IPS ( In - PlaneSwitching) technology is Hitachi's LCD panel technology introduced in 2001, commonly known as Super TFT. This technology is widely used due to its high viewing angle, fast response speed, and accurate color reproduction, and has become the most used development panel technology in the world for desktop monitors.
At the same time, in the development process of more than 20 years, IPS has also derived many variants. In addition to the fundamental S-IPS (second generation IPS), AS-IPS (third generation IPS), there are many special types.
For example, the recently popular Nano IPS panel is to add DE nanoparticles to the traditional IPS panel backlight to absorb excess three primary color light, so that the picture is more colorful and the color is more accurate.
There is also Fast-IPS technology specially developed for gaming esports players, which can compensate for the shortcomings of the traditional IPS panel response time is too high, resulting in serious smearing in FPS games.
However, no matter how the IPS family expands its territory, it only dares to look at an important indicator of the display "contrast" and does not take a step towards it, which is due to the principle of IPS. The contrast ratio of the above various IPS panels can often only reach 1000:1, and the Nano IPS can only go up to 7/800:1, which is accompanied by the phenomenon of uneven brightness (dirty screen). Too low a contrast ratio has led to the traditional IPS panel screen when playing some large light ratio pictures, the screen seems to be covered with a layer of gray fog.
In order to change this situation, the IPS family introduced Mini-LED technology, which uses multi-partition backlight control to achieve OLED-comparable contrast and brightness performance, but due to high price and yield problems, it is not widely available in the market. LG has launched a technology called "Black-IPS". As the name suggests, this technology can improve the black position and contrast performance of the IPS panel, so that the contrast of the picture is raised, according to the official, it can reach "2000:1" which is twice the current mainstream product.
The first display dell U2723Q/U3223Q series of monitors equipped with this technology are already on the shelves. In the official information, it can be seen that these two products use 4K level resolution, have 10bit color display capabilities and wide color gamut support, and both have obtained HDR400 certification.
The most important thing is the contrast between the two products, which is officially declared to reach 2000:1. This is at the top of the current IPS panel display, and the high contrast ratio can make the picture appear more intense, stunning color performance and more ideal black performance, so that HDR content can be more natural. Since Black IPS technology is based on the panel level, there is no backlight of more than 500 partitions in Mini-LED, which is much less in terms of design and manufacturing costs.
Even for the Dell U series for professional users, the price of both products is only 30-40% higher on the average professional 4K display. It is believed that after the popularization of this technology, there will be more high-brush "Black-IPS" to meet with us, and the price is expected to drop below 3,000 yuan. Accepted by more consumers.