Separate browser-delivered frame cadence from visual observations such as trailing, uniformity or gamma match.
IP-DSP-01 / PIXELS / FRAME TIME / COLOR
Screen Uniformity and Black Level Test
Inspect dark, middle and light gray fields plus near-black and near-white steps.
The screen shows clouding, tint, edge bleed or dirty-screen effect.
This focused entry uses the shared Display protocol. The measurement logic and Evidence version remain identical to the complete lab.
Remove the easiest false alarms first.
01
Set browser zoom to 100%, keep the tab visible and close animated or high-load windows.
02
Confirm the operating-system refresh, HDR and scaling settings before comparing results.
03
Change only one display setting per run and keep room light stable for visual references.
Run one repeatable protocol.
- 01
Control room light and allow the panel to warm.
- 02
Inspect three gray fields from the normal position.
- 03
Compare near-black and near-white steps without changing brightness.
Evidence the result should expose.
DIRECT / INFERREDGray fields
DIRECT / INFERREDNear-black steps
DIRECT / INFERREDNear-white steps
DIRECT / INFERREDVisual notes
Separate observed, review and inconclusive.
Repeat long-frame or visual artifacts after checking zoom, power mode, duplicated displays and the selected monitor mode.
A browser cannot certify panel response time, PWM, peak brightness, gamut volume or calibrated gamma without external instruments.
Start with the likely path, then retest.
01
Panel illumination
02
Viewing angle
03
Local dimming
04
Room reflection