Le Xiang Chen Chaoyang: Products are the entrance to the VR ecosystem

According to the news, iQIYI VR Summit was successfully held in Shangfang Garden on the afternoon of July 26. A special report was conducted on this event.

At the summit, LeXiang CEO Chen Chaoyang made a speech. In his view, products are the entrance to the VR ecosystem. As a CEO with a technical background, Chen Chaoyang focused on explaining the impact of factors such as refresh rate, latency, field of view, and resolution on products.

The following is the transcript of Chen Chaoyang’s speech:

Hello everyone, I am very honored to accept the invitation from iQiyi to attend this meeting today and share with you our views on VR. Just now, Mr. Duan did a lot of things about the VR ecosystem. I think for this large VR ecosystem, products are the entrance to the system, so today I still hope to talk more about our virtual product design. I have always liked to compare dreams to the virtual world, because for dreams, I think dreams are the most important driving force for people to pursue the virtual world, because in real life, there are often many dreams that cannot be realized. We want to go to the sky and embrace the moon, but we are afraid of heights, we want to go to the beach, but we can't swim, and we want to travel to the stars to experience the figure of the earth, but it takes 30 million years to get there by spaceship, so these dreams cannot be satisfied in real life. Many people often joke that they want to marry Lin Chiling, but in real life, your wife may be Han Hong. I think how to achieve these dreams? This is virtual reality, which can be done.

When it comes to the design of virtual reality helmets, we use four coordinates to represent the field of view and delay. When we design a full-image virtual helmet, we look at a 5-inch mobile phone, which is about 18 degrees. When we use a full-image helmet, the field of view is only 60 degrees. We have achieved 120 degrees, which is currently the highest in the industry and can provide the best sense of clarity. This is a light diagram. The LCD screen forms an image on the retina of the human eye through a lens. For those myopic people within this range, they can use our helmet with naked eyes and achieve the 41-degree non-spherical optical design. Another difficulty for optical design is the pupil distance. We know that everyone's pupil distance is different. When we fit glasses in an optical store, the optometrist needs to know your pupil distance accurately in order to fit the lenses. How can we make a unified product and put this product on all people with different pupil distances? This is more troublesome. In our actual user communication process, users hate this thing and want the simplest things without any manual operation. Can we make a helmet that is ready to wear and use? This is our optical advantage. We have achieved ready to wear and use, and it is completely optically adaptive. Therefore, for people with a normal pupil distance of 54 to 74 mm, they can experience virtual reality immediately when they put on the helmet.

The screen is our core. There are two types of screens: LCD and organic light-emitting diode. For (English), the first generation of products uses LCD screens, and the second generation abandons this LCD. Currently, there are two products in the industry that use (English) screens for mass production. One is (English) and the other is ours. Why use IKOLED screen? This screen is very expensive, and the cost is about twice that of LCD screens. Why do we use such an expensive screen? Of course, it is because of its incomparable and very good performance advantages. The Samsung IKOLED screen is used. Samsung has a monopoly in the market here. It is very difficult to make an IKOLED screen. It requires very powerful drivers and support. After three months of negotiations with Samsung, Samsung agreed to cooperate with us and become the first domestic partner in this field and its strategic partner. How is it better than LCD screen? It is a very ideal display material that completely beats LCD screens in terms of brightness, contrast, color, etc. Such a huge advantage on mobile phones is actually not particularly obvious, because on mobile phones, users do not need this screen to have an excessively high response speed. However, there are two huge advantages in helmets, which makes helmet manufacturers have to choose IKOLED's response speed, because the response speed is the time it takes for the screen to display a color. The faster this time is, the clearer and more stable the displayed image will be. Especially when watching high-speed sports images, this screen must be selected. The response time of helmets that people can generally accept is about 4 milliseconds, but if our helmets use LCD screens, the click time is about 30 milliseconds, which is very uncomfortable for the human eye. You will find that the tailing is obvious, just like when watching a big TV at home, you often see the tailing phenomenon during the World Cup because the magnifying glass is magnifying. The response time of IKOLED screen is one thousand times that of LCD screen, within one millisecond, and only this screen can completely solve the tailing phenomenon.

