Invention Application
US20100045650A1 ACTIVE MATRIX DISPLAY DEVICE WITH OPTICAL FEEDBACK AND DRIVING METHOD THEREOF
审中-公开
具有光反馈的主动矩阵显示装置及其驱动方法
- Patent Title: ACTIVE MATRIX DISPLAY DEVICE WITH OPTICAL FEEDBACK AND DRIVING METHOD THEREOF
- Patent Title (中): 具有光反馈的主动矩阵显示装置及其驱动方法
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Application No.: US12515968Application Date: 2007-11-21
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Publication No.: US20100045650A1Publication Date: 2010-02-25
- Inventor: David Andrew Fish , Steven Charles Deane , Nicola Bramante
- Applicant: David Andrew Fish , Steven Charles Deane , Nicola Bramante
- Applicant Address: NL EINDHOVEN
- Assignee: KONINKLIJKE PHILIPS ELECTRONICS N.V.
- Current Assignee: KONINKLIJKE PHILIPS ELECTRONICS N.V.
- Current Assignee Address: NL EINDHOVEN
- Priority: EP06124869.6 20061128
- International Application: PCT/IB2007/054735 WO 20071121
- Main IPC: G09G5/00
- IPC: G09G5/00 ; G09G3/30
Abstract:
An active matrix display device comprises an array of display pixels, each pixel comprising a current-driven light emitting display element (2), a drive transistor (22) for driving a current through the display element (2) and a storage capacitor (30) for storing a voltage to be used for addressing the drive transistor (22). A discharge transistor (36) is used for discharging the storage capacitor (30) thereby to switch off the drive transistor in dependence on the light output of the display element (2). Reading circuitry (70) is used for monitoring the charge on a discharge capacitor (40), the pixel data is corrected in response to the reading circuitry measurements. This can extend the lifetime of the display.
Information query
