Device for generating drive ramps for emissive devices
The infrared display device addresses dispersion issues in ramp propagation chains by generating voltage ramps with opposite directions and using correction tables, ensuring uniform pixel responses for accurate image display in high-temperature scenarios.
WO2026125258A1PCT designated stage Publication Date: 2026-06-18COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
- Filing Date
- 2025-12-08
- Publication Date
- 2026-06-18
Smart Images
Figure EP2025085888_18062026_PF_FP_ABST
Abstract
The invention relates to a device for displaying a scene, which comprises: • - a plurality of pixels (1) arranged in a matrix (2); • - a ramp digital-to-analog converter (3); • - a plurality of electronic blocks (6); wherein the ramp digital-to-analog converter (3) is configured to generate a first voltage ramp (R1) and a second voltage ramp (R2) which have opposite directions of variation and meet at a peak value (Vref2), the peak value (Vref2) being determined as a function of the maximum dispersion encountered across the matrix during the propagation of the output voltage through the plurality of electronic blocks (6) and through the plurality of pixels (1).
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