Positioning method and positioning device in optical test

Abstract

The invention discloses a positioning method and a positioning device in optical test. The method comprises the following steps: using a viewfinder of a test instrument to acquire an image, wherein all or part of a preset graph of an indicating direction displayed by tested equipment is displayed on the image, the preset graph of the indicating direction indicates where the preset graph of the indicating direction is displayed on the screen of the tested equipment relative to a preset screen positioning point of the screen of the tested equipment, and the screen of the tested equipment and the viewfinder of the test instrument in optical test are oppositely arranged; determining the position of the center point of the viewfinder of the test instrument relative to the preset screen positioning point of the screen of the tested equipment according to the graph displayed on the image, and further determining the adjustment position and the adjustment direction; and adjusting the position of the test instrument according to the adjustment distance and the adjustment direction, and / or adjusting the position of the tested equipment according to the adjustment distance and the adjustment direction. By adopting the technical scheme provided by the embodiments of the invention, the positioning accuracy and efficiency are improved.

Description

technical field [0001] The invention relates to the technical field of optical testing of screens, in particular to a positioning method and device in optical testing. Background technique [0002] In order to ensure the image performance of products, manufacturers of multimedia terminal equipment and display modules must conduct complex optical tests on their products. [0003] Common optical tests include as many as hundreds of test items such as central brightness, color gamut, multi-point uniformity, and viewing angle. Before each test starts, a positioning operation is required, that is, to adjust the relative position between the screen of the device under test and the test instrument. [0004] At present, the equipment under test is fixed on a fixture, and the positioning can only be achieved by repeated observation and adjustment by testers. Specifically, the tester estimates the relative position between the test instrument and the device under test through observ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a positioning method and device in optical testing to solve the existing problems of low positioning efficiency and uncontrollable accuracy

Images