Description
Whether LCD or OLED technology – for modern consumer electronics, today’s user expects a perfectly homogeneous, true-color visual experience. This places high demands on the measuring instruments for quality testing in the production process, to eliminate fluctuations in uniformity and effects such as flicker or Mura.
With the LumiCol 1900, Instrument Systems and Konica Minolta have developed a 2-in-1 instrument tailored for display testing and adjustment in production environments. It combines the proven CA-310 spot colorimeter from Konica Minolta as a reference instrument with a modern RGB CMOS sensor 2D image acquisition.
The CA-310 spot colorimeter measures the luminance and color values in a spot at the center of the camera’s field of view. These values are then used to correct the individual pixels of the simultaneously obtained 2D image of the camera.
With the LumiCol 1900 the entire display area can thus be characterized quickly and at high level of precision in a single step. The associated LumiSuite software developed by Instrument Systems can be integrated into any production line via SDK (software development kit). For laboratory use it is controlled by a newly designed, user-friendly GUI (graphical user interface) and offers a wide range of an analysis tools.
Main fields of application
The LumiCol 1900 is the ideal solution for quality control in production environments where speed, high precision and cost-effectiveness are priorities.
Features
The following characterizations of screen properties can be performed with the LumiCol 1900:
- Measurement of luminance and color
- Determination and adjustments of color gamut, gamma curves and white balance
- Flicker measurements (LumiCol 1900 F model only)
- Calculation of homogeneity and Black Mura analysis
Two versions of the LumiCol 1900 are available:
- Type “U” (Universal): can be used for all types of screens
- Type “F” (Flicker): permits measurement of flicker values in LCDs
Specifications
| LumiCol 1900 |
| Models |
Description |
| Universal (U) |
All display types, no flicker |
| Flicker (F) |
For LC displays, flicker (contrast and JEITA method) |
| Measurement modes |
| 2D |
Luminance, color |
| Spot |
Luminance, color, flicker (model F only) |
| Camera specifications |
| Effective resolution |
≈ 1900 x 1180 pixels |
| Pixel size |
5.86 μm x 5.86 μm |
| Measurement performance |
| Measuring range |
0.1 cd/m2 – 1000 cd/m2 |
| Luminance accuracy1 |
100 cd/m2 |
1 cd/m2 |
| Accuracy to reference instrument2 |
1.2 % |
2.0 % |
| Color accuracy1 |
| Accuracy to reference instrument2 |
0.0015 |
0.0025 |
| Measurement time |
| Measurement time 2D3 |
< 0.5 s |
< 1.0 s |
| Measuring time CA-3103 |
< 0.065 s |
< 0.33 s |
| Flicker (LumiCol 1900 F model only) |
| Measurement range |
> 15 cd/m2 |
| Display range (contrast method) |
0…999 % |
| Accuracy (contrast method) |
±1 % / ±2 % (30 Hz / 60 Hz; 10 % sinus) |
| Accuracy (JEITA method) |
±0.5 dB (30 Hz, 10 % sinus) |
1 All measurement uncertainties apply to the threefold standard deviation (3σ).
2 Reference is a spectroradiometer on a display with white screen.
3 Depending on PC processing capability.
