CN203150076U - Liquid crystal module testing device capable of DP (data processing) decoding and automatically adjusting resolution - Google Patents
Liquid crystal module testing device capable of DP (data processing) decoding and automatically adjusting resolution Download PDFInfo
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- CN203150076U CN203150076U CN 201220729235 CN201220729235U CN203150076U CN 203150076 U CN203150076 U CN 203150076U CN 201220729235 CN201220729235 CN 201220729235 CN 201220729235 U CN201220729235 U CN 201220729235U CN 203150076 U CN203150076 U CN 203150076U
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Abstract
The utility model discloses a liquid crystal module testing device capable of DP (data processing) decoding and automatically adjusting the resolution, and relates to the field of liquid crystal module testing. The liquid crystal module testing device comprises a control unit, a video output encoding unit, a DP decoding unit and an image processing unit, wherein the DP decoding unit is connected with the video output encoding unit through the image processing unit, and the image processing unit and the video output encoding unit are both connected with the control unit. The liquid crystal module testing device is low in power consumption during testing the liquid crystal modules, can adjust the resolution automatically according to the liquid crystal modules, and adapts to different types of the liquid crystal modules automatically. The liquid crystal module testing device disclosed by the utility model is not only low in test cost and high in test efficiency, but also low in power consumption, stable and reliable.
Description
Technical field
The utility model relates to the field tests of liquid crystal module, is specifically related to a kind of DP decoding and the self-adjusting liquid crystal module proving installation of resolution.
Background technology
LCD (Liquid Crystal Display, LCD) has frivolous, advantages such as power consumption is low, radiation is little, screen flicker free, rich color; Along with the progress in epoch, LCD has become the main flow display device on the electronic market.Liquid crystal module is the key component of LCD, and liquid crystal module need be carried out strict test and check by proving installation when producing.
The interconnected signal of tradition liquid crystal module inside adopts LVDS(Low-Voltage Differential Signaling usually, the Low Voltage Differential Signal transmission) interface.In order to satisfy display device to the pursuit of high resolving power and high refresh rate, the liquid crystal module of ultrahigh resolution and superelevation refresh rate has appearred on the market.DP(Data Processing, the data processing) interface and V-By-One interface (HSSI High-Speed Serial Interface) not only can be supported resolution and the refresh rate of superelevation, and can directly drive panel, have better Electro Magnetic Compatibility and interference free performance, therefore, support the liquid crystal module of DP interface and V-By-One interface to become the trend of inevitable development.
But, when testing liquid crystal module, leaves by existing proving installation following defective:
When (1) existing proving installation is tested liquid crystal module, generally adopt special chip and the output interface of function singleness, its dynamic configurability is poor.In test communications interface type difference and have multiresolution and during the test liquid crystal module of many refresh rates, proving installation need be equipped with corresponding output interface and chip according to interface type, resolution and the refresh rate of different liquid crystal module.The process of proving installation outfit output interface and chip is more complicated not only, has increased testing cost, wasted resource, and testing efficiency is lower, and then has reduced the production efficiency of liquid crystal module, has prolonged changing the line of production the time of liquid crystal module.
Adopt fixedly single-link pattern when (2) proving installation is worked; For the liquid crystal module of ultrahigh resolution, because the signal bandwidth of the liquid crystal module of ultrahigh resolution sharply increases, therefore adopt when fixedly the proving installation of single-link pattern is tested the liquid crystal module of ultrahigh resolution, the processing speed frequency of proving installation can significantly increase, proving installation not only energy consumption is higher, and interference is bigger, the less stable of proving installation, and the reliability of the liquid crystal module behind the device to test is lower after tested.
The utility model content
At the defective that exists in the prior art, the purpose of this utility model is to provide a kind of DP decoding and the self-adjusting liquid crystal module proving installation of resolution, its energy consumption when the test liquid crystal module is lower, can adjust resolution automatically according to liquid crystal module, automatically adapt to dissimilar liquid crystal module, not only testing cost is lower, and testing efficiency is higher, and energy consumption is lower, and is more stable, reliable.
