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Front Luminous Vacuum Fluorescent Display is a variation of the vacuum fluorescent display technology which offers improvements in the areas of visibility, viewing angle, operating temperature range, and life. This technology has been discussed since the invention of the conventional vacuum fluorescent display (VFD) because of its structural similarity to the CRT. Today, Front Luminous Vacuum Fluorescent Display (FLVFD) technology is becoming a production reality. Since July, 1980, the following areas have been studied and evaluated to bring FLVFD to the state of commercialization: (1) Design study and trial production (2) Development of the transmissive anode and wiring pattern forming technology (3) Development of the phosphor coating technique (4) Study of the visual recognition characteristics (5) Reliability evaluation

Trend in Vacuum Fluorescent Displays relates to the technological advances in the design and construction of VFD's, with emphasis on recent and state of the art technology. Current design criteria plus operation parameters are outlined. Additionally, market demands on the display sector are noted with sections on both the displays of the present and future.

The Graphic Front Luminous Vacuum Fluorescent Display (G-FLVFD) has been successfully developed and introduced to the market place. This G-FLVFD is the next generation of the matrix system employing a dual wire grid scanning system. By utilizing both front luminescence and the dual wire grid scanning system, high resolution is obtained having 320×240 pixels with a pixel pitch of 0.375mm. Near-term developments will include improved resolution, multi-colors and increased capacity.

The color Graphic Front Luminous Vacuum Fluorescent Display has been successfully manufactured and is currently being introduced to the market place. This color G-FLVFD is constructed by coating each individual phosphor, red, blue, and green, separately on an anode. A sequential line drive employing a modified dual wire grid scanning system is utilized. The display has an effective graphic area of 120mm × 90mm, and can display patterns in eight colors.