License to enable additional tests for evaluation of display mura according to human visual perception
Human visual recognition of uniformity variations and other defects in displays is dependent on many factors including brightness, color, shape, size, and severity of deviations within the area of the display. Developed to allow automated visual inspection systems to accurately identify JND—artifacts just noticeable by a human observer—TrueMURA™ evaluates display mura (areas of non-uniformity) in a way that simulates a human observer’s perception of defect severity. These algorithms can ignore mura that is imperceptible to human observers and identify various types of mura that can be passed and failed based on evaluation criteria.
The TrueMURA Software license provides several mura tests in addition to what is offered in standard TrueTest Software. TrueMURA allows users to define a complete set of measurement parameters and set pass/fail criteria for different types, locations, and severities of mura in an image. The software license includes specific tests for identification and measurement of mura types including:
Diagonal Line Mura
Available in standard TrueTest™ Software:
Color Edge Mura
Diagonal Pattern Mura
Spot Pattern Mura