WO2015149526A1 - 一种显示模组测试与展示系统及其使用方法 - Google Patents

一种显示模组测试与展示系统及其使用方法 Download PDF

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Publication number
WO2015149526A1
WO2015149526A1 PCT/CN2014/091389 CN2014091389W WO2015149526A1 WO 2015149526 A1 WO2015149526 A1 WO 2015149526A1 CN 2014091389 W CN2014091389 W CN 2014091389W WO 2015149526 A1 WO2015149526 A1 WO 2015149526A1
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Prior art keywords
display module
display
control unit
signal
mipi
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PCT/CN2014/091389
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English (en)
French (fr)
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王宇飞
李天马
左清成
朱墨雨
刘淼
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京东方科技集团股份有限公司
京东方现代(北京)显示技术有限公司
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Publication of WO2015149526A1 publication Critical patent/WO2015149526A1/zh

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/006Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays

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  • the present invention relates to the field of display technologies, and in particular, to a display module test and display system and a method for using the same.
  • the display module In the production process of the display panel, generally after the preparation of the display module (including the array substrate, the color film substrate, the liquid crystal layer, etc.), the display module needs to be tested before the corresponding driving circuit is connected to form the display panel; In addition, display modules are often used in various exhibition venues for promotion purposes, etc. In these cases, it is necessary to provide a display module with a system capable of providing a large number of pictures for testing or display, and requires the same. The system is easy to operate and easy to carry.
  • the existing display module test system can provide a display signal for the display module to drive the display module for display.
  • the display module test system must be turned off before the display module can be removed from the display module test system and a new display module is installed, and finally The display module test system is turned on to test the new display module. This is because when the display module test system continuously outputs the display signal, the loading and unloading display module may cause damage to the device.
  • the above operation of replacing the display module has a cumbersome and time consuming problem.
  • the technical problem to be solved by the present invention is to solve the problem that the existing display module test system needs to be restarted when replacing the display module, and provide a display module test and display system and a use method thereof, which can realize the replacement of the display module. There is no need to restart the test system, and the operation is simple and time-consuming.
  • the technical solution adopted to solve the technical problem of the present invention includes a display module testing and display system, which includes:
  • a storage unit for storing data information used in testing and presentation
  • control unit for acquiring stored data information from the storage unit and generating an image control signal based on the image information in the data information
  • An interface unit configured to connect a display module to be tested or displayed, and the control unit, wherein the interface unit is further configured to convert an image control signal provided by the control unit into a display signal, thereby being to be tested or displayed
  • the display module provides a display signal to drive the display module to be tested or displayed for display
  • a manipulation unit configured to receive a manipulation instruction from the user and transmit a manipulation signal corresponding to the manipulation instruction to the control unit;
  • the control unit receives the steering signal from the steering unit, and controls the interface unit to interrupt or resume the output of the display signal according to the received steering signal while remaining in operation.
  • the interface unit includes: an MIPI bridge board electrically connected to the control unit, configured to receive an image control signal provided by the control unit and convert the image control signal into an MIPI signal as the display signal; a connection board electrically connected to the MIPI bridge board, configured to connect the display module to be tested or displayed, the connection board is further configured to provide the MIPI signal provided by the MIPI bridge board to the display to be tested or displayed Module.
  • an MIPI bridge board electrically connected to the control unit, configured to receive an image control signal provided by the control unit and convert the image control signal into an MIPI signal as the display signal
  • a connection board electrically connected to the MIPI bridge board, configured to connect the display module to be tested or displayed, the connection board is further configured to provide the MIPI signal provided by the MIPI bridge board to the display to be tested or displayed Module.
  • the MIPI bridge board comprises: a bridge chip for converting an image control signal into a MIPI signal; a signal input/output board electrically connected to the bridge chip and the control unit for providing an image provided by the control unit A control signal is transmitted to the bridge chip, and the MIPI signal provided by the bridge chip is output to the connection board.
  • the MIPI bridge board further includes: a clock board electrically connected to the bridge chip, configured to synchronize the clock of the control unit with the interface unit; and a power board electrically connected to the bridge chip, For powering the bridge chip and the display module to be tested or displayed.
  • the connecting board includes: a connector electrically connected to the MIPI bridge board, configured to transmit an MIPI signal provided by the MIPI bridge board to the Test module for testing or display.
  • the connecting board is further configured to provide a backlight required for display for the display module to be tested or displayed.
  • connection board includes a backlight module for providing a backlight required for display for the display module to be tested or displayed;
  • the backlight module includes a driving chip and at least one light source electrically connected to the driving chip
  • the driving chip is configured to control the light source to emit light.
  • the MIPI bridge board comprises at least 4 sets of channels, each set having a bandwidth of at least 1 Gbps.
  • the storage unit is electrically connected to the control unit through an interface; or the storage unit is integrated with the control unit.
  • control unit is a processor with a frequency of 1 GHz or more.
