Teletext-Tools 764 — Green Screen

PURE GREEN FULLSCREEN

P764

Press START for a totally green screen. No text. No UI.

Exit: press ESC (or tap/click screen).

CONTROLS

764

START GREEN SCREEN

START shows pure green inside the screen.
FULLSCREEN attempts true fullscreen green.
Tip: green is great for spotting uniformity and tint.

STATUS

READY

ESC exits fullscreen (browser) and returns to tool.
Tap the green screen to exit quickly.
Use with: 763 red + 765 blue.

Quick jump: 763 Red Screen • 765 Blue Screen • 767 Dead Pixel Test

1) Press START (pure green appears)

2) Optional: press FULLSCREEN first

3) Exit: ESC or tap/click screen

Uniformity: shading or “dirty screen” effect

Tint: areas that look yellow/blue-green

Stuck pixels: confirm across RGB pages

Photosensitive users: avoid rapid switching.

Heat: phones can warm up at high brightness.

OLED: don’t leave static bright screens for hours.

Is it true green? yes — overlay is #00ff00.

Looks different? colour profiles can affect perception.

Seeing blotches? could be panel uniformity.

Dead pixels? confirm on 763 and 765.

Fullscreen blocked? browser policy.

Try again after a direct tap, or use START only.

Exit: ESC (desktop) or tap (mobile).

Best practice: cycle red → green → blue to confirm.

If a pixel stays dark: it may be dead.

Solid green makes subtle brightness patches easier to notice.

It’s especially useful for spotting “dirty screen” effect on TVs and monitors.

Exit instantly with ESC (or tap), and avoid long max-brightness runs.

761 Black • 762 White • 763 Red • 765 Blue

766 Gradient Test • 769 Banding Test

green screen • fullscreen green • dead pixel test

screen uniformity • dirty screen effect • rgb display test