Exclusive perfect 3D experience Sony Headset Theater detailed evaluation

[PConline Review] As early as September last year, Sony released this bizarre head-mounted display device, the HMZ-T1, which caused heated discussion at that time, but until now this product came to our evaluation room. . Regardless of technology or use, the Sony HMZ-T1 can be called an alternative, the most notable of which is the two 0.7-inch OLED panels, and the other dual-screen brings a perfect 3D experience, there will be no tradition Due to the shortcomings of active shutter 3D crosstalk and flicker, the 2D and 3D images of this product are worth looking forward to.

Sony HMZ-T1 Picture Evaluation Forum Quote

In addition to the aforementioned screen advantages and 3D graphics, the 0.7-inch OLED panel can simulate a 45-degree wide viewing angle because of the special optical lens. An official statement is that it can simulate a 750-inch distance at 20 meters. Movie screen effect. In addition, the unique wearing style of Sony HMZ-T1 is also the focus of everyone's debate, so in the following article we will also carry out detailed trial and answer questions on wearing.

Appearance: sci-fi style headband partially separated processing unit

The most eye-catching aspect of the Sony HMZ-T1 is the UFO-style head-mounted display, but this is just the output part of the device. The complete machine also includes a separate processor unit, which provides the picture sound signal and the power supply.

Sony HMZ-T1 Picture Evaluation Forum Quote

First of all, look at the HMZ-T1's head-mounted display section. The overall shape is arc-shaped. The black-and-white color scheme has a sci-fi movie prop style. The white part is a polished plastic material, and the black part is a matte plastic material. The fuselage can be divided into two parts, the fixed display part and the earphone part which is the same as the separated wings. After turning on the T1, the white area on the front part of the headset will have a blue light, which looks quite technical.

The volume of the entire head-mounted portion is 210 x 126 x 257 mm, and the weight of about 420 g does not seem to be light, but it is not easy to feel tired due to the proper arrangement of the supporting points in actual wear. It can be seen that there is a thin signal line in the headband. This line will be responsible for transmitting the signal output by the processor unit. The measurement of the length distance is about 3 meters, and there is basically no need to worry about the problem that the line is not long enough for use.

The display part is the core component of the head mounted device. From the outside, you can see two recessed lenses with multi-layer coating reflections and a complex lens design inside, so that the 0.7-inch screen can be enlarged to normal size and not Loss of any quality. When worn, the human eye does not stick to the lens, leaving a certain gap, and the invagination lens also plays a role in not contacting the eyeball.

The operating area is located at the bottom of the headset. It can be easily selected in the actual use. It is mainly for the power button, cross navigation, volume control and menu keys. It can be guessed that the HMZ-T1's operation menu is very simple.

For the head-mounted display, wearing is an exquisite thing. The main supporting points of the HMZ-T1 are mainly the front forehead supporter and the adjustable headband attached to the back of the head. Therefore, the HMZ-T1 will not be obvious when worn. The sense of cumbersomeness. The headband portion can be adjusted in length to accommodate different people's head shapes.

The earphone also plays a fixed role, and can be adjusted up and down to match different ear positions. The sound quality of the headphones is unexpected. It can provide a certain sound field when watching Blu-ray movies. The 5.1 virtual channel (VPT) is not completely useless, but if you adjust to movies, music and other modes, you will feel guilty. The intermediate frequency is weaken.

Sony HMZ-T1 processor unit is a not too big black metal box, it is responsible for providing power, HDMI signal input processing and head-mounted signal output, the front is black polished plastic, with indicator light, off state The red light turns green when turned on.

The front part of the fuselage has a head-mounted output connector, and the back is an HDMI input and output interface. The HDMI output is mainly used to connect other display devices when the HMZ-T1 is not used (it is not possible to output signals simultaneously with the headset). It can be seen that Sony's positioning of this device is still indoor, not portable. It is worth mentioning that this model is made in Japan, 15W rated power is very energy-efficient.

The interface of the output headset is a special specification. The processor unit not only undertakes converting the HDMI signal processing into the image and audio signals received by the headset, but also converts AC power to DC power to power the head-mounted display.

Wear: The process is more comfortable once worn

For the discussion of the Sony HMZ-T1 wearing problem has been a long time, users mainly on the wearing comfort (heavy weight), dioptres (wearing glasses can not use) and shading of these aspects are more questions, here the author one by one Make an interpretation.

Wearable comfort

First of all, the HMZ-T1 is still more complicated to wear, because the two displays to achieve the same angle and distance as the glasses (overlap to achieve 3D images), so wear on the coordination of several aspects to achieve. Let's take a look at the part of the support. The point of force of T1 is mainly the front forehead supporter and the lower end of the lower ring rubber adjustment ring, as long as the adjustment to the appropriate length will not appear heavy pressure oppression, even girls Do not feel struggling.

After wearing the monitor, you need to adjust the interpupillary distance, which is adjusted according to the distance between the two eyes, until the two screens completely overlap, two glasses can not see the ghosting.