  • the technical solution adopted to solve the technical problem of the present invention is a method for using the above display module test and display system, which comprises the steps of:
  • control unit sends a manipulation instruction to the control unit, so that the control unit controls the output of the interface unit to interrupt the display signal according to the manipulation instruction while maintaining the running state;
  • the control unit can issue a manipulation command to the control unit through the control unit, so that the interface unit interrupts the output of the display signal (the control unit remains in operation), so that the display module can be restarted without restarting.
  • Direct replacement of the display module in the case of a group test and display system simplifies operation and saves time.
  • FIG. 1 is a block diagram showing the structure of a display module testing and display system according to an embodiment of the invention.
  • a display module testing and display system includes:
  • a storage unit for storing data information used in testing and presentation
  • control unit electrically connected to the storage unit, configured to generate an image control signal based on image information in data information stored by the storage unit;
  • An interface unit electrically connected to the control unit, configured to connect a display module to be tested or displayed, the interface unit is further configured to convert an image control signal provided by the control unit into a display signal, and send the signal to the test Or the displayed display module provides a display signal to drive the display module to be tested or displayed for display;
  • control unit electrically connected to the control unit, configured to receive a manipulation command from a user and transmit a manipulation signal corresponding to the manipulation command to the control unit;
  • the control unit is further configured to receive the manipulation signal from the manipulation unit, and control the interface unit to interrupt or resume the output of the display signal according to the received manipulation signal while remaining in operation.
  • a display module test and display system includes a control unit 10, a storage unit 20, a manipulation unit 30, and an interface unit 40.
  • the control unit 10 is electrically connected to the storage unit 20, the manipulation unit 30, and the interface unit 40, respectively.
  • the storage unit 20 is configured to store data information (including test programs and image information, etc.) used in testing and display;
  • the manipulation unit 30 is configured to provide a human machine interface, so that the user can send a manipulation signal to the control unit 10 through the manipulation unit 30;
  • the control unit 10 is configured to generate an image control signal based on the image information in the data information stored in the storage unit 20 (in the embodiment, the image control signal is an RGB signal as an example, and of course, it may also be other forms of signals such as RGBW). And transmitting the RGB signal (ie, the image control signal) to the interface unit 40; meanwhile, when receiving the control signal from the manipulation unit 30, the control unit 10 can control the interface unit according to the received control signal while remaining in the running state. 40 interrupt or resume the output of the signal.
  • the interface unit 40 is configured to connect the display module 50 to be tested or displayed, and convert the RGB signal (ie, image control signal) received from the control unit 10 into a display module 50 to be tested or displayed.
  • the display signal (such as the MIPI signal, which is described by way of example in this embodiment) is used to drive the display module 50 to be tested or displayed for display by using a MIPI (Mobi Le Industry Processor Interface) signal.
  • the display module 50 to be tested or displayed may be a high-resolution display module for testing, display and promotion, such as a small-sized display module with resolutions of HD720 (720 ⁇ 1280) and FHD (1200 ⁇ 1920). Group, especially suitable for liquid crystal display modules such as mobile phones.
  • control unit 30 can send a control signal to the control unit 10, so that the interface unit 40 interrupts or restores the output of the MIPI signal (ie, the display signal) (but the control unit 10 still Keep running), in this way, the display module 50 can be directly replaced without restarting the display module test and display system, which simplifies operation and saves time.
  • the control unit 10 preferably includes a processor with a frequency above 1 GHz, such as a reduced instruction set microprocessor, and more preferably may include ARM A8 processing. (for the ARM A8 platform chip, such as the Cortex-A8 core board with a frequency of 1GHz), embedded Linux system or Android system (preferably Linux system). Because the ARM processor has its own development and debugging system, compared with the display module test system in the prior art, the display module test and display system of the processor using the ARM architecture is more powerful and simpler to develop. The cost is also lower.
  • ARM A8 processing for the ARM A8 platform chip, such as the Cortex-A8 core board with a frequency of 1GHz
  • embedded Linux system preferably Linux system
  • the interface unit 40 is also capable of providing a display module to be tested or displayed with a backlight required for display.
  • the interface unit 40 may include an MIPI bridge board 41 and a connection board 42 that are electrically connected to each other.
  • the control unit 10 may be provided with an image control signal output interface (not shown in FIG. 1 , and the RGB signal output interface is taken as an example in the embodiment).
  • the MIPI bridge board 41 is electrically connected to the RGB signal output interface for converting the RGB signals (ie, image control signals) output by the RGB signal output interface into MIPI signals (ie, display signals) and outputting to the connection board 42; the connection board 42 It is used to connect with the display module 50 to be tested or displayed, and output the MIPI signal to the display module 50 to be tested or displayed. That is, the RGB signal output interface in the control unit 10 is an RGB standard interface that is connected to the external high-resolution display module 50 for testing, display, and promotion through the MIPI bridge board 41 and the connection board 42.
  • the MIPI bridge board 41 includes at least four groups of channels, each of which has a bandwidth of at least 1 Gbps (ie, a maximum data transmission speed of at least 1 Gbps per channel), supports smooth running of 3D images, and supports HD720 and FHD. The resolution and support for a large number of pictures and 1080P video playback.
