/输出接脚以外的每一输入/输出接脚输出一比特数据至一对应的电性传递路径。7. The driver chip according to claim 5, wherein the control unit outputs a bit of data to a corresponding power supply using each input/output pin other than the input/output pin receiving the working power. After the electrical transmission path, each input/output pin other than the input/output pin receiving the working power is used again to output a bit of data to a corresponding electrical transmission path. 8.根据权利要求7所述的驱动芯片，其特征在于，其中在接收该工作电源的输入/输出接脚以外的这些输入/输出接脚在相邻二时间点所输出的二组比特数据中，至少有部分比特数据的比特值不同。8. The drive chip according to claim 7, wherein the two sets of bit data output by the input/output pins other than the input/output pins receiving the operating power at two adjacent time points , the bit values of at least some bit data are different. 9.一种显示模块，其特征在于，包括：9. A display module, characterized in that it comprises: 一显示面板；a display panel; 一传输接口，具有多个电性传递路径，每一电性传递路径的其中一端用以电性连接同一检测电路；以及A transmission interface has a plurality of electrical transmission paths, one end of each electrical transmission path is used to electrically connect the same detection circuit; and 一驱动芯片，用以驱动该显示面板，且该驱动芯片另具有多个输入/输出接脚，每一输入/输出接脚用以电性连接一对应的电性传递路径的另一端，该驱动芯片还用以判断是否有通过这些输入/输出接脚的其中之一而接收到一工作电源，进而被该工作电源所启动，当判断为是时，该驱动芯片便利用接收该工作电源的输入/输出接脚以外的每一输入/输出接脚输出一比特数据至一对应的电性传递路径。A driver chip is used to drive the display panel, and the driver chip also has a plurality of input/output pins, each input/output pin is used to electrically connect the other end of a corresponding electrical transmission path, the driver The chip is also used to judge whether a working power is received through one of these input/output pins, and then started by the working power. Each input/output pin other than the /output pin outputs a bit of data to a corresponding electrical transfer path. 10.根据权利要求9所述的显示模块，其特征在于，其中该驱动芯片利用接收该工作电源的输入/输出接脚以外的这些输入/输出接脚同时、分批或依一预设顺序输出这些比特数据。10. The display module according to claim 9, wherein the driver chip uses the input/output pins other than the input/output pins receiving the working power to output simultaneously, in batches or in a preset order These bits of data. 11.根据权利要求9所述的显示模块，其特征在于，其中该驱动芯片在利用接收该工作电源的输入/输出接脚以外的每一输入/输出接脚输出一比特数据至一对应的电性传递路径后，更再次利用接收该工作电源的输入/输出接脚以外的每一输入/输出接脚输出一比特数据至一对应的电性传递路径。11. The display module according to claim 9, wherein the driver chip outputs one bit of data to a corresponding power supply using each input/output pin other than the input/output pin receiving the operating power. After the electrical transmission path, each input/output pin other than the input/output pin receiving the working power is used again to output a bit of data to a corresponding electrical transmission path. 12.根据权利要求11所述的显示模块，其特征在于，其中在接收该工作电源的输入/输出接脚以外的这些输入/输出接脚在相邻二时间点所输出的二组比特数据中，至少有部份比特数据的比特值不同。12. The display module according to claim 11, wherein the two sets of bit data output by the input/output pins other than the input/output pins receiving the operating power at two adjacent time points , at least some of the bit data have different bit values. 13.一种传输接口的检测方法，其特征在于，所述的传输接口电性连接一驱动芯片，而该驱动芯片电性连接一显示面板，该驱动芯片具有多个输入/输出接脚，而该传输接口具有多个电性传递路径，且每一电性传递路径的其中一端电性连接这些输入/输出接脚的其中之一，该检测方法包括：13. A detection method for a transmission interface, characterized in that the transmission interface is electrically connected to a driver chip, and the driver chip is electrically connected to a display panel, the driver chip has a plurality of input/output pins, and The transmission interface has multiple electrical transmission paths, and one end of each electrical transmission path is electrically connected to one of the input/output pins, and the detection method includes: 通过这些电性传递路径的其中之一而传递一工作电源至一对应的输入/输出接脚，以便利用该工作电源启动该驱动芯片；transmitting an operating power to a corresponding input/output pin through one of the electrical transmission paths, so as to use the operating power to activate the driver chip; 使该驱动芯片通过接收该工作电源的输入/输出接脚以外的每一输入/输出接脚输出一比特数据至一对应的电性传递路径；以及making the driver chip output a bit of data to a corresponding electrical transmission path through each input/output pin other than the input/output pin receiving the working power; and 从每一电性传递路径的另一端接收这些比特数据，并判断接收到的每一比特数据是否符合其对应的预设比特值。