CN204375388U - Integral type liquid crystal module testing device - Google Patents
Integral type liquid crystal module testing device Download PDFInfo
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- CN204375388U CN204375388U CN201420859278.XU CN201420859278U CN204375388U CN 204375388 U CN204375388 U CN 204375388U CN 201420859278 U CN201420859278 U CN 201420859278U CN 204375388 U CN204375388 U CN 204375388U
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Abstract
The utility model discloses a kind of integral type liquid crystal module testing device, comprise ARM nucleus module, signal processing module, power module, signal output and control module, signal exports and control module comprises MCU submodule, FPGA signal transacting submodule, signal transacting conversion chip and signal output sub-module, ARM nucleus module exports with signal processing module, power module and signal respectively and control module is connected, signal processing module exports with signal and control module is connected, and power module is connected with LCD module under test respectively with signal output sub-module.The operating system of host computer and test application operation platform are integrated in liquid crystal module testing apparatus by the utility model, depart from host computer and directly carry out liquid crystal module configuration and test operation, without the need to sharing or downloading; In addition, proving installation energy is compatible multiple common test signal simultaneously, reduces the use of switching wire rod.
Description
Technical field
The utility model relates to liquid crystal module field tests, is specifically related to a kind of host computer that departs from and carries out parameter configuration, test operation and the integral type liquid crystal module testing device of compatible multiple test signal.
Background technology
LCM (LCD Module, liquid crystal module) is the main flow of flat panel display terminal in one period at present and in the future, produces on line, need to utilize the display quality of liquid crystal module testing device to LCM to detect to ensure the outgoing of module at LCM.
According to different application demands, LCM need adopt different physical signalling interfaces, as LVDS, DP, MIPI etc.At present, as shown in Figure 1, liquid crystal module testing device generally all forms a test macro by host computer, LVDS signal source and signaling interface expansion board physical interfaces such as () DP, MIPI, could the testing requirement of the interface type LCM such as compatible LVDS, DP, MIPI.Although, there is following problem in the testing requirement of the compatible different interface type LCM of this testing scheme energy:
1) configuration parameter revising LCM to be measured all needs the host computer of special configuration to get involved, and needs shared by network interface or download to LVDS signal source, and testing process is comparatively complicated;
2) need various wire rod to connect between each equipment, operating process is more loaded down with trivial details, and test macro can not arbitrarily movement after putting up;
3) test macro built connects owing to need adopt various wire rod, and the loose contact of interface easily causes the erroneous judgement of test result;
4) test macro built takes up room larger.
Summary of the invention
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of integral type liquid crystal module testing device, the operating system of host computer and test application operation platform are integrated in liquid crystal module testing apparatus, depart from host computer and directly carry out liquid crystal module configuration and test operation, without the need to sharing or downloading; In addition, proving installation energy is compatible multiple common test signal simultaneously, reduces the use of switching wire rod.
For achieving the above object, integral type liquid crystal module testing device designed by the utility model, its special character is, comprise ARM nucleus module, signal processing module, power module, signal exports and control module, described signal exports and control module comprises MCU submodule, FPGA signal transacting submodule, signal transacting conversion chip and signal output sub-module, described ARM nucleus module respectively with signal processing module, power module and signal export and control module connects, described signal processing module exports with signal and control module is connected, described power module is connected with LCD module under test respectively with signal output sub-module.
Further, described signal transacting conversion chip comprises MIPI signal subspace module and DP signal subspace module, described signal output sub-module comprises LVDS signal output interface, MIPI signal output interface and DP signal output interface, described FPGA signal transacting submodule respectively with LVDS signal output interface, MIPI signal subspace module and DP signal subspace model calling, described MIPI signal subspace module is connected with MIPI signal output interface, described DP signal subspace module is connected with DP signal output interface, described LVDS signal output interface, MIPI signal output interface is connected with LCD module under test with DP signal output interface.If LCD module under test is LVDS type, then picture signal is directly sent to LVDS signal output interface and transfers to LCD module under test by FPGA, if LCD module under test is MIPI type or DP type, then FPGA is correspondingly sent to MIPI signal subspace module or DP signal subspace module after picture signal is converted to TTL image, TTL picture signal is converted to MIPI picture signal and is sent to MIPI signal output interface by MIPI signal subspace module, TTL picture signal is converted to DP picture signal and to DP signal output interface by DP signal subspace module, MIPI picture signal is transferred to LCD module under test display by MIPI signal output interface, DP picture signal is transferred to LCD module under test display by DP signal output interface.