For reaching above purpose, the technical scheme that the utility model is taked is: a kind of DP decoding and the self-adjusting liquid crystal module proving installation of resolution, comprise control module and video output encoder unit, also comprise DP decoding unit and graphics processing unit, described DP decoding unit is connected with video output encoder unit by graphics processing unit, and described graphics processing unit all is connected with control module with video output encoder unit.
On the basis of technique scheme, described control module comprises interconnective human-computer interaction module and module Card read/write module, and described graphics processing unit all is connected with module Card read/write module with video output encoder unit.
On the basis of technique scheme, described DP decoding unit comprises interconnective DP video decode module and accessory channel decoder module, and described DP video decode module all is connected with graphics processing unit with the accessory channel decoder module.
On the basis of technique scheme, described graphics processing unit comprises the resolution adaptation module, and described DP video decode module, accessory channel decoder module, module Card read/write module and video output encoder unit all are connected with the resolution adaptation module.
On the basis of technique scheme, described graphics processing unit also comprises frame per second conversion buffer module, and described resolution adaptation module is connected with video output encoder unit by frame per second conversion buffer module.
On the basis of technique scheme, described video output encoder unit comprises LVDS coding module, DP coding module and V-By-One coding module, described resolution adaptation module is connected with LVDS coding module, DP coding module and V-By-One coding module respectively by frame per second conversion buffer module, and described LVDS coding module, DP coding module and V-By-One coding module all are connected with module Card read/write module.
On the basis of technique scheme, also comprise the liquid crystal module test interface, described LVDS coding module, DP coding module and V-By-One coding module all are connected with the liquid crystal module test interface.
The beneficial effects of the utility model are:
(1) the utility model can be adjusted the resolution of mating with LCD module under test automatically according to the video parameter information of LCD module under test.Therefore, the utility model not only can adapt to dissimilar liquid crystal module automatically, and has reduced the adjustment time between the liquid crystal module of test different types, has improved testing efficiency.
(2) DP decoding unit of the present utility model support is integrated in the field programmable logic array (FPLA), avoided the restriction of special chip, the DP decoding unit can carry out multilink and multidata parallel processing, has not only reduced the processing clock frequency, and disturb lessly, energy consumption is lower.Therefore, the test liquid crystal module that the utility model can be stable.
(3) LVDS coding module of the present utility model, DP coding module and V-By-One coding module can provide LVDS test signal, DP test signal and V-By-One test signal, therefore, the utility model can carry out adaptive with the liquid crystal module of supporting LVDS interface, DP interface and V-By-One interface, when the utility model is supported the liquid crystal module of LVDS interface, DP interface and V-By-One interface in test, can cascade and switching, reduce the demand in input video source, reduced the maintenance cost in testing cost and later stage.
(4) resolution adaptation module of the present utility model can realize convergent-divergent, stretching and the cutting of video, and the test of compatible ultrahigh resolution liquid crystal module has in the future reduced device upgrade, has saved testing cost and resource.
(5) the utility model can have been realized the function that existing design needs a plurality of complex proprietary chips to finish by using field programmable logic array (FPLA) in single chips, improves integrated level greatly.Therefore, reliable through the liquid crystal module of the utility model test, the product percent of pass of liquid crystal module is higher; Test process was fairly simple when the utility model was tested liquid crystal module, and not only testing cost is lower, has saved resource, and testing efficiency is higher, had improved the production efficiency of liquid crystal module, had shortened changing the line of production the time of liquid crystal module.
Description of drawings
Fig. 1 is the connection block diagram of proving installation among the utility model embodiment;
Fig. 2 is the method for testing process flow diagram of proving installation among the utility model embodiment.
Among the figure: 1-DP decoding unit, 1a-DP video decode module, 1b-helps the channel-decoded module, the 2-graphics processing unit, 2a-resolution adaptation module, 2b-frame per second conversion buffer module, the 3-control module, the 3a-human-computer interaction module, 3b-module Card read/write module, 4-video output encoder unit, the 4a-LVDS coding module, the 4b-DP coding module, 4c-V-By-One coding module, 5-liquid crystal module test interface.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
Referring to shown in Figure 1, the self-adjusting liquid crystal module proving installation of the DP signal decoding among the utility model embodiment and resolution comprises DP decoding unit 1, graphics processing unit 2, control module 3, video output encoder unit 4 and liquid crystal module test interface 5.DP decoding unit 1 is connected with video output encoder unit 4 by graphics processing unit 2, and video output encoder unit 4 is connected with liquid crystal module test interface 5, and graphics processing unit 2 all is connected with control module 3 with video output encoder unit 4.