  • the signals output by the RGB signal output interface include color signals of various modes such as black, white, red, green, blue, grayscale, and color.
  • the four data channels in the MIPI bridge board 41 share a set of clock lines, that is, only four lines are required for the four groups of channels.
  • the display module test and display system in this embodiment adopts a low-cost, high-configuration processor based on ARM (Cortext-A8), and combines a 4-channel MIPI bridge board to form a high-resolution display module.
  • the test and display system can realize the test of the small size MIPI interface and the HD720 and the higher resolution FHD liquid crystal display module, and is small in size, convenient to carry, and low in cost.
  • the MIPI bridge board 41 includes the following four parts: a signal input/output board 411, a bridge chip 412, a clock board 413, and a power board 414.
  • the bridge chip 412 is electrically connected to the signal input/output board 411, the clock board 413, and the power board 414, respectively, and the bridge chip 412 is used to convert the RGB signals into MIPI signals.
  • the signal input/output board 411 is provided with an RGB signal receiving port and an MIPI signal transmitting port, and the RGB signal receiving port is used for outputting with the RGB signal of the control unit 10.
  • the port is connected to receive the RGB signal, and the MIPI signal transmitting port is used for connecting with the connecting board 42 to transmit the MIPI signal; the signal input/output board 411 transmits the RGB signal to the RGB signal from the control unit 10 after receiving the RGB signal receiving port to the RGB signal.
  • the bridge chip 412 transmits the MIPI signal to the connection board 42 through the MIPI signal transmission port after receiving the MIPI signal converted by the bridge chip 412. Further, the bridge chip 412 is preferably an SSD 2828 chip, which serves as a control core of the interface unit 40 for converting a 24-bit low-speed RGB signal into a high-speed MIPI 4-channel signal.
  • the power board 414 supplies voltage to the bridge chip 412, and provides the required analog voltage VCC (2.8V), digital voltage IOVCC (1.8V), and zero voltage reference potential (ie, generic) for the display module 50 to be tested or demonstrated. Ground”).
  • the clock board 413 is used to synchronize the control unit 10 with the clock of the interface unit 40.
  • the connector board 42 is used to provide an MIPI signal to the display module 50 to be tested or displayed.
  • the connection board 42 can also provide backlighting for the display module 50 to be tested or displayed.
  • a connector 422 and a backlight module 421 may be disposed in the connection board 42.
  • the backlight module 421 includes a driving chip and a light source (such as an LED lamp) (not shown in FIG. 1), wherein the driving chip provides a constant current driving current for the light source to control the light source to emit light, and the light source provides uniformity for the display module 50 to be tested or displayed. Brightness backlighting.
  • the connector 422 receives the converted MIPI signal from the MIPI bridge board 41 (specifically, the MIPI signal transmission port of the signal input/output board 411), and transmits the MIPI signal to the display module 50 to be tested or displayed to drive it for display.
  • the connector 422 can be an AXE53124 chip.
  • the backlight module 421 connected to the connector 422 can select the RT9285B chip as the driving chip, and its constant current outputs 20mA current to drive the LED lamp (light source) that provides the backlight. When there are multiple backlight modules 421, multiple backlight modules collectively provide backlighting.
  • the manipulation unit 30 may include a human-machine information exchange interface such as a keyboard, and is used to generate a manipulation instruction to interrupt or resume the output of the display signal to the display module 50 during the test or display of the display module 50 (ie, Interrupt or restore the output of interface unit 40).
  • a human-machine information exchange interface such as a keyboard
  • control unit 10 can also be provided with a USB interface 13 (for example, a Mini USB interface implementing a USB 2.0 communication protocol), and a USB interface. 13 is used to connect an external control device, which may include a device such as a mouse that can be used to perform other control operations on the system.
  • the control unit 10 can also be provided with an RS232 serial port 12 implementing the RS232 serial port protocol for writing compiled programs (such as a kernel of a Linux system compiled with a PC or a kernel of an Android system, and a test program for different test contents).
  • RS232 serial port can also be connected to monitoring software, for example: Hyper-terminal with monitoring function, which monitors the operation of Cortext-A8 in real time, and finds abnormalities during system operation in time to take corresponding processing measures to avoid display mode The group test and display system itself caused by poor test or display failure.
  • the terminal unit 11 may also be provided in the control unit 10 for connecting to a terminal device such as a computer, thereby performing further control operations (such as system upgrade, fault repair) and the like on the system.
  • the storage unit 20 is preferably a large-capacity SD card for storing large-capacity color pictures to meet the testing and display requirements of display modules having various resolution MIPI interfaces, thereby satisfying the planning and market promotion of display modules.
  • the storage unit 20 may be electrically connected to the control unit 10 through an interface, or may be integrated with the control unit 10.
