Teletext Art vs Test Card
テレテキスト・アート / テストパターン
Teletext Art comes from Lettering and Test Card from Broadcast Design. Both are read here as style. They are reached for with some of the same intent, which is where they get confused.
Teletext Art
Screen art made inside broadcast text, a mosaic of 40 by 24 characters in eight fixed colors. The extreme abstraction of Ceefax weather maps and news pages is being revived now as a classic of constraint.
Test Card
The calibration image broadcast during setup and downtime. Color bars, grids, circles and skin-tone references answered an engineering necessity, yet they became a public geometry lodged in a generation's memory.
| Teletext Art | Test Card | |
|---|---|---|
| Era | 1974–2012 / revival | 1934– |
| Family | Lettering | Broadcast Design |
| Kind | Style | Style |
| Cues | Eight-color mosaic / The 40x24 frame / Pseudo-curves from blocks / The look of broadcast infrastructure | Color bars / Concentric circles and grids / A skin-tone reference image / Waveform test patterns |
| Best used for | Moving announcement screens for music or shows that sell constraint · Stream backdrops and looping standby screens before a show starts | Checking equipment or a display quickly by eye without instruments · Standby screens that work as calibration and as decoration at once |
| Type | One monospaced face only, hierarchy from double-height headings | Minimal monospaced lettering carrying only a name and a value |
| Composition | Everything inside forty columns and twenty four rows, on the grid | Circles placed to read distortion, grids placed to read linearity |
| Material | Eight-color block mosaic, dithering faking intermediate tones | Primary bars and a neutral step wedge, no intermediate colors |
| Caution | Raising the resolution to smooth the drawing removes the necessity behind the coarseness and leaves a merely retro-looking picture. | Borrowing only the nostalgia and distorting the circles and grids until the image can no longer measure anything at all. |