Control module 3 is used for: the video parameter information of record and transmission LCD module under test; Control DP decoding unit 1, graphics processing unit 2 and 4 work of video output encoder unit.
Video output encoder unit 4 is used for: the video data after graphics processing unit 2 is adaptive is carried out the video coding handle, obtain the video test signals adaptive with the communication interface of LCD module under test.
DP video decode module 1a all is connected with resolution adaptation module 2a with accessory channel decoder module 1b, and resolution adaptation module 2a is connected with video output encoder unit 4 by frame per second conversion buffer module 2b.Resolution adaptation module 2a, frame per second conversion buffer module 2b all are connected with module Card read/write module 3b with video output encoder unit 4.
Accessory channel decoder module 1b is used for: resolve the DP auxiliary channel signal, obtain detailed video parameter information and the video data of user defined command; Accessory channel decoder module 1b is sent to resolution adaptation module 2a with the resolution parameter in the video parameter information, accessory channel decoder module 1b is sent to DP video decode module 1a with video parameter information, and the parameter of video decode needs is provided for DP video decode module 1a.
DP video decode module 1a is used for: according to the video parameter information that accessory channel decoder module 1b sends, the vision signal from the high-speed video passage is carried out video decode, obtain video data.
Resolution adaptation module 2a is used for: carry out the resolution of the decoded video data of DP video decode module 1a and the resolution of LCD module under test adaptive.The resolution parameter that resolution adaptation module 2a sends accessory channel decoder module 1b is as the source resolution parameter, the resolution parameter that module Card read/write module 3b is sent is as the target resolution parameter, resolution adaptation module 2a is according to source resolution parameter and target resolution parameter, calculate the resolution conversion parameter adaptive with LCD module under test, according to the resolution conversion parameter, the resolution of the video data that DP video decode module 1a is sent is made conversion, makes that the resolution of the resolution of the video data that DP video decode module 1a sends and LCD module under test is adaptive.
Frame per second conversion buffer module 2b, be used for: the video data write after resolution adaptation module 2a is adaptive is gone into frame per second conversion buffer zone, frame per second parameter according to LCD module under test, control is to the calculating of reading and exporting data of frame per second conversion buffer zone, after video data carried out delete frame or insert frame, 4 sent video datas to video output encoder unit.
Human-computer interaction module 3a is used for: video parameter information and the communication interface type of record LCD module under test, video parameter information comprises resolution parameter, frame per second parameter and video time sequence parameter.
Module Card read/write module 3b, be used for: the resolution parameter that LCD module under test is provided for resolution adaptation module 2a, the frame per second parameter of LCD module under test is provided for frame per second conversion buffer module 2b, for video output encoder unit provides the video time sequence parameter of LCD module under test (as clock speed, the blanking zone, limited area etc.).
Video output encoder unit 4 comprises three types of different communication code modules: the transmission of LVDS(Low-Voltage Differential Signaling Low Voltage Differential Signal) coding module 4a, DP(Data Processing, data are handled) coding module 4b and V-By-One coding module 4c, module Card read/write module 3b and liquid crystal module test interface 5 respectively with LVDS coding module 4a, DP coding module 4b is connected with V-By-One coding module 4c, resolution adaptation module 2a by frame per second conversion buffer module 2b respectively with LVDS coding module 4a, DP coding module 4b is connected with V-By-One coding module 4c.
LVDS coding module 4a is used for: according to communication interface and the video time sequence parameter of LCD module under test, the video data that sends for frame per second conversion buffer module 2b provides LVDS coding, sends the LVDS test signal;
V-By-One coding module 4c is used for: according to communication interface and the video time sequence parameter of LCD module under test, the video data that sends for frame per second conversion buffer module 2b provides V-By-One coding, sends the V-By-One test signal.
