公开(公告)号：US20250069551A1

公开(公告)日：2025-02-27

申请号：US18947363

申请日：2024-11-14

Applicant: Universal Display Corporation

Inventor： Michael HACK ,  Michael Stuart WEAVER ,  Nicholas J. THOMPSON ,  Michael O'CONNOR

IPC: G09G3/3233

Abstract: Embodiments of the disclosed subject matter provide a device that includes an organic light emitting device (OLED), and a drive circuit to control the operation of the OLED, comprising a response time accelerator thin film transistor (TFT) configured to short or reverse bias the OLED for a predetermined period of time during a frame time. Other embodiments include an OLED having a plurality of sub-pixels, where one or more of sub-pixels configured to emit light of at least a first color comprises a first emissive area and a second emissive area that are independently controllable, where the first emissive area is larger than the second emissive area. The controller is configured to control the second emissive area to have (i) a higher brightness, and/or (ii) a higher current density than the first emissive area for a first sub-pixel luminance level that is less than a maximum luminance.

公开(公告)号：US20230011754A1

公开(公告)日：2023-01-12

申请号：US17845125

申请日：2022-06-21

Applicant: Universal Display Corporation

Inventor： Michael HACK ,  Michael Stuart WEAVER ,  Nicholas J. THOMPSON ,  Michael O'CONNOR

IPC: G09G3/3233

Abstract: Embodiments of the disclosed subject matter provide a device that includes an organic light emitting device (OLED), and a drive circuit to control the operation of the OLED, comprising a response time accelerator thin film transistor (TFT) configured to short or reverse bias the OLED for a predetermined period of time during a frame time. Other embodiments include an OLED having a plurality of sub-pixels, where one or more of sub-pixels configured to emit light of at least a first color comprises a first emissive area and a second emissive area that are independently controllable, where the first emissive area is larger than the second emissive area. The controller is configured to control the second emissive area to have (i) a higher brightness, and/or (ii) a higher current density than the first emissive area for a first sub-pixel luminance level that is less than a maximum luminance.