  • the specific process of testing or displaying the display module by using the display module test and display system may include the following steps:
  • the display module test and display system is connected to the display module 50, and the display module 50 is tested or displayed.
  • the display module 50 is connected to the connection board 42 of the display module test and display system.
  • the power of the entire display module test and display system is started, and 5V DC power is supplied thereto.
  • the Linux system in the ARM processor as the control unit 10 will load the boot loader file and automatically start the Linux system.
  • the MIPI bridge board 41 is also initialized into a normal operating state to convert the RGB signals into MIPI signals.
  • the initialization code is downloaded to the register in the driver chip (DRIVER IC) of the display module 50 connected to the connection board 42 through the MIPI bridge board 41 to provide the MIPI signal; at the same time, the connection board 42 is also a display module.
  • DRIVER IC driver chip
  • the backlight is provided, that is, the MIPI bridge board 41 and the connection board 42 provide the MIPI signal and the backlight for the display module 50.
  • the MIPI signal is a display signal for driving the display module 50 to display, and the backlight is used to illuminate the display module 50.
  • control unit 10 issues a manipulation command to the control unit 10, so that the control unit 10 controls the interface unit 40 to interrupt the output of the display signal according to the manipulation command while the control unit 10 is in the running state.
  • a manipulation command is issued to the control unit 10 through the manipulation unit 30 such as a keyboard, thereby interrupting the MIPI signal (display signal) output of the interface unit 40.
  • the method for interrupting the output of the MIPI signal is various.
  • the control unit 10 can no longer send RGB signals to the interface unit 40 while the Linux system is running, so the MIPI signal converted by the RGB signal naturally stops outputting.
  • the control unit 10 may control the bridge chip 412 in the interface unit 40 to stop running when the Linux system is kept running, that is, no longer convert the RGB signals, thereby interrupting the MIPI signal output.
  • the connection board 42 can still provide backlighting for the display template 50 because the presence of the backlight does not affect the replacement of the display module 50.
