Molybdenum Coatings in TFT-LCD screens

Molybdenum coatings are the crucial components of the thin-film transistors, it is used in TFT-LCD screens. A thin-film transistor consists of a large number of thin layers that are applied and structured during a multilayer coating process. Up to four of the layers are produced from molybdenum. The sharpness of the final image and the speed with which it can be built on screen depends on the purity of our molybdenum.

LCD flat screen
LCD flat screen

Molybdenum has good adherence strength due to its extreme metallurgic properties. Molybdenum can only be used up to an operational temperature of 300°C.The surface becomes very absorbent through molybdenum coating and can be additionally sealed for underlying corrosion reasons.
Recommended coating strengths are 50 µm to 500 µm for molybdenum coatings. These can be made stronger at the request of the client.

Molybdenum coatings plant
Molybdenum coatings plant

Molybdenum coatings have a hardness of 60-66HRc depending on the coating method, they are perfect to manufacture wear-resistant coatings. Molybdenum is also ideally suited for bearing seats for waste salvation in maintenance. Molybdenum has better sealing properties than a hardened agent.
Molybdenum coating generates smoke and dust and therefore the work should be carried out by qualified to guarantee environmental and employment protection.
A molybdenum coating by wire flame spraying can be a high quality base coat. Subsequently Cr steel, bronze or ceramic can be applied.
The advantage of molybdenum coating also in comparison with welding is that the thermal exposure of the work piece can be disregarded and deformations can be excluded in large surfaces too. The disadvantage is that hollow spaces or difficult accessible places (recipients, undercuts, inner pipes etc.) cannot be treated with molybdenum coating.
Chipping work should be carried out by wet grinding and polishing.
These provide instantaneous control of the individual image dots (pixels) and consequently ensure particularly sharp image quality. Consequently, our material determines whether, and how brightly, any given area of the screen is illuminated.

Tiny metal particles are vaporized from the sputtering targets with the magnetron sputtering method and are then deposited as a thin film on the glass substrate.

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