What They Say
Barco released a blog post that highlighted its Sense X auto calibration system for LCD walls, which is intended to ensure both inside each display (intra-tile uniformity) and over the complete wall (inter-tile uniformity). Barco believes it is more advanced than similar systems from competitors and highlights that it works continuously to ensure constant performance.
The blog post shows how one of its Unisee walls looks before calibration and after. Before, the typical darkening of each panel towards the bezel is apparent, but after, it is eliminated. The system is said to used 30,000 reference points and is enabled by a high quality camera. The firm claims that it creates uniformity of
- 9 points: 98%
- 13 points: 98%
- 21 points: 91%
The system creates a 3D LUT for 64 RGB reference levels, with 10 bit precision. A Barco proprietary algorithm applies the corrections that lead to the smooth images on the Barco LCD displays.
What We Think
I spent quite a bit of time trying to find an image I took of a video wall in Dubai when I was visiting the Gitex show one year. Unfortunately, I couldn’t find the original image but I did find the image as we used it in our report in 2013. It has suffered from compression, but highlights the problem of non-uniformity that I saw on this video wall. It really was awful and this reflected, I heard, that there was a real problem in finding budgets for maintenance. While capital budgets were available for building this kind of display, mall owners were extremely reluctant to spend money to keep them properly adjusted.
I later heard that Samsung had paid to have the wall corrected as it reflected so badly on the brand for it to be seen like this, but I didn’t get a chance to go back and look last time I was ther in 2015. (BR)
