Invention Grant
- Patent Title: Organic light emitting display device, pixel circuit of the same and driving method thereof
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Application No.: US14480524Application Date: 2014-09-08
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Publication No.: US09805656B2Publication Date: 2017-10-31
- Inventor: Xiaoxu Hu , Li Zhang
- Applicant: Shanghai Tianma AM-OLED Co., Ltd. , Tianma Micro-Electronics Co., Ltd.
- Applicant Address: CN Shanghai CN Shenzhen
- Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.,TIANMA MICRO-ELECTRONICS CO., LTD.
- Current Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.,TIANMA MICRO-ELECTRONICS CO., LTD.
- Current Assignee Address: CN Shanghai CN Shenzhen
- Agency: Alston & Bird LLP
- Priority: CN201410166379 20140423
- Main IPC: G09G3/32
- IPC: G09G3/32 ; G09G3/3266 ; G09G3/3258 ; H01L27/32 ; G09G3/3233 ; G09G3/3291

Abstract:
An organic light emitting display device, a pixel circuit of the organic light emitting display device and a method of driving the same are disclosed. The pixel circuit comprises a driving transistor, a first transistor, a second transistor, a third transistor, a fourth transistor, a first capacitor, a second capacitor, a light emitting diode and a compensating diode. The degradation of the light emitting diode is compensated by the compensating diode. Since the degradation phenomena of the light emitting diode is compensated by the compensating diode, the light emitting diode is able to maintain an effective and normal brightness while using the same driving voltage, thereby ensuring higher display quality of images and scenes of the organic light emitting display device.
Public/Granted literature
- US20150310806A1 ORGANIC LIGHT EMITTING DISPLAY DEVICE, PIXEL CIRCUIT OF THE SAME AND DRIVING METHOD THEREOF Public/Granted day:2015-10-29
Information query
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