Ryuichi Murai

51.2: Invited Paper: Improvement of Luminous Efficiency Using New Structure in AC-PDPs

A new discharge cell structure that has many patterned, reed-shaped ITOs was developed. Use of this structure increases PDP discharge efficiency by 9% and decreases displacement power by 10%. This effect is the same as that of using a lower electric permittivity material for lower electric capacity.

42.3: New Cell Structure with Priming Cells and Driving Method for High Speed Addressing in AC-PDPs

We proposed a new cell structure with priming cells and a driving method for high speed addressing in AC-PDPs. An MgO layer is formed in the back plate of the priming cells to setup both the display cells and the priming cells. The statistical delay time of the address discharge was shortened to less than 20 ns by this technology.

42.4: Effect of Carbon Nanotubes in a PDP Back Plate on Addressing Discharge Time Lag

The effect of carbon nanotubes (CNTs) in a back plate of a plasma display panel (PDP) for reducing the addressing discharge time lag was investigated. Field enhancement with CNTs played a significant role in reducing the addressing discharge time lag.

LP-2: Late-News Poster: Home Base-Shaped Inner Magnetic Shield

An inner magnetic shield, which substantially improves the terrestrial magnetic characteristic, was developed for a CRT with a tensioned shadow mask. We proved that (1) the shape of the inner magnetic shield, (2) the joint resistance of each component, and (3) the material and tension of shadow mask all contributed to the magnetic characteristic. Based on our research, a ‘home base’-shaped inner magnetic shield was developed and the performance was improved and nearly equivalent conventional CRT with a press mask.

28.3: Projection CRT Electron Gun with High-Resistive-Layer Focus Lens

An electron gun for a projection CRT has been developed by using a high resistive layer formed on the inside wall of a glass tube as the main lens structure. In an effort to achieve an ultimate electron gun, (1) design technology (2) resistor material to meet the system requirement, and (3) precision machining technology, have been made. As a result, an electron gun with its main lens consisting of a high resistive film has been successfully developed. The CRT utilizing this electron gun which has the current neck diameter of 29.1 mm shows the following characteristics. 1 An electron gun achieved an effective electron lens diameter of 40 mm. 2 The beam spot diameter was reduced by 11%. 3 Magnetic permeability characteristics in high frequency range was improved 5 times.