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Power supply method, power supply device and testing jig in testing display screen

A technology of test fixture and power supply method, applied in the direction of measuring device, measuring electricity, measuring electrical variables, etc., can solve the problems of display screen damage, improper connection between test fixture and display screen, etc., and achieve the effect of saving test costs

Active Publication Date: 2016-06-08
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiment of the present invention is to provide a power supply method, device and test fixture when testing the display screen, so as to solve the problem of the display screen being damaged by electricity due to improper connection between the test fixture and the display screen when testing the display screen. question

Method used

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  • Power supply method, power supply device and testing jig in testing display screen
  • Power supply method, power supply device and testing jig in testing display screen
  • Power supply method, power supply device and testing jig in testing display screen

Examples

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Embodiment 1

[0021] figure 1 It is a schematic flowchart of a power supply method when testing a display screen provided by Embodiment 1 of the present invention. The method can be executed by a power supply device when testing a display screen. The device can be implemented by software and / or hardware, and can generally be integrated in a In the test fixture for display test. Such as figure 1 As shown, the method includes:

[0022] Step 101 , after the connecting wire plug of the test fixture is inserted into the connector interface of the display screen, when it is detected that the power supply event for the display screen is triggered, control the test fixture to output the minimum working voltage of the display screen.

[0023] Wherein, the connecting wire plug includes a power pin and a signal pin, and the connector interface includes a power interface and a signal interface.

[0024] Exemplarily, the display screen may include a touch display screen of a mobile terminal such as a...

Embodiment 2

[0033] figure 2 It is a schematic flowchart of a power supply method for testing a display screen provided by Embodiment 2 of the present invention. This embodiment is optimized on the basis of the above embodiment. In this embodiment, "judging whether the display can be read The preset information in the screen is optimized as follows: send a read request to read the preset information in the control chip through the signal pin; match the feedback result of the read request with the standard information stored in the test fixture. If the matching is successful, it is judged that the preset information in the display screen can be read; if the matching is unsuccessful, it is judged that the preset information in the display screen cannot be read.

[0034] Correspondingly, the method of this embodiment includes the following steps:

[0035] Step 201 , after the connecting wire plug of the test fixture is inserted into the connector interface of the display screen, when it is ...

Embodiment 3

[0044] image 3 It is a schematic flowchart of a preferred power supply method for testing display screens provided by Embodiment 3 of the present invention. This embodiment is optimized based on the above embodiments. In this embodiment, "determine whether to control the test according to the judgment result The fixture outputs the remaining operating voltage of the display screen" is optimized as follows: if the judgment result is that the preset information in the display screen can be read, then control the test fixture to output the remaining operating voltage of the display screen; if the judgment result is unreadable Get the preset information in the display screen, then control the test fixture to issue a warning.

[0045] Specifically, the method of this embodiment includes the following steps:

[0046] Step 301 , after the connecting wire plug of the test fixture is inserted into the connector interface of the display screen, when it is detected that the event of su...

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Abstract

An embodiment of the invention discloses a power supply method, a power supply device and a testing jig in testing a display screen. The power supply comprises the steps of after a connecting line plug of the testing plug is inserted into a connector interface of the display screen, when a display screen powering event is triggered, making the testing jig output a lowest working voltage of the display screen; determining whether preset information in the display screen can be read; and determining whether to make the testing jig output residual working voltage of the display screen according to the determining result. According to the power supply method, the power supply device and the testing jig, in testing the display screen, display screen damage caused by electric shock because of improper connection between the testing jig and the display screen can be effectively prevented, and display screen testing cost is reduced.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of display screen testing, and in particular, to a power supply method, device and test fixture for testing a display screen. Background technique [0002] At present, most electronic products are equipped with display screens, especially mobile terminals such as mobile phones and tablet computers are usually equipped with touch display screens. [0003] The display screen is a relatively expensive component. During the production process of the display screen, the functions of the display screen must be fully inspected. During the full inspection, it is necessary to add all the working voltages required for the normal operation of the display to the display. The specific test steps are: insert the plug of the test fixture cable into the connector interface of the display, press the switch, the test fixture will apply all the working voltage to the display, the display will light u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 靳勇
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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