Further, also comprise communication module, described communication module comprise for the RS232 interface of peripheral device communication, RS485 interface, USB interface and network interface.Described display module also comprises the HDMI for external-connection displayer.
Further, also comprise display module and load module, described display module is for carrying display screen, and described load module is touch-screen.By touch-screen input liquid crystal module configuration information and power configuration information during test.Described display module also comprises the HDMI for external-connection displayer.
Further, described load module also comprises the USB interface for external access of mouse and keyboard.
The utility model is compared with the usefulness of prior art:
1) host computer function and ARM function i ntegration are directly that an application program operates in the system in proving installation by the utility model, test profile is without the need to sharing or downloading, configuration and test operation that host computer directly carries out test parameter on proving installation can be departed from, testing process is simple, effectively can promote testing efficiency; 2) the utility model energy compatible LVDS, DP, MIPI tri-kinds of test signals simultaneously, can realize the function of LVDS, DP, MIPI tri-kinds of Special testing devices, can reduce the testing cost that liquid crystal module produces line greatly; 3) due to the utility model energy compatible LVDS, DP, MIPI tri-kinds of test signals simultaneously, decrease the use of switching wire rod, effectively can avoid the erroneous judgement causing test result due to the loose contact of wire rod switching; 4) the utility model device integrated level is high, takes up room less, and proving installation can conveniently carry and move.
Accompanying drawing explanation
Fig. 1 is the block scheme of available liquid crystal module group test system;
Fig. 2 is the circuit block diagram of the utility model integral type liquid crystal module testing device.
In figure: ARM nucleus module 1, signal processing module 2, power module 3, signal exports and control module 4, MCU submodule 41, FPGA signal transacting submodule 42, MIPI signal subspace module 43, DP signal subspace module 44, LVDS signal output interface 45, MIPI signal output interface 46, DP signal output interface 47, display module 5, load module 6, communication module 7, LCD module under test 8.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 2, a kind of integral type liquid crystal module testing device provided by the utility model, comprises ARM nucleus module 1, signal processing module 2, power module 3, signal output and control module 4, display module 5, load module 6 and communication module 7.
Wherein ARM nucleus module 1 is built based on ARM Cortex-A9 chip and android system, export with signal processing module 2, power module 3, signal respectively and control module 4, display module 5 and load module 6 and communication module 7 are connected, it is mainly as operating system and application program operation platform.
Signal processing module 2 receives the configuration information that ARM nucleus module 1 sends over and the pictorial information write according to ARM nucleus module 1 in internal memory, and regeneration LVDS picture signal exports and control module 4 to signal.
Power module 3 output multi-channel power supply is that each functional module of the utility model device and LCD module under test 8 are powered.
Signal exports and control module 4 comprises MCU submodule 41, FPGA signal transacting submodule 42, MIPI signal subspace module 43, DP signal subspace module 44, LVDS signal output interface 45, MIPI signal output interface 46 and DP signal output interface 47.MIPI signal subspace module 43 adopts TC358768 chip, and DP signal subspace module 44 adopts DP501 chip.ARM nucleus module 1 carries out switched communication with FPGA signal transacting submodule 42, MIPI signal subspace module 43 and DP signal subspace module 44 respectively by MCU submodule 41; FPGA signal transacting submodule 42 is connected with signal processing module 2, MIPI signal subspace module 43, DP signal subspace module 44 and LVDS signal output interface 45 respectively; MIPI signal subspace module 43 is connected with LCD module under test 8 by MIPI signal output interface 46, and DP signal subspace module 44 is connected with LCD module under test 8 by DP signal output interface 47.
