Television is an invention that subverts the way of human life, and its appearance has changed the public's vision. For a long time, TV has also occupied people's living room. With the progress of science and technology, there have been many products that can replace TV, but TV is also keeping pace with the times. The rise of various smart TVs has regained the dominance of the living room.

The reason why TV can last forever is that on the one hand, it comes from the living habits of the public, on the other hand, it also depends on the screen in front of us. If we leave the screen, can we not see the world that is not in front of us? Of course not. And the projector. However, projectors have been mostly used in the office field, and have never been able to enter the home.

It is believed that the public will not be unfamiliar with Kimi Technology. As the first projection brand to enter the Times Square in New York, the United States, Kimi Technology has been committed to building a "no screen TV". In the past 2015, around this core concept, Kimi has built Kimi Air, Kimi Xiaomi Z4X， In this era where manufacturing is impossible, Jimi has used its innovative products again and again to subvert the public's impression of "no screen TV".

The Z4 Aurora, a TV without screen, is the last work of the company in 2015. It is also a family projector representing the highest level of technology and technology of the company.

　　 "The package is tall and rich"

The first impression of the Z4 Aurora of the Kimi no screen TV is "subversion". Whether it is the projector or the popular micro projector of the large screen TV, such a beautiful package is extremely rare, and such a high-grade packaging box also highlights the high-end positioning of the Z4 Aurora. When you pick up the packaging box, you will realize the weight of this product. In fact, the size of the main unit of the polar rice Z4 aurora is not large, but what surprises will be hidden in the atmospheric packaging box?

Unfolding the packaging box makes the author feel like a kind of transformers. A packaging box instantly turns into a "combination sound".

There is a universe on both sides of the "combination sound", and two 3D glasses are hidden on the left, so that users can freely enjoy the charm of 3D movies. The 3D eye accessories included are also very rich. Each eye is equipped with a charging cable, glasses cloth and glasses bag, and a nose rest is also included. Of course, solo music is not as good as public music. A good movie should be shared with people close to it. Two 3D glasses appear in the packaging box of the Z4 Aurora, indicating that the Z4 Aurora is very intimate.

On the right side of the "combination sound", except for the power supply of the bottom floor of the Z4 Evoque, there is only this metal remote control. From the perspective of modeling, this remote control is not very different from the ordinary remote control, but its functions are quite different. First of all, from the data cable next to the remote control, we can vaguely guess that this remote control uses rechargeable lithium batteries instead of dry batteries. The main reason is that apart from remote control function, the remote control of the Z4 aurora has the functions of flying mouse and gravity sensing. The capacity of ordinary dry batteries cannot meet the endurance requirements of the remote control. In addition, the official claims that the longest endurance can reach half a year. Although the author has not used it for that long to verify the official statement, it has not been charged for a period of time, and the endurance can still be reassuring.

The adapter plate is also regarded as the standard configuration of the Z4 aurora and placed in the packaging box. Don't underestimate this simple gadget. It can be used with a tripod for daily photography. It is very convenient. In addition, the adapter plate can also access the official accessories of Jimi: desktop bracket, hanger, universal bedside frame and other special brackets (need to purchase separately).

        "An innovative" vinyl record player "

When I first saw the host of the Z4 Aurora, a TV without screen, I don't think many people would think that it is a projector and a classic vinyl record player. This kind of mix and match endows the Z4 aurora with some distinctive flavor. After all, the more classic it is, the more popular it is. It is really difficult to find any relationship between the vinyl record player and the projector, and is this design just for novelty? At that time, the vinyl record player could be said to be a subversive invention. Does the Z4 Aurora of the non screen TV of the Jimi mean that the Jimi hopes that this product can subvert people's lifestyle like the vinyl record player?

The small dot with the word XGIMI in the center of the top "vinyl record" is actually a touch key, which can be turned on and off by touching for 3 seconds.

A strip of blue power indicator is hidden on the "phonograph head" on the "vinyl record".

