Nowadays, 3D displays have become a topic of great concern to people. As an emerging display technology, it faces a lot of difficulties, such as the need to wear special glasses or helmets and other equipment to view the 3D effect.
In order to solve this problem, researchers have begun to develop a new 3D technology without such limitations – eye-tracking 3D display technology.
What is eye-tracking 3D display technology?
Eye-tracking 3D display technology is a new type of display technology that senses the viewer’s line of sight, tracks the direction of human eye movement, and slightly changes the screen content according to the direction of eye movement, allowing the eye to see 3D stereoscopic images.
Displays with this technology usually do not require special helmets or 3D eyes to be worn as an aid, and can be viewed with the naked eye alone for 3D visual effects.
The display screen is not really made out of a three-dimensional picture, but the researchers used the way to find out the depth of eye perception, combined with the screen to simulate the three-dimensional visual effects.
The development of this display technology will gradually change the way people view displays in the future, and eye-tracking 3D display technology has been widely used in many fields such as art, business, and medicine.
Understanding eye-tracking 3D display technology
History
In the early days of 3D display technology, people focused on invasive 3D displays, which often required head-mounted devices and were more restrictive.
Later in 3D research, researchers began to try to develop eye-tracking 3D display technology in conjunction with computers. This technology creates displays that are less demanding on the viewer (no need to wear a device), but more demanding on the performance of the display, which requires an infrared light source and a camera to capture the eye image.
How the technology works
Eye-tracking 3D display technology can only be successful with two key core technologies: eye-tracking technology and biconvex lens technology.
Eye-tracking technology uses the reflection of the pupil’s cornea and the bright pupil for remote tracking, by adjusting the infrared light source to capture the bright and dark pupils to determine the location of the center of the pupil.
The 3D display simulates a similar movement process based on the trajectory of the eye movements, slightly altering the image, and the brain processes the two slightly different images by combining them, making us think we are seeing a 3D image with depth and stereo.
Bi-convex lens technology utilizes lenses to change the direction of light propagation, with many small lenses distributed on the surface of the display. The small lenses change the direction of light refraction, resulting in a different image seen by the left eye and the right eye, and this change is transmitted to the brain to also create the illusion of visual depth.
Advantages of Eye-tracking 3D display
Visual Effects
Eye-tracking 3D display technology has real color rendering and clear image quality, blurring the boundaries between the digital world and the real world to create an unforgettable 3D visual effect.
Distance
At present, eye-tracking 3D display technology is still under development, and the approximate distance that can be tracked to the eyeball is 4~5m, in the future, with the advancement of technology, this number will surely become larger.
Size and Resolution
The size and resolution of the display and the technology itself are not directly related, as long as the screen made by eye-tracking 3D display technology, regardless of the size and resolution, it can have stereoscopic image visualization, if you choose to use another kind of naked eye 3D LED display similar to the eye-tracking 3D screen, then, we can customize the size and resolution of the screen.
Viewing Angle
Ordinary 3D displays require the viewer to be in a specific position to be able to see the 3D effect, whereas eye-tracking 3D displays are able to successfully track the eye movement trajectory of the display as long as the user is within the capture distance, no matter at what angle he walks, thus changing the display image and allowing the user to view the 3D image.
Attractive
The ability to obtain stereoscopic visual effects without the need for glasses is undeniably attractive to the viewer, and the user’s retention time for a 3D image is much longer than that of a normal 2D image.
Uses of Eye-tracking 3D display
Robot eye-tracking
Intelligent robots have always been the direction that human beings have been vigorously exploring in the 21st century, however, the interaction between robots and human beings has always been a long-standing and difficult problem to solve.
Some people have attempted to use eye-tracking 3D display technology to enable the robots to detect, track, and predict the emotions and intentions of human beings, which has dramatically improved the intelligence and interactivity of the robots.
Automotive eye-tracking
Nowadays, eye-tracking 3D display technology is indispensable for automobile driverless technology. With this technology, automobiles are able to automatically identify roadblocks, pedestrians, and other hazardous areas during the driving process, which will make the process of automobile driving safer and more reliable, and reduce the driver’s attention consumption.
Advertising LED Display
Advertising LED display using eye-tracking 3D display technology can produce stunning images that can attract the attention of the walking audience at the first time, lengthening the audience’s viewing time of the advertisement images and deepening the audience’s impression of the product.
Secondly, the LED display with eye-tracking 3D display technology can also be connected to an intelligent data system to upload the number of times viewers watch and pay attention to the advertisements, and then analyze the data to calculate what time of the day the users pay more attention to the advertisements and what advertisements they stay for a longer time, which will help us to adjust the subsequent advertisement investment plan.
The Future Market of Eye-tracking 3D Display
The display market demand is more and more inclined to intelligence, and eye-tracking 3D display technology is a key direction to increase the intelligence of the display, in the future, people’s desire for this technology must be more and more high, and the market demand for it will be more and more big.
As the market demand grows, eye-tracking 3D display technology will also be driven to develop better and better.
Conclusion
At present, eye-tracking 3D display technology is still in the stage of powerful development, but the display results of its combination with all kinds of display screens are very amazing, especially the combination of this technology and LED display. The 3D advertisement put on the street makes people talk about it, which makes us pay more attention to this technology and have higher expectations.