If LCD module under test 8 is LVDS type, then LVDS picture signal is directly sent to LVDS signal output interface 45 and transfers to LCD module under test 8 and show by FPGA signal transacting submodule 42, if LCD module under test 8 is MIPI type or DP type, then FPGA signal transacting submodule 42 is correspondingly sent to MIPI signal subspace module 43 or DP signal subspace module 44 after LVDS picture signal is converted to TTL image, TTL picture signal is converted to MIPI picture signal and is sent to MIPI signal output interface 46 by MIPI signal subspace module 43, TTL picture signal is converted to DP picture signal and is sent to DP signal output interface 47 by DP signal subspace module 44, MIPI picture signal is transferred to LCD module under test 8 and shows by MIPI signal output interface 46, DP picture signal is transferred to LCD module under test 8 and shows by DP signal output interface 47.
Display module 5 also comprises a HDMI except display screen, and this HDMI is used for external-connection displayer;
Load module 6 also comprises two USB interface except touch-screen, and USB interface is used for external access of mouse and keyboard.
In addition the utility model device also comprises communication module 7, and communication module 7 comprises each 1 of RS232 interface, RS485 interface, USB interface and network interface, for carrying out interactive correspondence with other equipment.
The utility model device is utilized to be that 7 cun of MIPI liquid crystal module to carry out some the step of screen test to LCD module under test 8 as follows:
1) this MIPI liquid crystal module signal input interface be connected with the utility model device MIPI signal output interface 46 and power on, ARM nucleus module 1 operation system and enter main interface, showing various application icon;
2) on load module 6, click the module Test Application icon selected on display screen 5 with finger, ARM nucleus module 1 is according to the input of load module 6, and response events triggers module Test Application, enters module test application;
3) in module test application, module Edit button is clicked, enter editing interface, carry out editing (comprising module signal, power supply, picture display and function editor), edit rear preservation and exited editing interface, produced module configuration information and be kept in the storer of ARM nucleus module 1;
4) in module test application, click initialization button, to obtain and display processing module 2, power module 3, signal export and the software version number of control module 4;
5) in module test application, click test file select button, according to filename in the dialog box ejected, select the module configuration information of LCD module under test 8 respective type, the main interface of module test application after selection, can be automatically returned to;
6) in module test application, click beginning testing button, enter test interface, module configuration information comprises test file name, resolution, refreshing frequency, electric current and voltage monitoring etc.Test interface has beginning, terminates and function (such as cut figure function, color adaptation, GTG regulates, tracking cross, the functions such as power adjustment) button; Click start button, ARM nucleus module 1 can pass to power module 3 by serial ports power configuration information, and the power configuration signal received is sent to LCD module under test 8 and realizes power configuration and power supply by power module 3.
7) ARM nucleus module 1 is generated by upper application software or receives by communication module 7 pictorial information that form is BMP, JPG and logic picture, tell that the pictorial information in signal processing module 2 internal memory is ready by EBI interface, the pictorial information in internal memory is converted to the FPGA signal transacting submodule 42 that LVDS picture signal is sent to signal output and control module 4 by signal processing module 2.ARM nucleus module 1 is configured according to the liquid crystal module configuration information received MCU submodule 41, the MCU submodule 41 that module configuration information and control information pass to signal output and control module 4 by serial ports to FPGA signal transacting submodule 42 and MIPI signal subspace module 43.Signal exports and control module 4 controls relevant pins state and detects relevant pins state (low and high level).
8) the LVDS picture signal of reception is converted to TTL picture signal and is sent to MIPI signal subspace module 43 by FPGA signal transacting submodule 42, TTL picture signal is converted to MIPI picture signal and is sent to MIPI signal output interface 46, MIPI signal subspace module 43 and MIPI picture signal is sent to LCD module under test 8 shows by MIPI signal subspace module 43.
9) LCD module under test 8 is lighted, now the display image of observable LCD module under test 8 and voltage and current, observes and has zero defect.
10) test rear click conclusion button, complete test.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also design some improvement, these improvement also should be considered as protection domain of the present utility model.
