With the LMK 7 camera and LMK DeMURA software, TechnoTeam introduces a new measurement approach to DeMura correction on today's fine-pitch OLED, µLED and LED displays. It combines APR for sub-pixel emitter registration, SPR for production-speed capture, and the patented µShaking method for Moiré suppression at sampling ratios optimized for production.
The workflow covers flat and slightly curved emitter surfaces alike — from OLED smartphone panels to curved automotive cluster and center information displays (CID) — because APR teaches the imaging geometry of the actual DUT, not an idealised flat one.
> At a glance
- APR — pure software; sub-pixel emitter registration on the sensor
- SPR — production-speed variant of APR; one luminance image per test input signal after teaching
- µShaking — optional on the LMK 7; TechnoTeam's patented method (US 12,387,297 B2) for Moiré suppression at low sampling ratios
> What is APR?
- Advanced Pixel Registration (APR) is TechnoTeam's software workflow for pixel-level luminance measurement.
> Single Shot Pixel Registration (SPR) — the production-speed variant
- On a production line the same display type is measured thousands of times, ILMD imaging conditions are stable, and each new DUT only shifts or rotates slightly. Single Shot Pixel Registration (SPR) exploits this stability: after a one-time teaching phase on the first panel of a batch, each subsequent DUT is registered and measured with one image capture per test input signal — the registration pattern is not re-taught for every panel.
> RELEVANT PRODUCTS:
- LMK 7-128 | 128 MP ILMD for In-Line DeMura
