CN202058409U

CN202058409U - Automatic video signal and picture signal switching LCM test device

Info

Publication number: CN202058409U
Application number: CN2011200637990U
Authority: CN
Inventors: 彭骞; 陈凯; 周凯
Original assignee: KUNSHAN JINGXUN ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: Wuhan Jingce Electronic Technology Co Ltd
Priority date: 2011-03-14
Filing date: 2011-03-14
Publication date: 2011-11-30
Anticipated expiration: 2021-03-14

Abstract

An automatic video signal and picture signal switching LCM (Liquid Crystal Module) test device relates to the field of LCM tests, comprises a power supply module, a CPU module, a video signal module, a picture signal module, an automatic signal detection module and a signal switching module, and is characterized in that the CPU module is connected with the picture signal module, the power supply module is connected with the video signal module, both the video signal module and the picture signal module are connected with the automatic signal detection module, the automatic signal detection module is connected with the signal switching module, and the signal switching module is connected with the video signal module and the picture signal module respectively, as well as a test signal LVDS (Low Voltage Differential Signaling) coding module. The LCM test device support the inputs of both video signals and picture signals simultaneously, the video signals and the picture signals are input through two different signal sources and can be switched simply and quickly, and the test device is simple to operate and has a higher test efficiency.

Description

The liquid crystal module proving installation that a kind of vision signal and picture signal automatically switch

Technical field

The utility model relates to the field tests of liquid crystal module, specifically is the liquid crystal module proving installation that a kind of vision signal and picture signal automatically switch.

Background technology

FPD (Flat Panel Display, flat-panel monitor) mainly comprises LCD (Liquid Crystal Display, very color LCD) and PDP (Plasma Display Panel, plasma display), have frivolous, plurality of advantages such as power consumption is low, radiation is little, screen flicker free, rich color, along with its technology reaches its maturity, the main product function admirable, PFD has occupied increasing market share.

The primary clustering of PFD is a liquid crystal module, need carry out strict test verification when liquid crystal module is produced, and the testing instruments of employing are the liquid crystal module proving installation.Along with the mechanization degree of dull and stereotyped producer's product production line is more and more higher, requirement to the liquid crystal module performance test apparatus is also more and more higher, as require can be flexibly switchable liquid crystal module testing source apace, have higher supply voltage Current Regulation precision and scope, support to discern automatically when the liquid crystal module of different size is tested various parameters such as the colorfulness of image, brightness, GTG, resolution, require product up-gradation to wait easily and fast.

In process, usually need with its dynamic menu performance of test video signal, as the response time etc. to the liquid crystal module performance test; Test its static properties with picture signal, as bad point etc.Yet traditional liquid crystal module testing apparatus function singleness, or only support the picture signal input, do not support the vision signal input; Support vision signal and picture signal to import from same signal source, but because this device complicated operation, and then cause switch speed slow, the efficient that greatly reduces test and produce, and be unfavorable for liquid crystal module is carried out automatic test.

The utility model content

At the defective that exists in the prior art, the purpose of this utility model is to provide the liquid crystal module proving installation of a kind of vision signal and picture signal automatic switchover, support the input of vision signal and picture signal simultaneously, and vision signal is imported by two different signal sources with picture signal, switch simple between two kinds of signals and speed fast, proving installation is simple to operate, has promoted testing efficiency, thereby makes the production efficiency of enterprise promote to some extent.

For reaching above purpose, the technical scheme that the utility model is taked is: the liquid crystal module proving installation that a kind of vision signal and picture signal automatically switch, comprise power module, the CPU module, the vision signal module, the picture signal module, automatic detection module of signal and signal exchange module, described CPU module links to each other with the picture signal module, described power module links to each other with the vision signal module, described vision signal module, the picture signal module all is connected to the automatic detection module of signal, the automatic detection module of signal connects the signal exchange module, and the signal exchange module also respectively with the vision signal module, the picture signal module links to each other, and described signal exchange module also connects a test signal LVDS coding module.

On the basis of technique scheme, described picture signal module comprises picture signal input interface module, picture signal cache module, picture signal decoder module, the picture signal module adaptation module that links to each other successively.

On the basis of technique scheme, described picture signal input interface module all links to each other with the CPU module with picture signal module adaptation module, the picture signal input interface module connects the automatic detection module of signal, and picture signal module adaptation module connects the signal exchange module.