  • Step S3 the display module 50 is detached from the display module test and display system, and the other display module 50 is connected to the display module test and display system.
  • the tested or displayed display module 50 is separated from the connection panel 42 of the display module test and display system, and a new display module 50 to be tested or displayed is replaced and made
  • the display module test is connected to a connector board 42 that displays the system.
  • step S4 a manipulation command is issued to the control unit 10 through the manipulation unit 30, so that the control unit 10 controls the interface unit 40 to resume the output of the display signal according to the manipulation command.
  • a manipulation command is again issued to the control unit 10 by the manipulation unit 30 such as a keyboard, at which time the Linux system of the control unit 10 is still in positive
  • the manipulation unit 30 such as a keyboard
  • the control bridge chip 412 restarts the conversion of the RGB signal, thereby restoring the output of the MIPI signal for driving the display module, and continuing to test or display the new display module 50.
  • the replacement operation of the display module 50 is completed.

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Abstract

提供一种显示模组测试与展示系统及其使用方法。系统在更换显示模组)50)时不必重启,包括:存储单元)20),用于存储测试与展示用的数据信息;与存储单元)20)电连接的控制单元)10),用于将存储单元)20)存储的数据信息中的图像信息转换为图像控制信号;与控制单元)10)电连接的接口单元)40),用于连接待测试或展示的显示模组)50),接口单元)40)还用于将控制单元)10)提供的图像控制信号转换为显示信号,并为显示模组)50)提供显示信号以驱动显示模组)50)显示;与控制单元)10)电连接的操控单元)30),用于接收用户的操控指令并将操控指令传送给控制单元)10);且控制单元)10)还用于接收操控信号,并在保持运行的状态下根据操控信号控制接口单元)40)中断或恢复显示信号的输出。

Description

一种显示模组测试与展示系统及其使用方法 技术领域
本发明涉及显示技术领域,具体涉及一种显示模组测试与展示系统及其使用方法。
背景技术
在显示面板的生产过程中,一般在显示模组(包括阵列基板、彩膜基板、液晶层等)制备完成后、尚未连接相应的驱动电路以形成显示面板之前需要对显示模组进行性能测试;另外,为了推广等目的,显示模组也经常出现在各种展示会场,在这些情况下,需为显示模组提供一种能够提供大量的图片以供测试或展示时使用的系统,同时要求该系统便于操作、携带方便。
现有的显示模组测试系统可为显示模组提供显示信号,从而驱动显示模组进行显示。但是,当要更换被测试的显示模组时,必须先关闭显示模组测试系统,之后才可将显示模组从显示模组测试系统上拆下并装上新的显示模组,最后再重新开启显示模组测试系统以对新的显示模组进行测试,这是因为当显示模组测试系统持续输出显示信号时,装卸显示模组会对设备造成损伤。但是,以上更换显示模组的操作程序具有繁琐、耗时长的问题。
发明内容
本发明所要解决的技术问题是针对现有的显示模组测试系统在更换显示模组时需要重启的问题,提供一种显示模组测试与展示系统及其使用方法,能够实现在更换显示模组时不需要重启测试系统,且操作简单,耗时少的效果。
解决本发明技术问题所采用的技术方案包括一种显示模组测试与展示系统,其包括:
存储单元,其用于存储测试与展示时使用的数据信息;
控制单元,其用于从所述存储单元获取存储的数据信息,并基于数据信息中的图像信息生成图像控制信号;
接口单元,其用于连接待测试或展示的显示模组和所述控制单元,接口单元还用于将所述控制单元提供的图像控制信号转换为显示信号,从而向所述待测试或展示的显示模组提供显示信号以驱动所述待测试或展示的显示模组进行显示;以及
操控单元,其用于接收来自用户的操控指令并将与该操控指令对应的操控信号传送给所述控制单元;
其中,
所述控制单元从所述操控单元接收所述操控信号,并在保持运行的状态下根据所接收的操控信号控制所述接口单元中断或恢复显示信号的输出。
优选的是,所述接口单元包括:与控制单元电连接的MIPI桥接板,其用于接收控制单元提供的图像控制信号并将所述图像控制信号转换为作为所述显示信号的MIPI信号;以及与MIPI桥接板电连接的连接板,其用于连接所述待测试或展示的显示模组,所述连接板还用于将MIPI桥接板提供的MIPI信号提供给所述待测试或展示的显示模组。
