• Patent Title: Pixel Sensing Device and Method of Organic Light Emitting Display Device
  • Application No.: US16688488
    Application Date: 2019-11-19
  • Publication No.: US20200175925A1
    Publication Date: 2020-06-04
  • Inventor: Sanghoon LEEHyunwook KIMSangyun KIM
  • Applicant: LG Display Co., Ltd.
  • Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@37862231
  • Main IPC: G09G3/3258
  • IPC: G09G3/3258
Pixel Sensing Device and Method of Organic Light Emitting Display Device
Abstract:
The present disclosure relates to a display device and sensing method. A display device includes a plurality of pixels. At least one of the pixels includes an organic light emtting diode (OLED) and a driving transistor. The driving transistor is connected in series with the OLED with a node between the OLED and the driving transistor. During a programming period the driving transistor is turned off and the OLED is turned on. During a discharging period the driving transistor is turned off and a voltage charged on the node during the programming period is discharged through the OLED. During a sensing period the OLED is turned off and the driving transistor is turned on to generate a pixel current to be sensed.
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