Eye protection, regarding eye protection issues, everyone pays attention to the health of their own eyes. In the normal spectrum, harmful blue light under 425 nanometers can be seen. All of them use IKOLED screens, while LCD screens almost do not have them. When we, as manufacturers, have to consider the user's eyes, we must use IKOLED screens, so IKOLED screens are more eye-protective.

Refresh rate. When we make helmets, the refresh rate refers to the speed at which the image on the screen is updated within one second. The faster it is, the more stable the image is. The refresh rate on mobile phones is also 60, which is more than enough for mobile phones because users do not need such a fast rate. However, the helmet is far from enough and requires a refresh rate higher than 60. Ours is 75 Hz, which greatly alleviates user dizziness.

Delay is actually the result of the optimization of the entire product. Many guests mentioned the problem of helmet dizziness just now. What is the main reason for user dizziness? Among them, delay is the most critical technical reason. Another reason is non-technical and content-related. If you want to make a product for extreme users, the lower the better. What kind of delay is low enough? When we did academic research in the past, in fact, the data of this parameter delay was generally within 20 milliseconds, which is a delay range that users cannot feel. Currently, there are only a handful of manufacturers that can achieve 20 milliseconds. (English) About 20 milliseconds, our delay is about 19 milliseconds, which is currently well controlled in the industry.

Interaction, our Dapeng helmet has a simple display on the left side of the venue. Interaction refers to what kind of interactive method should be used to play games when using the helmet. When designing the Dapeng helmet, we used an open system design. It is compatible with all mainstream things in the world, such as hardcore boxes, Kinect, inertial combinations, and gesture capture. As for the game, Dapeng helmet also has its own game SDK, which is used by more than 20 domestic game manufacturers. It is also version 0.2. Here, we welcome all users who are interested in game development to use our Dapeng DeepooSDK0.2, which can be downloaded from our official website.

We are also very concerned about product quality. Our Dapeng helmet has undergone six or seven hundred tests before it was put on the market, including high temperature test, life test, swing test, delay test, dust test, etc. The packaging box of our Dapeng helmet can bear a weight of 150 kilograms. Generally, two people can stand on it without any problem. I think the product quality is the best in the industry in China.

This is the industrial design photo of our helmet. This is its front and side photos. We have already demonstrated it on the left side of the venue today. At the same time, we have made a virtual reality game platform, Dapeng Assistant. The profit-sharing rules for game developers are as follows: they get 70%, and we take 30% for basic platform operation and maintenance.

The first batch of helmets were sold out on JD.com crowdfunding. Today we are selling the second batch, which will arrive in early September. If you want to use the Dapeng helmet, I have your own way to buy it. You can place an order at the JD.com flagship store. The price is 1,799 yuan. For this product, all the screens and parts we use are the most expensive in the country. We think it is a very suitable price. We are also a content distribution platform for panoramic viewing. On June 25, we broke through 1 million users. For example, the mobile VR box solution is currently compatible with all mainstream VR boxes on the market. This is our company's slogan, "Dapeng comes from afar, and he is very happy."

As a winner of Toutiao's Qingyun Plan and Baijiahao's Bai+ Plan, the 2019 Baidu Digital Author of the Year, the Baijiahao's Most Popular Author in the Technology Field, the 2019 Sogou Technology and Culture Author, and the 2021 Baijiahao Quarterly Influential Creator, he has won many awards, including the 2013 Sohu Best Industry Media Person, the 2015 China New Media Entrepreneurship Competition Beijing Third Place, the 2015 Guangmang Experience Award, the 2015 China New Media Entrepreneurship Competition Finals Third Place, and the 2018 Baidu Dynamic Annual Powerful Celebrity.