优选的是,所述MIPI桥接板包括:桥接芯片,其用于将图像控制信号转换为MIPI信号;信号输入/输出板,其与桥接芯片和控制单元电连接,用于将控制单元提供的图像控制信号传递给所述桥接芯片,并将所述桥接芯片提供的MIPI信号输出到连接板。
优选的是,所述MIPI桥接板还包括:与所述桥接芯片电连接的时钟板,其用于使所述控制单元与接口单元的时钟同步;与所述桥接芯片电连接的电源板,其用于为所述桥接芯片以及所述待测试或展示的显示模组供电。
优选的是,所述连接板包括:与所述MIPI桥接板电连接的连接器,其用于将所述MIPI桥接板提供的MIPI信号传递给所述待 测试或展示的显示模组。
优选的是,所述连接板还用于为所述待测试或展示的显示模组提供显示所需的背光。
优选的是,所述连接板包括背光模块,其用于为所述待测试或展示的显示模组提供显示所需的背光;背光模块包括驱动芯片和与所述驱动芯片电连接的至少一个光源,所述驱动芯片用于控制所述光源发光。
优选的是,所述MIPI桥接板包括至少4组通道,每组通道的带宽至少为1Gbps。
优选的是,所述存储单元通过接口与所述控制单元电连接;或所述存储单元与所述控制单元集成为一体。
优选的是,所述控制单元为主频1GHz以上的处理器。
解决本发明技术问题所采用的技术方案是一种上述显示模组测试与展示系统的使用方法,其包括步骤:
S1、将所述显示模组测试与展示系统与显示模组连接,并对显示模组进行测试或展示;
S2、通过操控单元向控制单元发出操控指令,使得所述控制单元在保持运行的状态下,根据所述操控指令控制所述接口单元中断显示信号的输出;
S3、将所述显示模组从显示模组测试与展示系统上卸下,将另一显示模组连接到所述显示模组测试与展示系统上;以及
S4、通过操控单元向控制单元发出操控指令,使得所述控制单元根据所述操控指令控制所述接口单元恢复显示信号的输出。
根据本发明的显示模组测试与展示系统中,可通过操控单元向控制单元发出操控指令,从而使接口单元中断显示信号的输出(控制单元仍保持运行),这样,即可在不重启显示模组测试与展示系统的情况下直接更换显示模组,简化了操作,节省了时间。
附图说明
图1为根据本发明实施例的显示模组测试与展示系统的结构框图。
具体实施方式
为使本领域技术人员更好地理解本发明的技术方案,下面结合附图和具体实施方式对本发明提供的显示模组测试与展示系统作进一步详细描述。
一种显示模组测试与展示系统,包括:
存储单元,其用于存储测试与展示时使用的数据信息;
与所述存储单元电连接的控制单元,其用于基于所述存储单元存储的数据信息中的图像信息生成图像控制信号;
与所述控制单元电连接的接口单元,其用于连接待测试或展示的显示模组,接口单元还用于将所述控制单元提供的图像控制信号转换为显示信号,并向所述待测试或展示的显示模组提供显示信号以驱动所述待测试或展示的显示模组进行显示;
与所述控制单元电连接的操控单元,其用于接收来自用户的操控指令并将与该操控指令对应的操控信号传送给所述控制单元;
其中,
所述控制单元还用于从所述操控单元接收所述操控信号,并在保持运行的状态下根据所接收的操控信号控制所述接口单元中断或恢复显示信号的输出。
具体的,如图1所示,根据本发明实施例的显示模组测试与展示系统包括控制单元10、存储单元20、操控单元30以及接口单元40。控制单元10与存储单元20、操控单元30以及接口单元40分别电连接。存储单元20用于存储测试与展示时使用的数据信息(包括测试程序以及图像信息等);操控单元30用于提供人机接口,以使用户可通过操控单元30向控制单元10发送操控信号; 控制单元10用于基于存储单元20存储的数据信息中的图像信息生成图像控制信号(本实施例中以图像控制信号为RGB信号为例进行说明,当然其也可为RGBW等其他形式的信号),并将RGB信号(即,图像控制信号)发送给接口单元40;同时,控制单元10接收到来自操控单元30的操控信号时,可在保持运行的状态下根据所接收的操控信号控制接口单元40中断或恢复信号的输出。接口单元40用于连接待测试或展示的显示模组50,并将从控制单元10接收的上述RGB信号(即,图像控制信号)转换为与待测试或展示的显示模组50相适配的显示信号(如MIPI信号,本实施例中以此为例进行说明),之后利用MIPI(Mobi le Industry Processor Interface,移动产业处理器接口)信号驱动待测试或展示的显示模组50进行显示。其中,待测试或展示的显示模组50可以为用于测试、展示及推广的高分辨率显示模组,例如分辨率为HD720(720×1280)以及FHD(1200×1920)的小尺寸显示模组,尤其适用于手机等的液晶显示模组。
本实施例的显示模组测试与展示系统中,可通过操控单元30向控制单元10发出操控信号,从而使接口单元40中断或恢复MIPI信号(即,显示信号)的输出(但控制单元10仍保持运行),这样,即可在不重启显示模组测试与展示系统的情况下直接更换显示模组50,简化了操作,节省了时间。
在本实施例中,为了获得更快的处理速度和流畅的图像测试或展示效果,控制单元10优选包括主频1GHz以上的处理器,例如精简指令集微处理器,更优选可包括ARM A8处理器(为ARM A8平台芯片,例如主频为1GHz的Cortext-A8核心板),内嵌Linux系统或Android系统(优选Linux系统)。由于ARM处理器具有自己的开发与调试体系,因此与现有技术中的显示模组测试系统相比,采用ARM架构的处理器的显示模组测试与展示系统的功能更强大、开发更简单,成本也更低。
优选的,接口单元40还能够为待测试或展示的显示模组提供显示所需的背光。
