Transparent, dyed cooktop

A transparent, dyed cooktop with improved color display capability, comprising:

• a glass ceramic having high quartz mixed crystals as a predominant crystal phase, the glass ceramic not containing chemical refining agents selected from the group consisting of arsenic oxide, antimony oxide, and combinations thereof except for unavoidable trace amounts, the glass ceramic having a transmission value of greater than 0.1% in a visible region of light in an entire wavelength region greater than 450 nm, a light transmission in the visible region of 0.8 to 5%, and a transmission value in an infrared region at 1600 nm from 45 to 85%;
• and
• a display apparatus having a display device configured to indicate a different operating condition with a feature selected from the group consisting of a color, a symbol, and combinations thereof.

A method for displaying an operating state of a cooktop, comprising illuminating a plurality of display devices to display different colors and/or symbols representative of a plurality of predetermined operating conditions.

The method according to 59, wherein the plurality of predetermined operating conditions comprises a malfunction condition and the plurality of display devices display a red color and/or a green color.