Harmony between metal and transparency is achieved to showcase a premium, minimal image. Panel development and design were simultaneously carried out for the ES6900. The panel’s exterior was made into an important element of the product design, rather than using it simply as a part, thus simplifying the manufacturing process. The surface was processed in a way that ensures higher exterior quality and sophistication. Harmony between the sophisticated front metal bezel and the metallic sides makes the product look like a single large piece of processed metal. The product thus provides new value to users.