具体地,如图1所示,接口单元40可以包括彼此电连接的MIPI桥接板41和连接板42。控制单元10中可以设置有图像控制信号输出接口(图1中未示出,本实施例中以RGB信号输出接口为例进行说明)。MIPI桥接板41与RGB信号输出接口电连接,用于将RGB信号输出接口输出的RGB信号(即,图像控制信号)转换为MIPI信号(即,显示信号)并输出给连接板42;连接板42用于与待测试或展示的显示模组50连接,并将MIPI信号输出给待测试或展示的显示模组50。也即,控制单元10中的RGB信号输出接口为通过MIPI桥接板41和连接板42与外部用于测试、展示及推广的高分辨率显示模组50连接的RGB标准接口。
优选的,MIPI桥接板41包括至少4组通道,每一通道的带宽至少可达1Gbps(即每路通道的数据传输速度的最高值至少为1Gbps),支持3D图像流畅运行,可以支持HD720和FHD的分辨率,并且支持大量图片和1080P视频播放。在本实施例中,RGB信号输出接口输出的信号包括黑、白、红、绿、蓝、灰阶、彩色等多种模式的颜色信号。MIPI桥接板41中的4个数据通道共用一组时钟线,也就是说,4组通道也只需要10根线即可。以HD1080P的分辨率来说,所需要的带宽为:1920×1080×60帧×24bi t=3Gbps,MIPI桥接板41的4组通道即可满足需求。本实施例中的显示模组测试与展示系统,采用基于ARM(Cortext-A8)开发的低成本、高配置的处理器,并结合4通道MIPI桥接板,组成了一种高分辨率显示模组测试与展示系统,其可实现对具有小尺寸MIPI接口和HD720及更高分辨率FHD液晶显示模组的测试,且体积小、携带方便、成本低廉。
具体的,如图1所示,MIPI桥接板41包括以下四部分:信号输入/输出板411、桥接芯片412、时钟板413以及电源板414。桥接芯片412分别与信号输入/输出板411、时钟板413以及电源板414电连接,桥接芯片412用于将RGB信号转换为MIPI信号。信号输入/输出板411中设置有RGB信号接收端口和MIPI信号发送端口,RGB信号接收端口用于与控制单元10的RGB信号输出接 口连接以接收RGB信号,MIPI信号发送端口用于与连接板42连接以传送MIPI信号;信号输入/输出板411在通过RGB信号接收端口接收到来自控制单元10的RGB信号后将RGB信号传递给桥接芯片412,在接收到由桥接芯片412转换得到的MIPI信号后通过MIPI信号发送端口将MIPI信号发送至连接板42。进一步地,桥接芯片412优选为SSD2828芯片,其作为接口单元40的控制核心,用于将24位的低速的RGB信号转换为高速的MIPI 4通道信号。电源板414为桥接芯片412提供电压,以及为待测试或展示的显示模组50提供符合要求的模拟电压VCC(2.8V)、数字电压IOVCC(1.8V)和零电压参考电位(即通称的“地”)。时钟板413用于使控制单元10与接口单元40的时钟同步。
连接板42用于为待测试或展示的显示模组50提供MIPI信号。优选的,连接板42还可以为待测试或展示的显示模组50提供背光。具体的,连接板42中可以设置有连接器422和背光模块421。背光模块421包括驱动芯片和光源(如LED灯)(图1中未示出),其中驱动芯片为光源提供恒流驱动电流以控制光源发光,光源为待测试或展示的显示模组50提供均匀亮度的背光。连接器422从MIPI桥接板41(具体是信号输入/输出板411的MIPI信号发送端口)接收转换得到的MIPI信号,并将MIPI信号传递至待测试或展示的显示模组50以驱动其进行显示。优选的,连接器422可以选用AXE53124芯片。另外,与连接器422连接的背光模块421可以选用RT9285B芯片作为驱动芯片,其恒流输出20mA电流以驱动提供背光的LED灯(光源)。当有多个背光模块421时,多个背光模块共同提供背光。
操控单元30可包括键盘等人机信息互换接口,并且用于产生操控指令,以在显示模组50进行测试或展示的过程中中断或恢复对显示模组50的显示信号的输出(即,中断或恢复接口单元40的输出)。
另外,从图1中可见,控制单元10中还可设置有USB接口13(例如实现USB 2.0的通讯协议的Mini USB接口),USB接口 13用于连接外部控制设备,外部控制设备可包括鼠标等可用于对系统进行其他控制操作的设备。控制单元10中还可设置有实现RS232串口协议的RS232串口12,用于将编译好的程序(例如采用PC编译好的Linux系统的内核或者Android系统的内核,以及不同测试内容的测试程序)写入到存储单元20中(当然,也可以写入控制单元10自带的存储芯片中),以便于根据产品测试或展示的需要来更换测试或展示程序,增强了该显示模组测试与展示系统的通用性;RS232串口还可连接监控软件,例如:具有监控功能的超级终端,其实时监控Cortext-A8的运行情况,及时发现系统运行过程中的异常以便采取对应的处理措施,避免因显示模组测试与展示系统本身的不良引起的测试不良或展示故障。控制单元10中还可设置有终端接口11,用于与计算机等终端设备相连,从而对系统进行更进一步的控制操作(例如系统升级、故障修复)等。
存储单元20优选为大容量SD卡,用来存储大容量的彩色图片,满足具有各种分辨率MIPI接口的显示模组的测试和展示需求,进而满足企划和市场对于显示模组的推广。此外,存储单元20可以通过接口与所述控制单元10电连接,也可以与所述控制单元10集成为一体。
采用该显示模组测试与展示系统对显示模组进行测试或展示的具体过程可以包括以下步骤:
S1、将所述显示模组测试与展示系统与显示模组50连接,并对显示模组50进行测试或展示。
具体地,在该步骤中,将显示模组50与所述显示模组测试与展示系统的连接板42进行连接。之后,启动整个显示模组测试与展示系统的电源,向其提供5V的直流电源,作为控制单元10的ARM处理器中的Linux系统会调入引导装载程序(boot loader)文件,自动启动Linux系统;与此同时,MIPI桥接板41也经初始化进入正常运行状态,将RGB信号转换为MIPI信号。在Linux系 统启动之后,会将初始化代码通过MIPI桥接板41下载到与连接板42连接的显示模组50的驱动芯片(DRIVER IC)内的寄存器,提供MIPI信号;同时,连接板42还为显示模组50提供背光,即MIPI桥接板41和连接板42为显示模组50同时提供MIPI信号和背光,MIPI信号为驱动显示模组50进行显示的显示信号,背光用于点亮显示模组50。
