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Display interface test device

A technology of interface testing and display, which is applied to measuring devices, instruments, measuring electronics, etc., can solve problems such as wasting time, misjudgment, and failure to know the status, so as to facilitate testers, avoid misjudgment, and improve service life.

Inactive Publication Date: 2008-07-02
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such repeated plugging and unplugging actions not only waste time, but also shorten the service life of the test device
Moreover, if there is an abnormality in the system of the device under test during the test, since there is no display to display it, it is impossible to know its status, which may cause misjudgment

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0010] Please refer to figure 1 and figure 2 , the display interface testing device 100 of the present invention is used for testing the display interface of an electronic device (such as a computer), and it comprises a circuit board 110, a first connector 120 and a second connector 130, and the first connector 120 and the second connector 130 are both disposed on the circuit board 110 and are respectively used to connect to a display interface of the electronic device and a display (not shown). In this implementation manner, the display interface of the electronic device is described by taking a VGA interface as an example.

[0011] The circuit board 110 includes a transfer switch module 112, five matching resistors R1-R5 and five groups of detection pins S1-S5, the transfer switch module 112 includes five single-pole double-throw switches K1-K5, each single-pole The double-throw switch includes a blade, a first contact a and a second contact b, and each group of detection...

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PUM

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Abstract

The invention relates to a testing device for a display interface, which is used for testing the display interface of an electronic device. The testing device comprises a first connector used for connecting the display interface, a plurality of detecting pins, a second connector used for connecting a display, and a transfer switch module. The transfer switch module which is arranged between the second connector and the detecting pins controls the electric connection between a testing splicing pin in the first connector and a corresponding splicing pin in the second connector or the detecting pins; the other splicing pins in the first connector is electrically connected with the corresponding splicing pins in the second connector. The testing device for the display interface can conveniently test the display interface and adjust the display parameter through the display on real-time basis.

Description

technical field [0001] The invention relates to a testing device, in particular to a testing device for testing a display interface. Background technique [0002] At present, the VGA (video graphics array, video image array) interface is one of the most commonly used interfaces for displays. For example, the display interfaces of most computers are VGA interfaces. In order to ensure the quality of the VGA interface output signal, it needs to be checked. Necessary tests. There are usually 15 pins on the VGA interface, and only five pins of the red primary color (R), green primary color (G), blue primary color (B), line synchronization (Hsync) and field synchronization (Vsync) need to be checked during the test. Just do the test. Existing testing device comprises a VGA interface connector, is used to connect the VGA interface of equipment under test, and described testing device draws the above-mentioned five pins that need to be tested by described VGA interface connector, ...

Claims

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Application Information

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IPC IPC(8): G06F11/267G01R31/00
Inventor 许李侯作林谢尚洋
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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