On the basis of technique scheme, described vision signal module comprises video signal input interface module, vision signal cache module, vision signal decoder module, the vision signal module adaptation module that connects successively.

On the basis of technique scheme, described video signal input interface module directly links to each other with power supply with vision signal module adaptation module, the video signal input interface module connects the automatic detection module of signal, and vision signal module adaptation module connects the signal exchange module.

The beneficial effects of the utility model are: handle picture signal and vision signal respectively by picture signal module and vision signal module, need not same signal source export, and by automatic detection module of signal and the common switching that realizes between two kinds of signals of signal exchange module, switching is simple and speed is fast, proving installation is simple to operate, promote testing efficiency, thereby made the production efficiency of enterprise promote to some extent.

Description of drawings

Fig. 1 is the structured flowchart of the liquid crystal module proving installation embodiment of the utility model vision signal and picture signal automatic switchover.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

As shown in Figure 1, the liquid crystal module proving installation that described vision signal and picture signal automatically switch comprises power module, the CPU module, the vision signal module, the picture signal module, automatic detection module of signal and signal exchange module, power module is the whole testing device power supply, it directly connects the vision signal module, the CPU module links to each other with the picture signal module, the picture signal module, the vision signal module all connects the automatic detection module of signal, the automatic detection module of signal also links to each other with the signal exchange module, and the signal exchange module also connects test signal LVDS (Low Voltage Differential Signal) coding module.Described picture signal module comprises picture signal input interface module, picture signal cache module, picture signal decoder module, the picture signal module adaptation module that links to each other successively.Described picture signal input interface module all links to each other with the CPU module with picture signal module adaptation module, and the picture signal input interface module connects the automatic detection module of signal, and picture signal module adaptation module connects the signal exchange module.Described vision signal module comprises video signal input interface module, vision signal cache module, vision signal decoder module, the vision signal module adaptation module that connects successively.Described video signal input interface module directly links to each other with power supply with vision signal module adaptation module, and the video signal input interface module connects the automatic detection module of signal, and vision signal module adaptation module connects the signal exchange module.Described picture signal is entered by the picture signal input interface module, exports the signal exchange module to by picture signal module adaptation module; Described vision signal is entered by the video signal input interface module, export the signal exchange module to by vision signal module adaptation module, two kinds of signals of signal exchange module controls, export LCD module under test to by test signal LVDS coding module simultaneously, on LCD module under test, form picture or video pictures.

The utility model not only is confined to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but on its shape or structure, do any variation; every have identical with a utility model or akin technical scheme, all within its protection domain.

Claims

1. the liquid crystal module proving installation that automaticallyes switch of vision signal and picture signal, comprise power module, the CPU module, the vision signal module, the picture signal module, automatic detection module of signal and signal exchange module, it is characterized in that: described CPU module links to each other with the picture signal module, described power module links to each other with the vision signal module, described vision signal module, the picture signal module all is connected to the automatic detection module of signal, the automatic detection module of signal connects the signal exchange module, and the signal exchange module also respectively with the vision signal module, the picture signal module links to each other, and described signal exchange module also connects a test signal LVDS coding module.

2. the liquid crystal module proving installation that a kind of vision signal as claimed in claim 1 and picture signal automatically switch is characterized in that: described picture signal module comprises picture signal input interface module, picture signal cache module, picture signal decoder module, the picture signal module adaptation module that links to each other successively.

3. the liquid crystal module proving installation that a kind of vision signal as claimed in claim 2 and picture signal automatically switch, it is characterized in that: described picture signal input interface module all links to each other with the CPU module with picture signal module adaptation module, the picture signal input interface module connects the automatic detection module of signal, and picture signal module adaptation module connects the signal exchange module.

4. the liquid crystal module proving installation that a kind of vision signal as claimed in claim 1 and picture signal automatically switch is characterized in that: described vision signal module comprises video signal input interface module, vision signal cache module, vision signal decoder module, the vision signal module adaptation module that connects successively.

5. the liquid crystal module proving installation that a kind of vision signal as claimed in claim 4 and picture signal automatically switch, it is characterized in that: described video signal input interface module directly links to each other with power supply with vision signal module adaptation module, the video signal input interface module connects the automatic detection module of signal, and vision signal module adaptation module connects the signal exchange module.