The bit data is received from the other end of each electrical transmission path, and whether each received bit data conforms to its corresponding preset bit value is judged. 14.根据权利要求13所述的检测方法，其特征在于，其中当有任一接收到的比特数据不符合其对应的预设比特值时，便判断为有发生该故障事件。14. The detection method according to claim 13, wherein when any received bit data does not conform to its corresponding preset bit value, it is determined that the fault event has occurred. 15.根据权利要求13所述的检测方法，其特征在于，其中利用接收该工作电源的输入/输出接脚以外的这些输入/输出接脚同时、分批或依一预设顺序输出这些比特数据。15. The detection method according to claim 13, wherein the input/output pins other than the input/output pin receiving the working power are used to output the bit data simultaneously, in batches or in a preset order . 16.根据权利要求13所述的检测方法，其特征在于，其中在利用接收该工作电源的输入/输出接脚以外的每一输入/输出接脚输出一比特数据至一对应的电性传递路径后，更再次利用接收该工作电源的输入/输出接脚以外的每一输入/输出接脚输出一比特数据至一对应的电性传递路径。16. The detection method according to claim 13, wherein each input/output pin other than the input/output pin receiving the operating power outputs a bit of data to a corresponding electrical transmission path Afterwards, each input/output pin other than the input/output pin receiving the operating power is used again to output a bit of data to a corresponding electrical transmission path. 17.根据权利要求16所述的检测方法，其特征在于，其中在接收该工作电源的输入/输出接脚以外的这些输入/输出接脚在相邻二时间点所输出的二组比特数据中，至少有部分比特数据的比特值不同。17. The detection method according to claim 16, wherein in the two sets of bit data output by the input/output pins other than the input/output pins receiving the working power at two adjacent time points , the bit values of at least some bit data are different.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100133837A TWI436080B (en) | 2011-09-20 | 2011-09-20 | Detecting circuit, driver ic for display panel, display module, and detecting method for transmission interface |
| TW100133837 | 2011-09-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102509532A true CN102509532A (en) | 2012-06-20 |
| CN102509532B CN102509532B (en) | 2014-04-16 |
Family
ID=46221608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110371728.1A Active CN102509532B (en) | 2011-09-20 | 2011-11-10 | Detection circuit, driving chip, display module and detection method of transmission interface |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102509532B (en) |
| TW (1) | TWI436080B (en) |
Cited By (2)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105528989A (en) * | 2016-01-12 | 2016-04-27 | 友达光电股份有限公司 | Driver and operation method thereof |
| CN107452305A (en) * | 2017-08-17 | 2017-12-08 | 西安易朴通讯技术有限公司 | A kind of current sensing means detected for screen, system and method |
Families Citing this family (1)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI585727B (en) * | 2014-08-28 | 2017-06-01 | 群創光電股份有限公司 | Driving circuit board, display module and automatic testing method of display panel |
Citations (4)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6115305A (en) * | 1999-06-15 | 2000-09-05 | Atmel Corporation | Method and apparatus for testing a video display chip |
| CN101458906A (en) * | 2007-12-11 | 2009-06-17 | 乐金显示有限公司 | Liquid crystal display |
| CN101887103A (en) * | 2010-04-07 | 2010-11-17 | 珠海天威技术开发有限公司 | Chip tester and test method thereof |
| CN101958092A (en) * | 2009-07-17 | 2011-01-26 | 友达光电(厦门)有限公司 | Test conversion module and display screen test method |
-
2011
- 2011-09-20 TW TW100133837A patent/TWI436080B/en active
- 2011-11-10 CN CN201110371728.1A patent/CN102509532B/en active Active
Patent Citations (4)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6115305A (en) * | 1999-06-15 | 2000-09-05 | Atmel Corporation | Method and apparatus for testing a video display chip |