After the above two steps, almost all of Xiaobian's colleagues at the time of the trial showed no pressure. It was still acceptable to wear one or two hours.

Diopter adjustment problems

Here Xiaobian directly said it, T1 itself does not diopter adjustment, which may be related to the complex structure of the lens, there is no space to plug the adjustable lens.

What about a friend who wears glasses? There is only one answer, that is, looking at the lens with glasses. The HMZ-T1 reserves enough space between the lens and the glasses to lay down an ordinary pair of glasses. Therefore, this method is physically feasible.

Although the diopter problem can be solved through glasses, according to the colleague who wears the glasses, the lens will react with the light refracted by the lens. Even if the ambient light is dark enough, some light interference will still occur due to the brightness of the screen itself. If there is a phenomenon in which the pictures do not coincide, but you are not nearsighted or wearing glasses, you can only adjust them by adjusting the way you wear them, such as moving the forehead supporter up and down, adjusting the angle of the glasses and the screen, and so on.

The problem of shading

The shading of the HMZ-T1 is of course very important, and the lower shading plate fittings are also provided, so that the light below can be better shielded. However, due to the need of the upper part and the glasses to keep a little distance, the light will still pass through the gap, but the impact on the viewing is not too large, and it is acceptable.

Therefore, it is advisable to use T1 in an environment where the light is not too bright, otherwise the strong light leaking from above will destroy the interest of watching movies.

Menu: Simple operation

T1 on the menu is very simple, only the information, line of sight adjustment, 3D picture, display, sound and general settings these options.

Among them, there are many adjustment parameters for picture quality, which can adjust the color temperature and HDMI black signals. There are also several noise reduction options. It seems that the signal is re-input to the 3-meter connection and the smaller processor unit. It is easy to cause noise problems.

In addition, the blue decorative light of the head-mounted display can be turned on or off, and a long-time viewing warning of 3 hours is built in. T1 is indeed not a display device suitable for long-time viewing.

Image quality: excellent image quality in advance to enjoy the OLED screen

Here again, we need to introduce the display part of the T1, which consists of two 0.7-inch-sized OLED panels (1280×720 resolution). These OLED panels are entirely manufactured by Sony and are different from the mobile phone tablet on the market. The Samsung AMOLED screen used continues Sony's consistent tuning of color reproduction. Here, we must add that this OLED panel is produced in the form of white OLED+ color filter, which is lower in production difficulty than the sub-coated OLED (Samsung uses the sub-coating type), but do not forget that this is a 0.7. An inch screen, up to 1788 ppi (in the absence of enlarged screen), the production process is still very high.

In addition, the use of a lens allows a 0.7-inch screen to be enlarged to a size that the human eye can recognize. However, due to the relationship of the lenses, the relationship between the eyes and the screen is demanding, and both glasses must be adjusted in place to achieve good results. The quality of performance. Some netizens are concerned that head-mounted display affects vision. Xiaobian editors hold the same opinion. The close observation of the light source definitely has an adverse effect on eyesight; and Sony officials also stated in the instructions that the device is suitable for use by people over 15 years of age, and A 3-hour viewing warning is set in the machine. The power is automatically turned off after a maximum of 6 hours, which explains the effect of this device on eyesight.

Looking at the TV market, there is not yet a large-size OLED TV in the market, and the price of a 55-inch OLED TV to be listed by Samsung and LG is as high as 50,000 yuan. Obviously, the HMZ-T1 is priced at less than 6,000 yuan. Still a very reliable display device. Since the OLED screen is a self-illuminating principle, it is theoretically possible to realize a full black screen, and therefore has almost perfect performance in terms of contrast, black level performance, dynamic picture, color reproduction, and the like. Here you may want to use the color cast of Samsung's AMOLED mobile phone screen to refute me, but in the color performance Sony HMZ-T1 and Samsung's OLED screen is really different, plus a dedicated processor unit, pass the following Blu-ray test disc After the test, there are not many places where the author must be picky. At most, only in a few cases is there a shortage of critical resolution.

In the image quality test, the Sony HMZ-T1 has obvious gray-level stratification, and the control of the black level is also very good. Even the dark part of the picture can be clearly expressed, and there will be no problem of the LCD being too bright or too dark. However, in the noise control T1 is slightly weaker, some noise will be generated in some dark parts of the screen (inconsistent with the real shot, real shot on the camera with high ISO noise).

In addition, HMZ-T1 continues Sony's consistent style in the restoration of colors. It is not the kind of overly gorgeous effect we see on Korean OLED TVs. The color is full and there are no over-glare or overflow problems. Green, red, and other colors are also excellent. In addition, the performance of the dynamic picture can be very perfect, but unfortunately limited shooting equipment can not be shown. More real shots, you can continue to understand this article.

