Measurement method of dynamic image quality of liquid crystal display

Abstract

The invention discloses a method for measuring the quality of a dynamic image of a liquid crystal display. The method comprises an upper machine control flow and a lower machine image generation and data acquisition operating flow, wherein the upper machine control flow is used for defining a display image format, selecting a clock updating scheme, setting graph driving configuration, determining a data acquisition mode and computing the quality parameters of the dynamic image; the lower machine image generation and data acquisition operating flow is used for receiving and converting operating data, generating and controlling a synchronizing signal, generating and configuring a test graph, selecting and setting display drive, and acquiring and transmitting characteristic data; and transmission of measuring data in an inter-integrated circuit (I2C) bus mode and transmission of transient response characteristic data through a universal serial bus (USB) interface are performed between the upper machine control flow and the lower machine image generation and data acquisition operating flow. The method provided by the invention is used for comprehensively identifying the dynamic characteristic of the liquid crystal display and can meet measuring requirements of different types of liquid crystal displays.

Description

technical field [0001] The invention relates to a method for measuring the display quality of a liquid crystal display, in particular to a method for measuring the dynamic image quality of a liquid crystal display. Background technique [0002] Based on the holding mode of liquid crystal display and the tracking characteristics of human eye observation, there are currently two measurement methods for dynamic image quality: (1) direct measurement method; (2) indirect measurement method. [0003] Direct measurement methods include high-speed camera method and tracking camera method. Although they can effectively simulate the smooth tracking of dynamic images by the human eye, the construction of such measurement devices is often due to the high precision of electromechanical matching, the high price of equipment configuration and the high cost of adjustment process. Difficult and difficult to achieve. [0004] The indirect measurement method is based on the measured transient...

AI Technical Summary

Problems solved by technology

Although the realization of this measurement method does not require complex optical auxiliary equipment and high-precision electromechanical matching, it cannot meet the requirements of comprehensive verification of dynamic image quality in terms of measurement signal-to-noise ratio, mathematical simulation accuracy, measurement automation, and comprehensive evaluation.

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