Emissive optoelectronic device with improved color conversion rate and manufacturing process

FR3166031A1Active Publication Date: 2026-03-06COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
View PDF 4 Cites 0 Cited by

Patent Information

Application Number
FR2024009293
Authority / Receiving Office
FR · FR
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-08-30
Publication Date
2026-03-06
Estimated Expiration
2044-08-30
Patent Text Reader

Abstract

The invention relates to a light-conversion optoelectronic device comprising light-emitting diodes (LEDs) and conversion pads (40). Transparent, conductive spacer portions (23) are located between the reflective portion (22) and the lower conductive portion (31) of the conversion-only light pixels (Pxac) or of the non-conversion-only light pixels (Pxsc). Furthermore, the thickness (e31.opt) of the lower conductive portions (31) and the thickness (e23.opt) of the spacer portions (23) are predefined to maximize: in non-conversion-only light pixels (Pxsc), the extraction rate of emitted light from the LED; and in conversion-only light pixels (Pxac), the coupling rate of the light emitted by the active portion (32) with optical modes supported in the conversion portion (40). Figure for the abstract: Fig. 2A
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Organic light-emitting display substrate, display device and manufacturing method thereof

    CN109103236A

  • Display apparatus and method of manufacturing the same

    EP3836212B1

  • Quantum dot LED structure with enhanced emission

    US20200161585A1

  • Display apparatus

    US20230215856A1