| CN101458906A (en) * | 2007-12-11 | 2009-06-17 | 乐金显示有限公司 | Liquid crystal display |
| CN101958092A (en) * | 2009-07-17 | 2011-01-26 | 友达光电(厦门)有限公司 | Test conversion module and display screen test method |
| CN101887103A (en) * | 2010-04-07 | 2010-11-17 | 珠海天威技术开发有限公司 | Chip tester and test method thereof |
Cited By (4)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105528989A (en) * | 2016-01-12 | 2016-04-27 | 友达光电股份有限公司 | Driver and operation method thereof |
| US10056058B2 (en) | 2016-01-12 | 2018-08-21 | Au Optronics Corporation | Driver and operation method thereof |
| CN107452305A (en) * | 2017-08-17 | 2017-12-08 | 西安易朴通讯技术有限公司 | A kind of current sensing means detected for screen, system and method |
| CN107452305B (en) * | 2017-08-17 | 2023-07-14 | 西安易朴通讯技术有限公司 | Current detection device, system and method for screen detection |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI436080B (en) | 2014-05-01 |
| CN102509532B (en) | 2014-04-16 |
| TW201314226A (en) | 2013-04-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104603627B (en) | 2017-11-03 | Semiconductor device and battery voltage monitoring device |
| US20080294939A1 (en) | 2008-11-27 | Debugging device and method using the lpc/pci bus |
| CN102968946B (en) | 2015-07-08 | Detection circuit of display panel |
| JP6033913B2 (en) | 2016-11-30 | Universal test platform and test method thereof |
| TW201527770A (en) | 2015-07-16 | Detection device for detedting electronic components and detection method thereof |
| US20120005656A1 (en) | 2012-01-05 | Adapter and debugging method using the same |
| US20170060214A1 (en) | 2017-03-02 | Indication system and electronic device utilizing the same |
| US20070139838A1 (en) | 2007-06-21 | Current overload detecting system and method |
| CN102509532A (en) | 2012-06-20 | Detection circuit, driving chip, display module and detection method of transmission interface |
| US20150295817A1 (en) | 2015-10-15 | Redundancy device unit and method for determining fault in industrial control system, industrial control system and industrial system comprising redundancy device unit |
| TWI694336B (en) | 2020-05-21 | Bus system and detecting method thereof |
| US10274534B2 (en) | 2019-04-30 | Chip and reading circuit for die ID in chip |
| US9158609B2 (en) | 2015-10-13 | Universal serial bus testing device |
| TWI449926B (en) | 2014-08-21 | Transmitting interface and method for determining transmitting signals |
| CN105988542A (en) | 2016-10-05 | Computer stick expansion system and power management method thereof |
| CN102176301B (en) | 2015-09-02 | A kind of LED control device of system intelligence monitoring and LED control system |
| US9959235B2 (en) | 2018-05-01 | Input/output switching method, electronic device, and system for a server |
| TWI559134B (en) | 2016-11-21 | Computing system and method for respectively displaying information corresponding to host under booting state or standby state |
| CN205028543U (en) | 2016-02-10 | Thing networking comprehensive experiment case |
| CN203338238U (en) | 2013-12-11 | Multifunctional pin circuit device |
| CN201828628U (en) | 2011-05-11 | Connector terminal fault detector |
| CN102221650B (en) | 2013-08-28 | Test modules for adapter components |
| CN111478714A (en) | 2020-07-31 | Electronic device and signal transmission method thereof |
| US20240345164A1 (en) | 2024-10-17 | Testing system and testing method |
| CN205027539U (en) | 2016-02-10 | Fault diagnostic of electronic industry vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 2012-06-20 | C06 | Publication | |
| 2012-06-20 | PB01 | Publication | |
| 2012-07-18 | C10 | Entry into substantive examination | |
| 2012-07-18 | SE01 | Entry into force of request for substantive examination | |
| 2014-04-16 | C14 | Grant of patent or utility model | |
| 2014-04-16 | GR01 | Patent grant |