Yuhai piezo materials include : hard piezo material, soft piezo
material and lead free piezo material
Soft piezo
material exhibits: larger piezoelectric constants, higher permittivity, larger
dielectric constants, higher dielectric losses, larger electromechanical
coupling factors, low mechanical quality factors, a lower coercive field, poor
linearity, and is easier to depolarize. The ideal application of soft piezo materials is sensing needs. Yuhai soft
pizeo materials are PZT-5, PZT-5H, PSnN-5 and PLiS-51.
Hard piezo
material exhibits: smaller piezoelectric constants, lower permittivity, smaller
dielectric constants, lower dielectric losses, smaller electromechanical
coupling factors, high mechanical quality factors, a higher coercive field,
better linearity, and is harder to depolarize. The ideal application of hard piezo materials is high power transducer needs. Yuhai hard pizeo materials are PZT-4, PZT-8, PCrN-4 and PBaS-4.
Yuhai company developped lead free piezo material BaTiO3 and apply for the Chinese Patent in 2011, to meet the needs of environmental protection in today's society.
Piezoelectric ceramic material
Properties and Classification
General description of material properties
Material Code
Properties
Application
Soft PZT ceramic
PZT-51
Characteristics:
larger piezoelectric constants, higher permittivity, larger dielectric
constants, higher dielectric losses, larger electromechanical coupling
factors, low mechanical quality factors, a lower coercive field, poor
linearity, and is easier to depolarize.
low-power ultrasonic transducers
PZT-52
low-frequency sound transducers
PZT-53
applications with high g coefficient, for example,
PZT-5H
microphones,vibration pickups with preamplifier
PLiS-51
low-frequency vibration measurements
PMgN-51
Hydrophones, transducers in medical diagnostics
PSnN-5
Actuators
Hard PZT ceramic
PZT-41
Characteristics: smaller
piezoelectric constants, lower permittivity, smaller dielectric
constants, lower dielectric losses, smaller electromechanical coupling
factors, high mechanical quality factors, a higher coercive field,
better linearity, and is harder to depolarize.
PZT-42
High-power acoustic applications
PZT-43
Hydroacoustics, sonar technology
PZT-82
piezomotor
PCrN-4
PBaS-4
Lead free piezo ceramic
BaTiO3
Characteristics: Low density, low curie temperature, lead free.
Ultrasonic transducers suitable for low-temperature underwater, for example ultrasonic transducer in fishfinder
Piezoelectric Material,Piezo Ceramic Element,Piezo Electric Cylinder ,Piezo Sphere Zibo Yuhai Electronic Ceramic Co., Ltd. , https://www.yhpiezo.com
On August 10, 2016, the industry recognized the "king of picture quality" - Sony Z9D released, Sony senior TV development engineer Mr. Ogura Ogura will proudly say "We know everything about TV", today, Z9D from In terms of product design, audiovisual experience, user word-of-mouth, and sales performance, Mr. Ogura only said “unbelievable truthâ€. The status of the Z9D “Romance King†that has been listed for nearly one year remains untouchable. 
â— Sony's "engineer culture" to create the strongest surface TV Sony Pictures Products President, Sony's Senior Executive Vice President Takagi Takashi proud of the Sony Z9D and OLED A1 great success, and behind the pride can not be separated from the hard work of many Sony engineers Work hard to build the strongest TV products in the industry. Mr. Gao Qiaoyang, president of Sony (China) Co., Ltd., stated that image quality, sound quality and design are important reasons why users like and choose Sony TV. As a result, the following three great God "teachers" all appeared.
Mr. Ikawa Naoki, Quality Engineer, Sony Vision Products Co., Ltd.
Mr. Yoshioka Hiroshi, Sound Engineer, Sony Vision Products Co., Ltd.
Mr. Yokota Hiroaki, designer of Sony Creative Center
Back to the beginning of the article, the author said that "Sony is the teacher of all TV media people." Because Sony has "dry goods," Sony will tell us carefully why we use this technology. What kind of technology is there? Advantages, engineer's professional explanations and comparative measurement, TV media people also learned a lot of relevant knowledge at the same time, so Sony is the teacher of all television media people, the world alone. The rest of the TV brands, invariably changing the concept of law-stealing consumers, are fools.
11 years of research and development: Sony OLED A1 was a big success ◠Sony's 11-year OLED technology precipitation - self-luminous OLED also needs to control the light In February 2001, Sony developed a 13-inch 800 × 600 resolution OLED TV engineering machine, the past 11 years Sony has never stopped the development of OLED display technology. Sony introduced the world's first OLED TV (XEL-1) 10 years ago. The world's first 4K OLED TV was released at the CES 2013, and in 2015, it launched the professional OLED monitor BVM. -X300, Sony is undoubtedly the television industry's most experienced television brand in the development of OLED experience. The most OLED-experienced TV brands did not launch OLED TVs until 2017, simply because Sony insisted on its "responsibility to consumers" attitude. 
