- Patent Title: Active matrix OLED display with normally-on thin-film transistors
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Application No.: US15345248Application Date: 2016-11-07
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Publication No.: US10068529B2Publication Date: 2018-09-04
- Inventor: Bahman Hekmatshoartabari , Ghavam G. Shahidi
- Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Tutunjian & Bitetto, P.C.
- Agent Louis J. Percello
- Main IPC: G09G3/32
- IPC: G09G3/32 ; G09G3/3258 ; H01L27/32 ; H01L29/80 ; G09G3/3233 ; H01L27/12 ; H01L29/16

Abstract:
A pixel circuit includes a first capacitor and diode stage connected to a gate of a first transistor and ground, which receives a select input. A data line is coupled to a first source/drain of the first transistor, and a second source/drain of the first transistor is coupled to a gate of a second transistor. The second transistor has a drain connected to a supply voltage and a source connected to a resistor. The resistor connects to an organic light emitting diode (OLED), which connects to the ground.
Public/Granted literature
- US20180130414A1 ACTIVE MATRIX OLED DISPLAY WITH NORMALLY-ON THIN-FILM TRANSISTORS Public/Granted day:2018-05-10
Information query
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