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A Vacuum Fluorescent Display (VFD's) is widely accepted as a superior display device because of its impressive self-luminance and high reliability. VFD's for automotive applications have been used to convert signals to visual digital information. Now, in addition to digital style images, analog image displays are being requested for a wider choice of style. Furthermore, bright and clear display appearance and additional function are feasible by adopting the VFD technology to a pointer display application like mechanical speedometers or tachometers. This paper discusses the development of the large scale analog pointer image VFD for automotive use.

Vacuum Fluorescent Displays (VFD's) for automotive Electronic Instrument Panels (EIP's) have been advancing in recent trends toward large scale systems. These systems offer the attractive appearance of large graphics, the flexibility of both analog and digital style images, and the cost reduction advantages of simpler power supplies, driving circuitry, and assembly procedures. A VFD consisting of all of the primary gages of an EIP was developed and mass produced. This paper will discuss this full size integrated cluster panel.