The content that this instructions is not described in detail belongs to the known prior art of professional and technical personnel in the field.
Claims (8)
1. an integral type liquid crystal module testing device, it is characterized in that: comprise ARM nucleus module (1), signal processing module (2), power module (3), signal exports and control module (4), described signal exports and control module (4) comprises MCU submodule (41), FPGA signal transacting submodule (42), signal transacting conversion chip and signal output sub-module, described ARM nucleus module (1) respectively with signal processing module (2), power module (3) and signal export and control module (4) connects, described signal processing module (2) exports with signal and control module (4) is connected, described power module (3) and signal output sub-module are connected with LCD module under test (8) respectively.
2. integral type liquid crystal module testing device according to claim 1, it is characterized in that: described signal transacting conversion chip comprises MIPI signal subspace module (43) and DP signal subspace module (44), described signal output sub-module comprises LVDS signal output interface (45), MIPI signal output interface (46) and DP signal output interface (47), described FPGA signal transacting submodule (42) respectively with LVDS signal output interface (45), MIPI signal subspace module (43) is connected with DP signal subspace module (44), described MIPI signal subspace module (43) is connected with MIPI signal output interface (46), described DP signal subspace module (44) is connected with DP signal output interface (47), described LVDS signal output interface (45), MIPI signal output interface (46) is connected with LCD module under test (8) with DP signal output interface (47).
3. integral type liquid crystal module testing device according to claim 1 and 2, it is characterized in that: also comprise communication module (7), described communication module (7) comprise for the RS232 interface of peripheral device communication, RS485 interface, USB interface and network interface.
4. integral type liquid crystal module testing device according to claim 1, it is characterized in that: also comprise display module (5) and load module (6), described display module (5) is for carrying display screen, and described load module (6) is touch-screen.
5. integral type liquid crystal module testing device according to claim 1, is characterized in that: described ARM nucleus module (1) adopts ARM Cortex-A9 chip to build, and software platform is android system.
6. integral type liquid crystal module testing device according to claim 2, is characterized in that: described MIPI signal subspace module (43) adopts TC358768 chip, and described DP signal subspace module (44) adopts DP501 chip.
7. integral type liquid crystal module testing device according to claim 4, is characterized in that: described display module (5) also comprises the HDMI for external-connection displayer.
8. integral type liquid crystal module testing device according to claim 4, is characterized in that: described load module (6) also comprises the USB interface for external access of mouse and keyboard.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420859278.XU CN204375388U (en) | 2014-12-30 | 2014-12-30 | Integral type liquid crystal module testing device |
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| CN201420859278.XU CN204375388U (en) | 2014-12-30 | 2014-12-30 | Integral type liquid crystal module testing device |
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| CN204375388U true CN204375388U (en) | 2015-06-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110377510A (en) * | 2019-07-02 | 2019-10-25 | 武汉精立电子技术有限公司 | The control device and system of mould group detection device based on embedded system |
| WO2020019429A1 (en) * | 2018-07-24 | 2020-01-30 | 武汉华星光电技术有限公司 | Test apparatus and test method for display panel |
-
2014
- 2014-12-30 CN CN201420859278.XU patent/CN204375388U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020019429A1 (en) * | 2018-07-24 | 2020-01-30 | 武汉华星光电技术有限公司 | Test apparatus and test method for display panel |
| CN110377510A (en) * | 2019-07-02 | 2019-10-25 | 武汉精立电子技术有限公司 | The control device and system of mould group detection device based on embedded system |
| CN110377510B (en) * | 2019-07-02 | 2022-11-01 | 武汉精立电子技术有限公司 | Control device and system of module detection equipment based on embedded system |
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Address after: 430070 Hubei City, Hongshan Province, South Lake Road, No. 53, Hongshan Venture Center, building on the 4 floor, No. Patentee after: Wuhan fine test electronics group Limited by Share Ltd Address before: 430070 Hubei City, Hongshan Province, South Lake Road, No. 53, Hongshan Venture Center, building on the 4 floor, No. Patentee before: Wuhan Jingce Electronic Technology Co., Ltd. |