Display Characterization and Production Testing

At Gamma Scientific, we perform a wide array of display tests to ensure accurate display evaluation and increase the productivity of production. 

Displays today are widely used in many applications like smart devices, wearables, TVs, automotive/aircraft displays, exhibition displays, AR/VR/HUD displays, etc. For many devices, displays have become the primary part that interacts with the end-user, therefore it’s performance is critical to the success of a product. 

Display technology is evolving very fast from traditional LCD technology.  New technologies such as OLED, Quantum dots mini, and µLED significantly improves the viewing experience for higher resolution, wider color gamut, and increased contrast. Additionally, the display form factor is changing from rigid to flexible, curved, and even to stretchable, borderless, etc.

Accurate and efficient testing helps ensure consistent product quality, improves supply chain efficiency, reduces production costs, and thus reduces the time to market. All of which translates to an optimized customer user experience. Gamma Scientific instruments are able to measure parameters such as luminance, chromaticity, color gamut, contrast, flicker, uniformity, and more.

With increasing color gamut, traditional testing technologies using filter-based colorimeters are no longer adequate. Spectrometer based systems are required for accurate color and luminance measurements.

Gamma Scientific provides ultra-high precision Spectroradiometer-based systems, such as the benchtop GS-1290-DMS and compact GS-1160B to ensure highly accurate NIST-traceable standards are met. Curved displays can be tested by the fully automated GS-1290-DMS-RBT Robotic system. The GS-1164 multi-angle spectroradiometer and VDU-1160 2D spectral imaging colorimeter combine laboratory-grade accuracy and flexibility with high speed and durability for demanding production environments.

Devices including Virtual Reality, Augmented Reality and Head-up displays (AR, VR, and HUD) must be tested and characterized by manufacturers and those who integrate, incorporate, or purchase them. This may include Research and Development activity, quality control, or on the production line.  Applications requiring high quantities of equally performing units may also require test and characterization tools. The NED-LMD Near-Eye Display Measurement System provides test capability for a wide variety of parameters including luminance and color uniformity, contrast, pixel/line defects, image virtual distance, field of view, image distortion, resolution and response time. Measurement systems must also be configured in such a manner that they do not introduce error into the measurement process, or unrealistically emulate pupil rotation due to camera design limitations.

Through decades of experience and knowledge in developing spectrometer based test solutions, Gamma Scientific provides high-speed spectrometer based testing solutions at an affordable cost.  Unlike filter-based colorimeter systems, Spectrometers deliver accurate results without the uncertainty associated with color filter measurement systems.

Highlights of our spectrometer based test solutions include:

  • High accuracy and repeatability
  • High-speed spectrometer measurements
  • 2D uniformity for brightness and color
  • View angle performance
  • Comprehensive NED display characterization
  • Systems back by ISO 17025 and NIST traceable calibration