SiliconCore said that it would show a new Z(Impedance) Adjustment for Color Homogeneity, ZACH, technology, that is claimed to improve the uniformity and grey scale accuracy of LED displays, allowing the better display of HDR content. The company believes that the technology will be important for command and control and simulation environments as it will mean an effective grey scale of 14 bits, with a dynamic range of 18,000:1. The company also claims that it will allow the display of gamuts even beyond Rec. 2020. Each individual LED is measured and the circuit is included in SiliconCore’s driver chip.
The technology will be shown on a 1.2mm display at Infocomm.
Analyst Comment
SiliconCore has privately shown us images of a “side by side” which suggests a good result from this driving scheme, but we’ll reserve judgement until the show next week. However, one of the frustrations of the LED business is that unless you have access to multiple LED displays side by side, it can be hard to really understand the quality of the displays. Clearly very bad and very good examples are clear, but it can be hard to unpick the quality as so much depends on the understanding that those who made the demos had of the image processing and display. I learned more than 30 years ago to be very sceptical of any sense that I could really remember how good a particular display looked. If it’s not a side-by-side comparison, with identical content, it’s dangerous to believe you know who has the best display. I must say that one of the features that made Infocomm compelling in years gone by was the ‘Shoot Out’ among different displays. Could the dropping of that activity be one of the factors that has led to a relative decline in the importance of Infocomm? (BR)
SiliconCore’s LED shown at ISE in Feb.