Why Sony's "unity of music and painting" cannot be copied?
◠Acoustic Surface Accomplishes the Great Vision of Sony's “Oneness in Music and Sound†Sony Music Products’ sound engineer Mr. Yoshioka Shigeo said when talking about OLED A1, “One voice and one picture†is the ultimate dream of Sony TV people. Several decades ago, Sony began to study the technical principles of the screen sound field. After many years of repeated testing, Sony can now maturely control this technology. Surprisingly, Sony's screen sound field technology was first applied to Sony's world's first OLED TV in 2007 (the Japanese version does not support it, and the European version supports it). 
The sound is transmitted through the solid vibration. The sound vibration will cause the picture to shake (especially the low-frequency sound vibration). The screen sound field technology sounds through the screen vibration. The Sony OLED A1 is designed with full consideration of durability and stability, and the sound of the vibrator The single vibrator was tuned to a two-group design. In addition, in order to avoid interference on the TV screen, Sony reasonably controls the heat sink, multi-touch, and DSP signal processor. 
Master of design: A picture shows a world â— Real design master - perfect design and "sound and picture in one" coexist Sony OLED A1 is a true sense of "sound and picture" TV, Sony Creative Center designer Yoshida Yoshiaki Mr. is behind the hero, consumers see is A1 stunning and unique design, Sony's top brand product design considerations are very detailed and comprehensive, will never design for design, although OLED A1 design is so lure people. 
◠Sony only cares about consumers – Z9D/OLED A1/X9300E upgrade supports 3 HDR formats Since 2016, HDR technology has become an undisputed hot spot in the TV field. However, most consumers do not know that there are many standards for HDR technology. The HDR standard supported by the Sony Z9D was Hybrid Log-Gamma (the Sony 4K HDR logo is this format). The British Broadcasting Corporation (BBC) and the Japan Broadcasting Association (NHK) respected the Hybrid Log-Gamma HDR standard. widely. 
Sony TV: Do not care about the opponent, nor the opponent ◠Master of Lights and Shadows – Sony is the only joint venture TV brand with dynamic area backlight technology. Sony OLED A1 is fully stocked, so is Sony LCD TV. Passive light-emitting LCD technology. The improved backlight system is The most effective way to improve the image quality is that the dynamic local area backlighting (Local Dimming) has been applied to some high-end LCD TVs. Unbelievably, Sony turned out to be the only joint-venture television brand to adopt this kind of technology. With this alone, the king of picture quality of LCD TVs has lost its significance. 
â— True ingenuity - Intensive adherence for decades In this impetuous era, words such as feelings, art, and artisans have long been "played bad," and the television field is full of innumerable consumer traps and marketing routines. Steal concept, low-level manufacturers are playing digital games, unfortunately, a large number of innocent consumers once again become "under the knife", really few TV manufacturers for consumers to consider. 
Sony TV, to do their own, do not care about competitors, there is no opponent.
Sony KD-77A1 detailed parameters 
Smart TV/box information can focus on smart TV information network sofa butler (http://), China's influential TV box and smart TV website, providing information, communication, TV boxes, smart TVs, smart TV software, etc. Answering questions.
Sony TV: Do not care about opponents, nor opponents
Sony is the teacher of all TV media people. To a certain extent, Sony is the teacher of all TV media people.
