What are the advantages and disadvantages of using a non-screen TV?

With the rapid development of smart TVs, a brand-new TV concept has emerged: the non-screen super TV. Faced with this new TV concept, I believe many users are not very understanding! So what is a screenless TV? What are the advantages and disadvantages of using LCD TVs? Xiaobian brings in-depth analysis of the non-screen TV to help users to better choose.

What is a screenless TV? No screen is also TV!

Non-screen TV refers to the use of projection technology to achieve the screen to put products such as white walls and other similar screen carriers. No screen TV gets rid of the limitations of traditional LCD TVs on the LCD screen, and the size of the screen can be freely adjusted, and the movement is also very convenient!


What are the types of non-screen TVs? What is the best place to use it?

There are also many types of non-screen TVs. According to different light sources and places of use, they can be divided into non-screen TVs with lasers, screenless TVs in the living room, and portable non-screen TVs.

Laser non-screen TV uses ultra-short-focus projection principle, equipped with a laser light source, the use of places for the home living room or conference room, from a cost perspective, the current solutions are mostly blue laser + phosphor laser display technology, brightness 3000- 4000 lumens.

The living room non-screen TV adopts the principle of ultra-short focus projection, equipped with high-pressure mercury lamp light source, and the use place is mostly home living room or conference room with a brightness of 2500-4000 lumens.

Portable non-screen TVs use LED light sources, which are generally telephoto and short-focus. They are mostly used for home bedroom, recreation room and rental rooms, with a brightness of 200-800 lumens.


What are the advantages and disadvantages of using a non-screen TV?

No screen TV advantages:

Protecting eyesight is even more powerful! The non-screen TV adopts the principle of optical diffuse reflection, which is soft and not dazzling in the presentation of the overall picture. Compared to the direct light of LCD TVs, non-screen TVs have better protection for people's eyes.

Large size large field of vision! Non-screen TVs typically start at 80 inches in size, while the main sizes used in home environments such as the living room are 100-120 inches, and the largest non-screen TVs can achieve 300 inches.

Low cost and low energy consumption! The cost of a 100-inch screenless TV is within 10,000 yuan and the power is between 100W and 400W. Traditional TV needs more than 500,000 yuan and the power is more than 1000W.

Small size and light weight! The size of a non-screen TV host usually does not exceed 50cm50cm30cm and the weight does not exceed 10Kg. The 100-inch traditional TV host has a volume of at least 220cm120cm5cm and a weight of 100Kg or more.

No screen TV disadvantages:

Non-screen TVs require a very high area of ​​projection, and the projection area needs to be flat and preferably white!

No screen TV can deliver a maximum of 180-inch screens, but such a large area of ​​projection can be achieved at a distance of about 5 meters. For many ordinary families, such a large projection area and a distance of five meters are not easily achieved!

What is a screenless TV? I believe that you should have in-depth understanding of the above introduction! However, what smart operation features do non-screen TVs have? What is the difference between LCD TVs? What are the advantages and disadvantages? Is this a problem that users want to understand in depth? Nowadays, many users are struggling between screenless TVs and LCD TVs, and do not know how to choose. Xiao Bian brings more in-depth introduction after the initial introduction of the non-screen TV, helping users to make the right choice!


What are the operational features of a non-screen TV? The three major operational features detailed analysis!

No screen TV built-in Android system!

The non-screen TV is equipped with an open operating system and can download and install third-party application software. The installation of video applications, game applications, and music applications for non-screen TVs can easily achieve corresponding operating functions and achieve more useful functions. !

No screen TV support WIFI function!

After the non-screen TV WIFI network, you can achieve online viewing of film and television drama resource needs, and you can also achieve web browsing and other operations! And can be the latest system updates, upgrades, allowing users to implement the latest operating system in time to experience the most intelligent use of operation!

No screen TV supports an external hard disk!

Non-screen TVs can use their media players to play hard drives that have already been downloaded, support mainstream HD video formats in the market, and can also add subtitles manually, which is very convenient.


What is the difference between a screenless TV and an LCD TV?

No screen TV does not require a screen as a carrier for the screen. A white wall can be used to deliver the screen. And there is no limit to the size of the screenless TV, support for projection screen 100 inches or more, and you can freely adjust the size of the screen, these are LCD TV can not be achieved!

However, from a technical point of view, compared with the price of non-screen TV and LCD TV products, compared to the mainstream of high-definition 4K LCD TVs, no screen TV is generally only 1080P, in the color performance, the details of the performance of the display without screen TV slightly less!

Non-screen TV has already begun to appear in the user community. What are the non-screen TVs? Hami H1 no screen TV, Haier Xiaoshuo UFO, BenQ i701JD, etc. are a good choice! Through the above Xiaobian introduction, I believe that all users have a certain understanding of the non-screen TV, you can according to their own needs to use a more accurate choice!

Lead Free Piezoelectric Elements


The Co-Al Co-doped Barium Titanate Lead-free Piezoelectric Ceramics was successfully developed by Yuhai company through repeated experiments. By Researching the influence of Co-Al Co-doping on the structure and properties of Barium Titanate-based piezoelectric ceramics, the formulation and preparation technology of Barium Titanate-based piezoelectric ceramics were optimized. Yuhai`s BaTiO3 was prepared by conventional solid-phase sintering method, with the piezoelectric constant d33 (>170pC/N), dielectric loss tgδ≤0.5% and mechanical coupling coefficient Kp≥0.34.

Barium titanate lead-free piezoelectric ceramics are important basic materials for the development of modern science and technology, which was widely used in the manufacture of ultrasonic transducers, underwater acoustic transducers, electroacoustic transducers, ceramic filters, ceramic transformers, ceramic frequency discriminators, high voltage generators, infrared detectors, surface acoustic wave devices, electro-optic devices, ignition and detonation devices, and piezoelectric gyroscope and so on.

Application: military, ocean, fishery, scientific research, mine detection, daily life and other fields.

China Patent of Yuhai company`s BaTiO3

Chinese Patent No.: ZL 2011 1 0126758.6

Name: Lead-free Barium Titanate Piezoelectric Material with Addition of Cobalt and Aluminum

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Lead free piezo material BaTiO3

Lead-free Material

Properties

BaTiO3

Dielectric Constant

ɛTr3

1260

Coupling factor

KP

0.34

K31

0.196

K33

0.43

Kt

0.32

Piezoelectric coefficient

d31

10-12m/v

-60

d33

10-12m/v

160

g31

10-3vm/n

-5.4

g33

10-3vm/n

14.3

Frequency coefficients

Np

3180

N1

2280

N3

Nt

2675

Elastic compliance coefficient

Se11

10-12m2/n

8.4

Machanical quality factor

Qm

1200

Dielectric loss factor

Tg δ

%

0.5

Density

ρ

g/cm3

5.6

Curie Temperature

Tc

°C

115

Young's modulus

YE11

<109N/m3

119

Poison Ratio

0.33


Piezo Element,Piezo Ceramic Elements,Piezoelectric Ceramic,Pzt Tubes

Zibo Yuhai Electronic Ceramic Co., Ltd. , https://www.yhpiezo.com