LVDS test signal, DP test signal and V-By-One test signal all can be sent to LCD module under test by liquid crystal module test interface 5, and LCD module under test is tested.
LVDS coding module 4a, DP coding module 4b and V-By-One coding module 4c be practical, use communication code module more widely.In actual applications, the type of the communication interface coding module in the video output encoder unit 4 is selected according to the different demand of user, but in order to guarantee the testing efficiency of proving installation, the type of communication interface coding module is at least three kinds.
Referring to shown in Figure 2, the method for testing of proving installation among the utility model embodiment may further comprise the steps:
S101: control module 3 powers on, and proving installation is carried out initialization.
S102: in video parameter information and the communication interface type of human-computer interaction module 3a record LCD module under test, video parameter information comprises resolution parameter, frame per second parameter, video time sequence parameter.Module Card read/write module 3b reads the video parameter information of human-computer interaction module 3a record.
Module Card read/write module 3b is sent to resolution adaptation module 2a with the resolution parameter in the video parameter information, module Card read/write module 3b is sent to frame per second conversion buffer module 2b with the frame per second parameter in the video parameter information, and module Card read/write module 3b is sent to video output encoder unit 4 with the video time sequence parameter in the video parameter information and communication interface type.
The parameter information of human-computer interaction module 3a record can also obtain by the self-defining data decoding that accessory channel sends.
S103: whether accessory channel decoder module 1b detection DP video decode module 1a is connected normal with the outside, if then forward step S105 to, otherwise re-execute step S104.
S104: accessory channel decoder module 1b resolves the DP auxiliary channel signal, obtains detailed video parameter information and user defined command data, and video parameter information comprises resolution parameter; Accessory channel decoder module 1b is sent to DP video decode module 1a with video parameter information, and accessory channel decoder module 1b is sent to resolution adaptation module 2a with the resolution parameter in the video parameter.
S105:DP video decode module 1a resolves the DP vision signal from the high-speed video passage according to the video parameter information that accessory channel decoder module 1b sends, and obtains video data.
S106: the resolution of the video data after resolution adaptation module 2a resolves DP video decode module 1a and the resolution of liquid crystal module to be tested are adaptive.
The resolution parameter that the resolution parameter that resolution adaptation module 2a sends with accessory channel decoder module 1b sends as the source resolution parameter, with module Card read/write module 3b is as the target resolution parameter; Resolution adaptation module 2a judges the resolution converting method that needs employing according to source resolution parameter and target resolution parameter, calculate the resolution conversion parameter adaptive with LCD module under test, according to the resolution conversion parameter, the resolution of the video data that DP video decode module 1a is sent is made conversion, makes that the resolution of the resolution of the video data that DP video decode module 1a sends and liquid crystal module to be tested is adaptive.
S107: the frame per second conversion buffer zone of the video data write of resolution adaptation module 2a transmission being gone into frame per second conversion buffer module 2b, the frame per second parameter of the LCD module under test that sends according to module Card read/write module 3b, control frame per second conversion buffer zone reads data and output data, and the video data that resolution adaptation module 2a is sent carries out delete frame or inserts frame.
S108: video output encoder unit 4 is according to interface type and the video time sequence parameter of the LCD module under test of module Card read/write module 3b transmission, and the video data that frame per second conversion buffer module 2b is sent carries out the processing of video coding.
Select corresponding with it communication code module (LVDS coding module 4a, DP coding module 4b or V-By-One coding module 4c) according to the video coding, obtain the video test signals adaptive with LCD module under test.
S109: video test signals is sent to LCD module under test by liquid crystal module test interface 5, LCD module under test is tested.
The utility model is not limited to above-mentioned embodiment; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also make some improvements and modifications, these improvements and modifications also are considered as within the protection domain of the present utility model.The content that is not described in detail in this instructions belongs to this area professional and technical personnel's known prior art.
Claims (7)
1. a DP decodes and the self-adjusting liquid crystal module proving installation of resolution, comprise control module (3) and video output encoder unit (4), it is characterized in that: also comprise DP decoding unit (1) and graphics processing unit (2), described DP decoding unit (1) is connected with video output encoder unit (4) by graphics processing unit (2), and described graphics processing unit (2) all is connected with control module (3) with video output encoder unit (4).
