Masami Sonda

Title: Masami Sonda and Liquid-Crystal Display Alignment Technology.

Introduction

Masami Sonda is an inventor associated with Yokohama, Japan, and Victor Company of Japan, Limited. Her recorded work includes 2 patents concerning the production of alignment layers for liquid-crystal displays.

Latest Patents

The supplied patent information describes an apparatus and method for producing an alignment layer used in liquid-crystal displays. The process heats substrates in a first load-lock chamber, then uses vacuum deposition to apply evaporated silicon oxide particles to at least one substrate at an angle of 45 to 60 degrees from the surface normal. The substrates move through a deposition chamber on trays, either intermittently or sequentially, and are cooled in a second load-lock chamber.

The description also specifies conditions for controlling deposition uniformity, based on the geometry of the substrate and evaporation source. It notes that the alignment layer may be deposited at an angle between 3 and 10 degrees. The supplied patent list repeats this same invention description, so it is presented here as one distinct technology rather than as two separate inventions.

Career Highlights

Sonda’s listed patent work focuses on manufacturing processes for liquid-crystal display components. The described method combines substrate heating, angled silicon oxide deposition, and controlled cooling in a staged production system.

Collaborations

The supplied information identifies Masanobu Shigeta and Takashi Moroboshi as Sonda’s coworkers. It does not specify their roles in the patent or the invention.

Conclusion

Masami Sonda’s recorded invention work centers on a controlled vacuum-deposition process for forming alignment layers in liquid-crystal displays.