S2、通过操控单元30向控制单元10发出操控指令,使得控制单元10在保持运行的状态下,根据该操控指令控制接口单元40中断显示信号的输出。
在该步骤中,通过诸如键盘之类的操控单元30向控制单元10发出操控指令,从而中断接口单元40的MIPI信号(显示信号)输出。其中,中断MIPI信号输出的方法是多样的,例如可以是控制单元10在保持Linux系统运行的情况下不再向接口单元40发出RGB信号,故由RGB信号转换得到的MIPI信号自然也就停止输出;或者,也可以是控制单元10在保持Linux系统运行的情况下,控制接口单元40中的桥接芯片412,使其停止运行,即不再对RGB信号进行转换,从而中断MIPI信号输出。当然,在MIPI信号输出中断时,连接板42仍可持续地为显示模板50提供背光,因为背光的存在不会对显示模组50的更换产生影响。
步骤S3、将显示模组50从显示模组测试与展示系统上卸下,将另一显示模组50连接到显示模组测试与展示系统上。
在该步骤中,将已测试或展示完毕的显示模组50与该显示模组测试与展示系统的连接板42分离,更换下一块新的待测试或展示的显示模组50,并使之与显示模组测试与展示该系统的连接板42连接。
步骤S4、通过操控单元30向控制单元10发出操控指令,使得控制单元10根据该操控指令控制接口单元40恢复显示信号的输出。
在该步骤中,通过诸如键盘之类的操控单元30再次向控制单元10发出操控指令,此时控制单元10的Linux系统仍然处于正 常运行状态,故可直接恢复RGB信号的输出,或控制桥接芯片412重新开始对RGB信号进行转换,从而恢复用于驱动显示模组的MIPI信号的输出,继续测试或展示新的显示模组50,完成显示模组50的更换操作。
可以理解的是,以上实施方式仅仅是为了说明本发明的原理而采用的示例性实施方式,然而本发明并不局限于此。对于本领域内的普通技术人员而言,在不脱离本发明的精神和实质的情况下,可以做出各种变型和改进,这些变型和改进也视为本发明的保护范围。

Claims (11)

  1. 一种显示模组测试与展示系统,包括:
    存储单元,其用于存储测试与展示时使用的数据信息;
    控制单元,其用于从所述存储单元获取存储的数据信息,并基于数据信息中的图像信息生成图像控制信号;
    接口单元,其用于连接待测试或展示的显示模组和所述控制单元,并用于将所述控制单元提供的图像控制信号转换为显示信号,从而向所述待测试或展示的显示模组提供显示信号以驱动所述待测试或展示的显示模组进行显示;以及
    操控单元,其用于接收来自用户的操控指令并将与该操控指令对应的操控信号传送给所述控制单元;
    其中,
    所述控制单元从所述操控单元接收所述操控信号,并在保持运行的状态下根据所接收的操控信号控制所述接口单元中断或恢复显示信号的输出。
  2. 根据权利要求1所述的显示模组测试与展示系统,其中,所述接口单元包括:
    与所述控制单元电连接的MIPI桥接板,其用于接收所述控制单元提供的图像控制信号并将所述图像控制信号转换为作为所述显示信号的MIPI信号;以及
    与MIPI桥接板电连接的连接板,其连接所述待测试或展示的显示模组,所述连接板用于将所述MIPI桥接板提供的MIPI信号提供给所述待测试或展示的显示模组。
  3. 根据权利要求2所述的显示模组测试与展示系统,其中,所述MIPI桥接板包括:
    桥接芯片,其用于将所述图像控制信号转换为MIPI信号;以及
    信号输入/输出板,其与所述桥接芯片和所述控制单元电连接,用于将所述控制单元提供的图像控制信号传递给所述桥接芯片,并将所述桥接芯片提供的MIPI信号输出到所述连接板。
  4. 根据权利要求3所述的显示模组测试与展示系统,其中,所述MIPI桥接板还包括:
    与所述桥接芯片电连接的时钟板,其用于使所述控制单元与所述接口单元的时钟同步;
    与所述桥接芯片电连接的电源板,其用于为所述桥接芯片以及所述待测试或展示的显示模组供电。
  5. 根据权利要求2所述的显示模组测试与展示系统,其中,所述连接板包括:
    与所述MIPI桥接板电连接的连接器,其用于将所述MIPI桥接板提供的MIPI信号传递给所述待测试或展示的显示模组。
  6. 根据权利要求2所述的显示模组测试与展示系统,其中,
    所述连接板还用于为所述待测试或展示的显示模组提供显示所需的背光。
  7. 根据权利要求6所述的显示模组测试与展示系统,其中,所述连接板包括:
    背光模块,其用于为所述待测试或展示的显示模组提供显示所需的背光;所述背光模块包括驱动芯片和与所述驱动芯片电连接的至少一个光源,所述驱动芯片用于控制所述光源发光。
  8. 根据权利要求2至5中任意一项所述的显示模组测试与展示系统,所述MIPI桥接板包括至少4组通道,每组通道的带宽至少为1Gbps。
  9. 根据权利要求1至7中任意一项所述的显示模组测试与展示系统,其中,
    所述存储单元通过接口与所述控制单元电连接;
    所述存储单元与所述控制单元集成为一体。
  10. 根据权利要求1至7中任意一项所述的显示模组测试与展示系统,其中,
    所述控制单元为主频1GHz以上的处理器。
  11. 一种根据权利要求1至10中任意一项所述的显示模组测试与展示系统的使用方法,包括步骤:
    S1、将所述显示模组测试与展示系统与显示模组连接,并对显示模组进行测试或展示;
    S2、通过操控单元向控制单元发出操控指令,使得所述控制单元在保持运行的状态下,根据所述操控指令控制所述接口单元中断显示信号的输出;
    S3、将所述显示模组从所述显示模组测试与展示系统上卸下,将另一显示模组连接到所述显示模组测试与展示系统上;以及
    S4、通过操控单元向控制单元发出操控指令,使得所述控制单元根据所述操控指令控制所述接口单元恢复显示信号的输出。
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