In 2011, Compal and Wistron LCD TV shipments challenged 10 million units.

According to Taiwan industry insiders, in 2011, Taiwan's ODM makers Compal Electronics and Wistron's LCD TV shipments will target 10 million units, including an estimated 7 million orders from Toshiba.

The source also said that in 2011, the two companies will receive orders from Toshiba up to 90%, and the rest are orders from Japanese manufacturer Pegatron Technology.

According to sources, Wistron is optimistic that the company's LCD TV market will show growth and will expand its production capacity in Guangdong, China. Some market observers also expect that in 2011, Wistron LCD TV shipments will reach 12-15 million units.

According to sources, in the first half of 2010, the sales of LCD TVs of Compal and Wistron were lower than they expected.

The source also said that in the first half of 2010, Wistron's LCD TV shipments have reached 1.8 million units, the company has adjusted its annual LCD TV shipment target, from the previous 550-6.6 million units to 500 - 6 million units.

Sources pointed out that in the first half of 2010, Compal LCD TV shipments reached only 2 million units, and achieving its annual shipment target of 6 million units will be challenging.


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 

8



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

 


Lead Free Piezoelectric Elements

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

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