The design of combining the sliding lens cover and the power switch has almost become a label of the ultra meter non screen TV. This design can give consideration to lens protection and dust prevention, and allow users to turn on the ultra meter Z4 aurora in a more fresh way. In the actual experience, the process of sliding the lens cover is not so smooth. At this point, Jimi still needs to make some minor adjustments. In addition, it is recommended that the remote control dust cover sliding switch function be added to the Jimi, because when the user lifts and uses the Jimi Z4 aurora and the lifting position is high, it is inconvenient to manually slide the lens cover.

The quality of the lens is the most direct factor affecting the image effect of the projector. The Z4 aurora adopts a high transmittance coated lens, and its lumen brightness has reached the international standard 600ANSI, which is the highest brightness of all projection products under the company. The light source uses the German OSRAM LED light source, which has the characteristics of non radiation and no eye injury. The official parameters show that the service life is nearly 30000 hours. If the daily use is 10 hours, the polar meter Z4 aurora can be used safely for nearly 10 years. At the same time, the projected image resolution of the Z4 aurora is 1280 * 800, which supports 4K ultra-high definition film resources, and the maximum projection size can reach 300 inches.

When the camera slide is turned off when the phone is turned on, the Jimi Z4 Aurora turns into a Wi Fi audio, which, like the popular smart cloud audio on the market today, can directly access songs through the network and play them directly. In addition, gesture control is another highlight of the Polar Z4 Aurora. With the addition of gesture operation, the Polar Z4 Aurora in Wi Fi audio mode has good entertainment, but how about the sound quality?

Due to the limitation of hardware, the sound quality of traditional projectors is really hard hit, which is a big difference compared with TV. Under such a premise, many people can be forgiven for worrying about the sound effect of Wi Fi audio mode.

As a TV benchmarking product, the Jimi no screen TV Z4 Aurora does not want to lose to its rivals in hardware. It has made great efforts in audio, equipped with a professional level Harman/kardon sound system, and the dual channel stereo speakers inside the Jimi Z4 Aurora, whether for listening to music or watching movies, This sound system can perfectly interpret the details of sound effects. It is no exaggeration to say that the audio configuration of the Z4 Evoque is incomparable to most smart audio systems and smart TVs.

In terms of interface richness, the Z4 Aurora has also done a good job. The back includes two HDMI ports, one USB2.0 port, one USB3.0 port, one RJ45 network port, one AV port, one headphone port, one power input port and one reset port, which basically cover several mainstream input ports at present. The entire interface area is arranged reasonably and beautifully.

The cooling holes beside the interface area are designed with diagonal strip holes, and the internal cooling fins are clearly visible. There is an automatic speed regulating (10 gear) fan inside the Z4 Evoque, which can effectively remove the heat inside the body and maintain the stability of the host during operation. In addition, the noise control of the Jimi Z4 aurora is also excellent. The noise generated during normal operation is much smaller than that of ordinary projectors, which is within an acceptable range.

Open the turntable at the bottom of the polar meter Z4 aurora, and you will find a hard disk compartment, which can accommodate a 2.5 inch hard disk. Although the Ejimi Z4 Aurora comes with 16GB high-speed flash memory, this capacity is obviously not enough for some users who like to collect movies. Therefore, it is quite practical for these users to access large capacity hard disks. It should be noted that it is better to install a solid state disk in the hard disk compartment. In addition to the fast storage rate, the most important thing is that the location of the hard disk compartment near the fan will generate high-frequency vibration when the host is working, while the mechanical hard disk has poor seismic resistance, which may cause data loss.

        "Perfect Big Vision"

Since the projector needs a plane when it works, only the absolute plane can project a square picture. Therefore, it is inevitable to adjust the picture when using the projector, and it is no longer so difficult to adjust the picture with the development of projection technology today.

Focusing is the first step to obtain an almost perfect picture. Jimi Z4 aurora adopts the electric focusing mode, which is much faster and more accurate than the manual focusing of low-end projection. In addition, there is a focus gear at the bottom of the remote control of the Jimi Z4 aurora, which can be manually focused using the volume key on the remote control.

