LumiCol 1900 - 2-in-1 imaging colorimeter for fast and precise display characterization

By combining their expertise and competencies in the field of display metrology, a novel imaging colorimeter for fast and precise luminance and color measurements of flat panel displays was developed by Konica Minolta and Instrument Systems.

The LumiCol 1900 is a 2-in-1 device, combining an RGB CMOS sensor for fast 2D image acquisition with a spot colorimeter for precise tristimulus color measurements. The colorimeter measurement, performed in a spot in the center of the acquired image, is used to correct the values derived from the CMOS camera, guaranteeing colorimeter precision across the 2D image. As a result, the LumiCol 1900 enables a fast, but still precise characterization of the whole display area in one shot, making it ideal for automated production and quality control.

LumiCol 1900 imaging colorimeter

The spatially resolved measurements of the LumiCol 1900 allow the calculation of homogeneity or the evaluation of Mura. Additionally, the incorporated CA-310 provides the typical functionalities of a conventional colorimeter and display color analyzer such as measurement of luminance, white balance, color gamut, color gamma, contrast ratio, or flicker.

Powerful new software "LumiSuite"

The comprehensive new Instrument Systems software "LumiSuite" comes with a completely new and user-friendly GUI for laboratory applications. Furthermore, a software development kit is available for easy implementation into any production line.

Two different versions of the LumiCol 1900 are available. Type "U" (universal) can be used for all display types. Model "F" (flicker) is designed for liquid crystal displays and includes measurement of flicker characteristics.

Technical Specifications

LumiCol 1900
ModelsDescription
Universal (U)All display types, no flicker measurement
Flicker (F)For liquid crystal Displays, including flicker measurement (Contast and JEITA method)
Measurement modes
2DLuminance, color
SpotLuminance, color, flicker (only model F)
Camera secifications
Effective resolution (h x v)≈ 1900 x 1180 pixels (2.2 megapixels)
Pixel size5.86 μm x 5.86 μm
Measurement performance
Measurement range 0.01 cd/m2 - 5000 cd/m2
Luminance accuracies1 1000 cd/m2 (ND filter) 100 cd/m2 1 cd/m2     0.3 cd/m2    
Accuracy to reference
instrument2
1.2 % 1.2 % 2.0 % / 1.5 %3 3.5 % / 2.0 %3
Color accuracies1 1000 cd/m2 (ND filter) 100 cd/m2 1 cd/m2   0.3 cd/m2    
Accuracy to reference
instrument2
0.0015 0.0015 0.0025 / 0.00153 0.0030 / 0.00203
Measurement time 1000 cd/m2 (ND filter) 100 cd/m2 1 cd/m2   0.3 cd/m2    
Measurement time Hybrid
Mode4
0.5 s 0.5 s 1.5 s 3.5 s
Measurement time CA-310
only4
65 ms 65 ms 330 ms 1 s
Flicker (only model LumiCol 1900 F)
Measurement range > 15 cd/m2
Display range (Contrast method)0...999 %
Accuracy (Contrast method)±1 % / ±2 % (30 Hz / 60 Hz; 10 % sine wave)
Accuracy (JEITA method)±0.5 dB (30 Hz; 10 % sine wave)

1 All measurement uncertainties apply to a threefold standard deviation (3σ).
2 Reference is a spectroradiometer, target a display with white screen.
3 Measured with low luminance mode.
4 Depends on PC processing capability