2. DP as claimed in claim 1 decodes and the self-adjusting liquid crystal module proving installation of resolution, it is characterized in that: described control module (3) comprises interconnective human-computer interaction module (3a) and module Card read/write module (3b), and described graphics processing unit (2) all is connected with module Card read/write module (3b) with video output encoder unit (4).
3. DP as claimed in claim 2 decodes and the self-adjusting liquid crystal module proving installation of resolution, it is characterized in that: described DP decoding unit (1) comprises interconnective DP video decode module (1a) and accessory channel decoder module (1b), and described DP video decode module (1a) all is connected with graphics processing unit (2) with accessory channel decoder module (1b).
4. DP as claimed in claim 3 decodes and the self-adjusting liquid crystal module proving installation of resolution, it is characterized in that: described graphics processing unit (2) comprises resolution adaptation module (2a), and described DP video decode module (1a), accessory channel decoder module (1b), module Card read/write module (3b) and video output encoder unit (4) all are connected with resolution adaptation module (2a).
5. DP as claimed in claim 4 decodes and the self-adjusting liquid crystal module proving installation of resolution, it is characterized in that: described graphics processing unit (2) also comprises frame per second conversion buffer module (2b), and described resolution adaptation module (2a) is connected with video output encoder unit (4) by frame per second conversion buffer module (2b).
6. DP as claimed in claim 5 decodes and the self-adjusting liquid crystal module proving installation of resolution, it is characterized in that: described video output encoder unit (4) comprises LVDS coding module (4a), DP coding module (4b) and V-By-One coding module (4c), described resolution adaptation module (2a) by frame per second conversion buffer module (2b) respectively with LVDS coding module (4a), DP coding module (4b) is connected with V-By-One coding module (4c), described LVDS coding module (4a), DP coding module (4b) all is connected with module Card read/write module (3b) with V-By-One coding module (4c).
7. DP as claimed in claim 6 decodes and the self-adjusting liquid crystal module proving installation of resolution, it is characterized in that: also comprise liquid crystal module test interface (5), described LVDS coding module (4a), DP coding module (4b) and V-By-One coding module (4c) all are connected with liquid crystal module test interface (5).
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| CN 201220729235 CN203150076U (en) | 2012-12-26 | 2012-12-26 | Liquid crystal module testing device capable of DP (data processing) decoding and automatically adjusting resolution |
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| CN 201220729235 CN203150076U (en) | 2012-12-26 | 2012-12-26 | Liquid crystal module testing device capable of DP (data processing) decoding and automatically adjusting resolution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105679217A (en) * | 2016-01-08 | 2016-06-15 | 武汉精测电子技术股份有限公司 | AUX signal testing system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105679217A (en) * | 2016-01-08 | 2016-06-15 | 武汉精测电子技术股份有限公司 | AUX signal testing system and method |
| CN105679217B (en) * | 2016-01-08 | 2018-05-04 | 武汉精测电子集团股份有限公司 | A kind of AUX signal test systems and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 430070 Hubei City, Hongshan Province, South Lake Road, No. 53, Hongshan Venture Center, building on the 4 floor, No. Patentee after: WUHAN JINGCE ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 1, 11 floor, No. 430070, bookstore Road 48, Hongshan District, Hubei, Wuhan Patentee before: WUHAN JINGCE ELECTRONIC TECHNOLOGY Co.,Ltd. |
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| CB03 | Change of inventor or designer information |
Inventor after: Zheng Zengqiang Inventor after: Deng Biaohua Inventor after: Shen Yafei Inventor after: Chen Kai Inventor before: Zheng Zengqiang Inventor before: Deng Biaohua Inventor before: Shen Yafei Inventor before: Chen Kai |
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| COR | Change of bibliographic data | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430070 Hubei City, Hongshan Province, South Lake Road, No. 53, Hongshan Venture Center, building on the 4 floor, No. Patentee after: WUHAN JINGCE ELECTRONIC GROUP Co.,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. |
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Granted publication date: 20130821 |