Invention Grant
US08643570B2 Active matrix organic electroluminescence display and its gradation control method
有权
有源矩阵有机电致发光显示及其灰度控制方法
- Patent Title: Active matrix organic electroluminescence display and its gradation control method
- Patent Title (中): 有源矩阵有机电致发光显示及其灰度控制方法
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Application No.: US12145673Application Date: 2008-06-25
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Publication No.: US08643570B2Publication Date: 2014-02-04
- Inventor: Kaoru Okamoto , Tadahiko Hirai , Jun Sumioka
- Applicant: Kaoru Okamoto , Tadahiko Hirai , Jun Sumioka
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2007-172457 20070629
- Main IPC: G09G3/30
- IPC: G09G3/30

Abstract:
An active matrix organic electroluminescence(EL) display comprises plural selection and data lines mutually crossed, and a pixel circuit connected to the selection and data lines and having switching devices, a storage capacitor and an organic EL device. In a part of a period that the pixel circuit connected to the selection line is being selected, an applied first data signal is held as a voltage at the storage capacitor of the selected pixel circuit. After the selection signal applying, a first current according to the held voltage is supplied to the organic EL device, and this emits light at luminance according to the first current. In another part of the period, a second current according to an applied second data signal is supplied to the organic EL device of the selected pixel circuit, and this emits light at luminance according to the second current.
Public/Granted literature
- US20090002281A1 ACTIVE MATRIX ORGANIC ELECTROLUMINESCENCE DISPLAY AND ITS GRADATION CONTROL METHOD Public/Granted day:2009-01-01
Information query
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