The irregular projection picture is a problem that most projection users will encounter, so trapezoidal correction is a very important function for the projector. However, due to the high cost, the left and right trapezoidal correction often only appears on the ten thousand yuan level projector. However, the 3799 polar meter flat screen TV Z4 aurora also has this function. Users can freely adjust the picture based on the four corners according to the deformation of the picture, even if the polar meter Z4 aurora is placed on the diagonal, The square picture can also be obtained through manual adjustment of left and right trapezoidal correction.

If it is not possible to confirm whether the focusing is accurate or whether the picture needs to be corrected, you can call up this reference picture of polar meter screen less TV focusing to help adjust the picture to obtain the best display effect.

In terms of projection technology, the polar Z4 aurora adopts the DLP optical projection technology of Texas Instruments, as well as a number of image quality enhancement technologies and brilliant color enhancement technologies. In addition, the lumen brightness of 600600ANSI makes the polar Z4 aurora perform well in both day and night, in terms of audio and video playback and text display.

▲ Daytime projection effect 1

▲ Daytime projection effect 2

▲ HD wallpaper display effect 1

▲ HD wallpaper display effect 2

▲ Text display effect

▲ Mobile phone projection display effect 1

▲ Mobile phone projection display effect 2

From the above live shooting projection effect, we can easily see that the gorgeous technical parameters described in the previous article are not just decorations. The images projected by the polar light of the Z4 are very uniform from the quality of the picture to the brightness. The images are clear and delicate, and the image restoration ability is acceptable. And the shock viewing effect of the 100 inch screen is beyond the reach of ordinary television. The projection effect taken under the camera lens has a certain deviation, and the actual effect is no less than that of the photo.

Although Jimi Inspiration wants to build a screen less TV, the Z4 aurora is essentially a projector. From the perspective of the projector, the picture effect under normal light in the daytime is already very excellent, but there is still a certain gap compared with the display effect of the TV in the daytime. In addition, it is better to keep a certain distance to get the best effect when using the polar Z4. If the distance is too close, there will be obvious grids on the screen, which is the same for most large screen TVs.

3D technology has conquered many movie fans with its unparalleled sense of presence, and the emergence of IMAX has also made many people choose to go to the cinema to watch movies for the most fundamental reason. But with the Z4 aurora, you can experience the immersive feeling brought by 3D blockbusters at home. Of course, to see 3D blockbusters, you need a pair of 3D glasses first. As mentioned in the previous article, two 3D shutter glasses are attached to the Z4 aurora. You can use the USB cable for charging and endurance. The frame and nose rest are moderately hard and comfortable to wear.

If there is no film source, 3D glasses are just a decoration, and it is well-known that 3D film sources are hard to find. We will not consider how many 3D video resources are available for viewing, because the Z4 aurora adopts another more reliable way to provide 3D film sources - 2D to 3D. In short, any 2D movie (regardless of online and external sources) played on the Z4 aurora can be converted into 3D movies. However, not only movies, but also TV dramas, concerts, ball games, news and even small videos shot by oneself can present 3D visual effects as desired.

▲ Call up 3D settings during video playback

▲ 3D glasses viewing effect

　 "Different interactive experience, rich video resources"

Jimi Z4 Aurora has its own GMUI system built in, which is customized based on Android 4.3, and is not very different from the current TV box UI. From the perspective of user viewing, the icon adopts a larger size, which is clear at a glance. The difference is that, considering the business office needs of users, Jimi has added a business desktop in the UI, and can switch freely on the UI desktop, so that users can use the required office suite more intuitively and improve their work efficiency.

In terms of video resources, with the deep cooperation between Jimi and Mango TV, users can freely watch the exclusive video resources of Mango TV, including Hunan Satellite TV's own trump card entertainment programs, TV dramas, etc. In addition, Jimi Z4 Aurora also gave a mango VIP membership card worth 720 yuan to watch more high-quality video resources.