Sony's 100-inch Z9D TV Market Demands Supply in China
In March 2017, Sony OLED A1 TV China was first listed in the world. The price of conscience is enough to see Sony's attention to the Chinese market. Sure enough, since the listing of three months, Sony only rely on 55-inch and 65-inch two OLED A1 TV will occupy the entire Chinese OLED TV market 30% market share. In the Japanese market, OLED A1 has a market share or sales of more than 50%, and Sony, which has a television market of over US$2,500, ranks first in the United States. Globally, Sony’s “dominance†in the high-end TV market is fully revealed. Sony 77-inch OLED A1 China starts presale
On July 12, 2017, Sony officially released a 77-inch OLED A1 TV. Sony believes that Chinese consumers are more interested in large-size TVs, and 65-inch is hardly able to meet the needs of their larger home scenes. This part of high-end consumers is even more eager to Large-size TVs, 75 to 77 inches, are the most suitable size for this group of high-end people's home environment. The newly-released 77-inch OLED A1 is intended to provide multiple dimensions for consumers' different scenarios. The world's first OLED TV in 2007: Sony XEL-1
Xiao Bian has almost tested all OLED TVs on the market. The self-luminous feature means infinite contrast. The sense of layering and details of the picture should be an advantage. The reality is very different. The shadows of most OLED TVs are not ideal. A word from Mr. Nao Ichikawa, Sony's visual product engineer, made me suddenly clear: “Until 2017, Sony felt that it was possible to launch an OLED TV that exceeded the details of the liquid crystal display in the shadows.†Sony OLED A1 Pixel Control with X1 Advanced Chip
That's right, compared to all other OLED TVs, Sony OLED A1 used the actual survey application Mr. Irakawa Nakai. This product has greatly improved the details of the shadows and the image layering. Igawa Chuanzhi deeply researches the OLED discovery even though OLED display Technology possesses self-luminous properties, but it cannot be left alone (other OLED brands do). On the contrary, the self-illumination of OLEDs has made precise control of brightness very difficult. It is not necessary to display the correct color gradations and delicate colors. Easy to do. The left OLED TV transition rough / right OLED A1 transition natural delicate (proved that the self-luminous OLED still need to control the light)
To this end, Sony OLED A1 uses X1 Extreme 4K HDR Processor to achieve local light control, and Sony's unique "double image database" to fully tap the essence of HDR content, supplemented by a 14bit 4K HDR smooth gradient Technology, etc., was finally presented to consumers with near-perfect picture quality performance. Admittedly, the self-luminous nature of OLED display technology is a natural advantage. Sony's 11-year OLED R&D experience has shown that accurate control of OLED pixels by X1 Advanced Chips is very necessary and meaningful. Sony 11-inch (the world's first) and 77-inch OLED TV (the latest release) support the screen sound field technology
Mr. Yoshioka noted that only the OLED screen has the Acoustic Surface technology. Because the LCD needs to work with the backlight system, installing the vibrator on the LCD panel will affect the operation of the backlight system. Therefore, the LCD cannot achieve screen vibration and sound. The OLED panel has a natural advantage of self-luminescence and does not require the assistance of a backlight system to perfectly avoid the problems of the liquid crystal television. In other words, OLED provides the precondition for Sony to realize the "harmony of sound and picture". Acoustic Surface: Sony's decades of research + 200 attempts to improve
In order to achieve excellent sound quality performance, the sound of glass used by OLED A1 is also very challenging. Sony optimized it by adopting methods such as changing the audio characteristics and eliminating reverberation. After more than 200 attempts and improvements, the A1 series adopted the TV. Screen shock sounding screen sound field technology. This is why LG Display OLED TV panels offer similar technology, but other TV brands cannot reproduce. One sound and one picture, only one. Red Dot Award CEO Peter Zach, Sony Creative Center Tatsuo Takao, Tian Xinghong Chong, Yokota Yoshiaki, Review of Cheng Chung Yao
Mr. Yokota disclosed that when OLED A1 was designed, presenting the screen “to the real world†to the consumer was the first factor to be considered. A picture could represent a world and could not have any miscellaneous items, benefiting from new research and development. Acoustic Surface technology, OLED A1 achieve "no base + no speaker" shape design. Sony OLED A1 Product Design Drawing
During the Sony OLED A1 design process, whether it is self-luminous OLED screen or vibration sound processing are very difficult, large-size OLED TV power supply circuit board and heat sink will affect the thickness and durability of the fuselage, will also affect the stability of the vibration sound, Sony smartly designed the circuit board and woofer on the back bracket, ensuring the picture quality and durability of the OLED panel, and the sound purity of the panel vibrations was realized to ensure the maximum quality of the picture quality and sound quality. At the same time, OLED A1's ground-breaking design has also won recognition in the consumer market, and ultimately succeeded in the global market. Sony Z9D/OLED A1/X9400E/9300E fully supports all HDR formats
Sony's global sales of PS4 game consoles have exceeded 60 million units, and a large number of top-level game titles support the HDR10 format, while Blu-ray movies also use the HDR10 standard. Interestingly, in 2017, more and more Blu-ray publishers adopt the Dolby Vision HDR format. As a leading brand in the television field, in order to meet the demand for HDR content decoding in different scenarios, Sony announced in March 2017 that high-end televisions support full-format HDR technology and Sony's attitude of “only cares about consumers†has been applied again and again. Backlight Master Drive (Backlight Master Drive)
Sony Z9D's exclusive Backlight Master Drive (Backlight Master Drive) can be described as "nuclear weapons" (Sony has not disclosed the specific number of partitions for commercial confidentiality). Between pure and deep black market battlements is like an OLED TV. What is more, it is amazing. The X9300E launched by Sony in 2017 is equipped with the Slim Backlight Drive+, a flagship consumer-grade flagship market that offers consumers multiple choices. Sony has "no rival" in the high-end TV market
Fortunately, we still have Sony. We have been insisting on that precious heart for decades. Sony TV's experience in quality tuning for decades began to study the screen sound field technology decades ago. This decades-long adherence is the true sense of ingenuity. This insistence has finally won the global high-end consumer market. Respect and recognition.