A display device measuring device and method for simulating human eye structure

Abstract

The invention discloses a display device measuring device simulating the structure of human eyes and a measuring method. By means of an optical system and a software processing system, retinal imaging simulation and optical safe measurement are achieved. The optical system comprises one or two optical imaging devices, a light radiation measuring device and a dynamic measuring device. The software processing system comprises a human eye smooth tracking model, a subjective matching test model, a Photopic deviation model and other human eye visual models. A part of the optical system can finally generate images in human eye retinas by means of the optical imaging device of a simulation human eye structure and the software system simulating the human eye visual models. A light radiation measuring part of the optical system analyzes spectrum distribution needing light measurement through a photoelectric sensor array, and retinal damage can be accurately evaluated according to a retinal damage weight function curve. The measuring method simulating the structure of the human eyes is disclosed and can omnidirectionally evaluate color, brightness, motion blur and other characteristics of a display device in real time.

Description

technical field [0001] The invention relates to a display device measurement device and a measurement method that simulates the human eye structure, and belongs to the field of display device measurement. Background technique [0002] With the rapid development of display technology, measurement methods for display devices have attracted more and more attention. Display evaluation mainly includes brightness, chromaticity, static contrast ratio and dynamic contrast ratio measurement, motion blur and so on. At present, there are many types of luminance meters on the market, including simple luminance meters, spectral radiance meters, optical imaging luminance meters, high-accuracy luminance meters and CCD imaging luminance meters. However, these traditional luminance meters only measure the brightness of the measured object, which is an objective physical quantity, not the brightness that the human eye can actually perceive. And the traditional brightness has the following d...

AI Technical Summary

Problems solved by technology

These traditional luminance meters only measure the brightness of the measured object, which is an objective physical quantity, not the brightness that the human eye can actually perceive.

And the traditional brightness has the following disadvantages: 1. The incident aperture is much larger than the 7mm pupil diameter of the human eye, and the field of view (FOV) is 0.1°, 0.2°, 1° or 2°, which cannot meet the requirements of radiation standards; 2. Usually used V(λ) for matching, cannot be weighted according to the weighting function required by the standard; 3. The position of the entrance pupil is uncertain, usually the rear end of the lens, which cannot really meet the requirements of the 200mm test distance

Human eye simulation has been studied at home and abroad, but few institutions use human eye simulation technology combined with CCD arrays to conduct comprehensive and real-time evaluations of color, brightness, motion blur and other characteristics of display devices.

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