Since the development of intelligent devices, human-computer interaction has undergone very intuitive changes. From keys to touch, and from voice to body feel, human-computer interaction has refreshed our cognition again and again. It can be said that the success of intelligent devices in the future largely depends on whether they can provide users with intuitive and convenient interaction methods, Let smart devices and users form a good "communication". No matter you are used to keys, touch, voice, or somatosensory operation, the Z4 Aurora can satisfy you. In terms of interactivity, it is very comprehensive.

▲ The metal remote control is the only carrier of physical key operation on the polar Z4 aurora. On the basis of retaining the physical keys, it integrates voice, body sense and flying mouse control, and diversified interaction modes are available for users to choose.

▲ The most popular place for somatosensory operation is on the main unit of the polar Z4 aurora, which is used more in the WiFi audio mode. In the Wi Fi audio mode, you can complete the song cutting operation by waving from left to right on the "vinyl record". In addition to gesture operation in Wi Fi audio mode, volume can be adjusted in projection mode and Wi Fi audio mode by waving clockwise and counterclockwise on vinyl records. This human-computer interaction mode breaks the shackles of the remote controller and greatly enhances the playability of the polar Z4 aurora.

▲ By connecting with the smart phone under the same network as the Z4 aurora, the Gemi assistant can make your phone become an intelligent remote control instantly, and can use most of the functions of the original remote control.

▲ The interface of the polar Z4 aurora can also be synchronized through the polar assistant. After synchronization, you only need to touch to complete the corresponding operations as you do with your mobile phone in daily use. The flow of this function is average in actual use, but this performance is also related to the poor network environment.

　　 「 Hardware parameters · comprehensive evaluation 」

Let's take a look at the official parameters. The following parameters are from the official website of Jimi Technology:

After a period of experience, comprehensively evaluate the advantages and disadvantages of the polar rice Z4 aurora:

advantage:

● High end packaging, high quality and abundant accessories;

● The appearance is novel, which copies the classic of the vinyl record player and gives the taste of the extreme light trend of the ultra meter screen less TV Z4, and the twilight gold color matching highlights the fashion taste;

● Equipped with ten thousand yuan level left-right trapezoid correction, it can project a more perfect picture at any angle;

● Professional Harman Carton sound system is comparable to professional sound system;

● The 600ANSI lumen projection picture effect is excellent, and the maximum projection size is 300 inches. The visual experience is shocking;

● The metal remote control is powerful, rechargeable, Bluetooth connected, and has a long standby time. It also has the functions of electric focusing, voice operation, flying mouse, somatosensory operation, and game handle;

● Excellent human-computer interaction, covering the current mainstream control methods such as keys, touch, body sense and voice, breaking the barrier of human-computer "communication";

● The addition of independent business UI meets the needs of users with business needs to work efficiently;

● The 2D to 3D function of video source maximizes users' demand for 3D film source.

Disadvantages:

● Lens slide cover can only be manually operated, and in some special cases, such as lifting, it is not convenient for users to manually open the lens cover, so adding a remote control function to open the lens cover will be more user-friendly;

● The mobile phone uses the polar meter assistant to synchronously operate the polar meter Z4 aurora on the same screen, which is not smooth and has high requirements for the network environment;

● Automatic focusing and automatic trapezoid correction are not supported. Although automatic focusing will occur when the machine is turned on, manual focusing is required to change the position of the host during projection, and trapezoid correction is always manually adjusted. If automatic focusing and automatic trapezoidal correction can be added to reduce the manual adjustment of the projection picture by the user, the performance of the aurora of the Jimi Z4 will be more perfect;

● Although the projection effect in the daytime is better than that of the projector, it still cannot compete with traditional TV and needs to be improved.

After the experience, the impression of the Z4 Aurora, a non screen TV, is described as "subversion" in one word. A projector pretending to be a vinyl record player completely subverts the image of the projector in terms of appearance design, and refreshes the author's understanding of the projector in terms of operation mode, viewing effect and product details. Although it is not perfect, and although such a "screen less TV" can not completely replace TV in some aspects, as long as Jimi Technology can work in this direction without hesitation, I believe that Tianzimi will be able to create a real screen less TV, which will subvert people's lives like TV and vinyl record player, and become an irreproducible classic.