公开(公告)号：DE112018000663T5

公开(公告)日：2019-10-24

申请号：DE112018000663

申请日：2018-03-14

Applicant: APPLE INC

Inventor： LIN CHIN-WEI ,  ONO SHINYA ,  GUPTA VASUDHA

IPC: G09G3/3233 ,  G09G3/3275

Abstract: Ein Display kann ein Array organischer Leuchtdiodendisplay-Pixel mit Transistoren einschließen, die durch Schwellenspannungen gekennzeichnet sind, die Transistorschwankungen unterliegen. Eine Kompensationsschaltung kann verwendet werden, um eine Transistorschwellenwertspannung für ein Pixel zu messen. Die Schwellenspannung kann abgetastet werden, indem das Pixel gesteuert wird, um die Schwellenspannung auf einen Kondensator an dem Pixel abzutasten. Das Pixel schließt mindestens einen Halbleiter-Oxidtransistor, Siliziumtransistoren und eine Leuchtdiode ein. Die Diode kann mit einer Datenleitung gekoppelt sein, die sowohl für Datenladeals auch Kompensationserfassungsvorgänge verwendet werden kann. Rückstellvorgänge können nach der Datenprogrammierung und vor der Emission ausgeführt werden, um die Anodenspannung für die Diode zurückzustellen.

公开(公告)号：AU2019284083B2

公开(公告)日：2020-12-10

申请号：AU2019284083

申请日：2019-12-24

Applicant: APPLE INC

Inventor： LIN CHIN-WEI ,  ONO SHINYA ,  LEE ZINO ,  WANG YUN ,  GUI FAN

IPC: H05B45/00 ,  G09G3/3208 ,  H01L27/32

Abstract: Abstract A display pixel is provided that is operable to support hybrid compensation scheme having both in-pixel threshold voltage canceling and external threshold voltage compensation. The display may include multiple p-type silicon transistors with at least one n-type semiconducting-oxide transistor and one storage capacitor. An on-bias stress phase may be performed prior to a threshold voltage sampling and data programming phase to mitigate hysteresis and improve first frame response. In low refresh rate displays, a first additional on-bias stress operation can be performed separate from the threshold voltage sampling and data programming phase during a refresh frame and a second additional on-bias stress operation can be performed during a vertical blanking frame. The display pixel may be configured to receive an initialization voltage and an anode reset voltage, either of which can be dynamically tuned to match the stress of the first and second additional on-bias stress operations to minimize flicker. VDDEL Data EM(n) Teml 310 Cst Nodel Idata Node2 V Vs SCAN2(n) Noe 9 Tdrive Vd 314-2 r-Tox- -e -, inil SCAN1(n) Node3 -SCAN2(n-1) 314-1 Tem2 314-2' Nodje4 I Tini2 304 32-38 306 Vini

公开(公告)号：AU2019284083A1

公开(公告)日：2020-07-30

申请号：AU2019284083

申请日：2019-12-24

Applicant: APPLE INC

Inventor： LIN CHIN-WEI ,  ONO SHINYA ,  LEE ZINO ,  WANG YUN ,  GUI FAN

IPC: H05B45/00 ,  G09G3/3208 ,  H01L27/32

Abstract: Abstract A display pixel is provided that is operable to support hybrid compensation scheme having both in-pixel threshold voltage canceling and external threshold voltage compensation. The display may include multiple p-type silicon transistors with at least one n-type semiconducting-oxide transistor and one storage capacitor. An on-bias stress phase may be performed prior to a threshold voltage sampling and data programming phase to mitigate hysteresis and improve first frame response. In low refresh rate displays, a first additional on-bias stress operation can be performed separate from the threshold voltage sampling and data programming phase during a refresh frame and a second additional on-bias stress operation can be performed during a vertical blanking frame. The display pixel may be configured to receive an initialization voltage and an anode reset voltage, either of which can be dynamically tuned to match the stress of the first and second additional on-bias stress operations to minimize flicker. VDDEL Data EM(n) Teml 310 Cst Nodel Idata Node2 V Vs SCAN2(n) Noe 9 Tdrive Vd 314-2 r-Tox- -e -, inil SCAN1(n) Node3 -SCAN2(n-1) 314-1 Tem2 314-2' Nodje4 I Tini2 304 32-38 306 Vini