3D picture: Winning TV mainstream 3D technology

Playing 3D pictures is a big killing move for Sony HMZ-T1. The two OLEDs are all born for a 3D experience. Everyone may know that the 3D scene is generated by the left and right eyes seeing different images, while the T1 is directly equipped with two screens, contrasting the loss of resolution of polarized 3D and loss of the number of active shutter 3D frame has inherent advantages. Unfortunately, T1 does not support 2D to 3D, so it has limitations on 3D sources.

Below the author in the same 3D screen shot under the left and right eye of the screen, so that we can better understand the HMZ-T1 3D picture advantages. (The above figure shows the left eye, and the figure below shows the right eye)

It can be seen that the two screens of HMZ-T1 display different screens respectively, there is no crosstalk phenomenon during the viewing process, the brightness is not lost, the effect of the depth of field is obvious, and it can be said that the most ideal 3D screen that the author has seen, It is no exaggeration to say that the effects of high-end flat-panel TVs have been exceeded in 3D.

Blu-ray full HD movie screen real shot

Playing Blu-Ray Full HD video is a necessary step for every TV evaluation. This time, the small series also tested the Blu-ray player connected to HMZ-T1 with HDMI cable, and selected “Microscopic World” and “bottomless hole” for testing. From "Microcosm", it can be seen that HMZ-T1 does not overflow with the red and green colors, and the reduction of color is excellent. It can be seen that the quality of OLED screens should not be underestimated.

The color, dynamics, contrast, black level and other picture performance, Sony HMZ-T1 showed a very high quality, in addition to the short board 1280 × 720 resolution, the quality of the performance did not have too much picky place.

Blu-ray player connection

Because the Sony HMZ-T1 device is compact, it is much more convenient to connect than ordinary flat-panel TVs, and therefore it is tested for connection with various devices. In fact, as long as the device supports HDMI output. First of all, of course, is the Blu-ray player connection, this method provides the most current, high-quality 3D film source, of course, the quality is also the most guaranteed. The sound quality of the headphones is unexpected. It can provide a certain sound field when watching Blu-ray movies. The 5.1 virtual channel (VPT) is not completely useless, but if you adjust to movies, music and other modes, you will feel guilty. The intermediate frequency is weaken.

The head-mounted display brings an immersive viewing experience, but it is not as big as it seems in size. Most colleagues feel that the screen size is roughly equivalent to a flat-screen TV within 46 inches and a feeling larger than 42 inches, but due to the lens relationship The viewing experience more closely resembles the feeling of watching movies in a small movie theater in the middle of a row. The visual impact is general.

Computer connection

Connecting to a computer should be one of the most frequent choices for users who will purchase HMZ-T1. The author's Macbook PRO can provide T1 to 720p through the thunderbolt interface. Used to watch online video, SD, HD video has a very good viewing experience.

However, if it is used for office work, it will be a bit difficult, T1 is not suitable for each word is clearly displayed on the screen, look for a long time will be easy to dizziness.

Mobile phone MHL output

For the tiny T1, it's also worth checking out the phone's output HDMI signal. The author tried to use Meizu MX to connect to HMZ-T1, of course, there is no problem, but the operation of the smart phone is not so convenient when the eyes are covered.

The following still has MX output 720p of the real shot screen, for resolution less than Full HD T1, the phone output signal has been able to achieve excellent quality performance.

Price analysis

At present, HMZ-T1 is sold at Sony's official website at a price of 5,999 yuan, and Xbao's price is about 5,500 yuan. It is still relatively expensive for a display device that offers the highest definition SD screens, and it does not have the ability to share screens. The audience is much smaller. After all, the price of foreign brands 46-inch 3D TVs is about 6,000 yuan, but also provides full-HD picture quality and family viewing needs.

Therefore, here and we can easily see the difference between flat-panel TVs and T1 positioning, T1 is more suitable for those who have a high pursuit of 3D images, there is a demand for exclusive images or extreme film lovers. If you often like to watch a movie, then HMZ-T1 can give you a near-perfect viewing experience. And if you plan to travel to Hong Kong in the near future, HMZ-T1 will be a good choice. Its price in Hong Kong is 5,980 Hong Kong dollars (approximately 4,914 yuan). This price is much more reasonable.

Evaluation Room Summary

Editor's summary: After a detailed trial, Xiao Bian thinks that Sony HMZ-T1 has done a good job on the picture quality. OLED has brought beyond the high-end TV's picture quality performance. The 3D effect is also perfect. The fly in the ointment may be 1280. ×720 resolution. In addition, there is no obvious discomfort when wearing, a good support point makes the weight of 400g not burdensome, and the surrounding design brings an immersive viewing experience, ideal for watching movies. Although T1 has been regarded as outstanding in the viewing experience, Xiao Bian feels that there is still a lot of room for improvement. In addition to the resolution, it needs to be upgraded to full HD. It is also possible to study more on shading, and it is better to provide two separate eyes. The diopter adjustment is perfect if you can integrate the portable power supply and processing unit into the headset. However, it is hard to say whether this product can have an upgraded version. Xiaobian, of course, hopes that Sony can come up with a more complete product, because OLED's high-definition and immersive viewing experience are indeed two good things that people can't stop.

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