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2025-04-09
In the current era of continuous evolution of display technology, Mini LED and Micro LED technologies are becoming new engines for industry development. However, as the spacing between LED products continues to shrink, the issue of color performance on display screens becomes increasingly prominent, becoming a key factor restricting the improvement of visual experience. As a leading global provider of video image processing solutions, Kalet is injecting new vitality into the color performance of display screens through a series of innovative technology solutions, leveraging its profound technical accumulation in the field of color calibration.
Two major challenges constrain the color performance of display screens
In recent years, with the widespread application of Mini LED and Micro LED technologies, the color issue of display screens has gradually become a focus of industry attention. Ruan Shi'an pointed out that the poor color performance of display screens is mainly due to two types of problems:
Firstly, inherent display defects on the screen are one of the important factors affecting color performance. For example, the common issue of inconsistent brightness and color in MLED displays can lead to issues such as pockmarks and color cast on the screen; Individual differences in IC can lead to color block issues; The color gamut of the lamp does not match the corresponding display standard, resulting in inaccurate display.
In addition, there are common thermal effects in the industry, which can be mainly divided into two categories. One is that RGB lights of different colors have inconsistent light attenuation with temperature changes, resulting in inconsistent color temperature of the screen in cold and hot screen states. The second issue is uneven heat generation and dissipation, which can result in regional redness and blurriness.
In addition, the non-linear photoelectric response characteristics, color display issues caused by high scanning, and ink consistency are all display effect problems caused by inherent defects in the screen body.
Secondly, the source of color issues in MLED displays is also due to the diversification of market demand. Ruan Shi'an said that taking COB as an example, the current industry's COB is mainly P1.2 and below. The smaller the dot pitch, the more likely the audience is to watch up close, and the higher the requirements for image quality. In addition, when LED displays are applied in the market, different application scenarios have different requirements for the image quality of the display screen.
Three New Breakthroughs in Kalet Color Calibration Technology
Faced with the multiple challenges of color calibration for display screens, Kalet has developed a series of industry-leading calibration technology solutions through technological innovation, covering scientific level calibration systems, production line automation calibration equipment, and ink sorting systems.
Carlet Scientific Calibration System
Kalet's scientific calibration system consists of a scientific calibration camera CCM6000 and Calibration Pro professional calibration software, which can achieve color correction of MLED display screens on a light by light basis. This system has the following four major characteristics:
High precision: Using a 16 bit high-precision photosensitive chip and a constant temperature cooling system, the brightness correction accuracy can reach ± 1%, and the chromaticity correction accuracy can reach ± 0.003, which can meet the precise acquisition of a minimum brightness of 0.01 nit.
Biomimetic calibration: Using XYZ filters that comply with the CIE1931 standard, simulating the physiological characteristics of human visual perception, making the calibrated screen more suitable for human viewing.
Rich adaptation: Thanks to powerful hardware support, Kalet's scientific grade calibration system can perform high brightness correction, low brightness correction, and full grayscale correction on various types of screens, solving the problem of uneven screen display and presenting a perfect display.
High efficiency: With an ultra-high resolution of 61 million pixels, combined with software's super-resolution imaging algorithm and sub-pixel positioning technology, 4K display calibration can be completed within 8 minutes.
