Method for measuring flicker value of LCD display screen and related device

Abstract

The embodiment of the present application discloses a method for measuring the flicker value of an LCD display screen and a related device, which are used to realize free setting of the working distance to measure the Flicker value. The method in the embodiment of the present application includes: setting the working parameters and the calibration environment of the shooting camera and the spherical integrating standard light source; controlling the spherical integrating standard light source to output a set of preset brightness values; using the shooting camera and the color analyzer to take pictures of the spherical integrating standard light source , to generate a set of calibrated captured images and reference luminance value data; calculate the average gray value of the set of calibrated captured images to generate calibrated average gray value data; generate a photometric model based on the calibrated average gray value data and reference luminance value data; The display screen shoots to generate a target shooting image set; calculates the target brightness value data according to the target shooting image set and the light metering model; calculates the target LCD display flicker value according to the target brightness value data.

Description

technical field [0001] The embodiments of the present application relate to the field of LCD display screens, in particular to a method for measuring flicker values ​​of LCD display screens and related devices. Background technique [0002] Flicker is a frequency domain effect, that is, light flicker, which can occur on all illuminants. When the light on the illuminant enters the flicker state, it will cause different degrees of damage to people and the illuminant. [0003] When the illuminant device flickers, it may cause discomfort to human eyes, and in some cases of flicker, the life of the illuminant device will be reduced. Moreover, Flicker flickering may also cause human diseases, such as: neurological problems, including seizures, headaches, fatigue, blurred vision, eye fatigue, distraction, etc. Flicker detection is usually used in the display and lighting industries, especially thin film transistor liquid crystal display (TFT-LCD). When the thin film transistor liq...

AI Technical Summary

Problems solved by technology

However, the color analyzer is not only expensive, but also the product model of the color analyzer is greatly constrained in the detection process of the Flicker value of the thin film transistor liquid crystal display. The light-emitting surface of the liquid crystal display is measured, and the requirement of free setting of the working distance to measure the Flicker value cannot be realized

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