AMOLED Driving Transistor Pre-Reset Control for Motion Blur Reduction
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Solution Overview
Problem
Active-matrix organic light-emitting diodes (AMOLEDs) experience motion blur when operated at high speeds, which is not effectively addressed by existing technologies.
Innovation Solution
A control method for a light-emitting diode apparatus that involves applying a pre-reset voltage to the control terminal of a driving transistor, followed by a reset voltage and compensation, to increase the voltage difference between the control and first terminals, thereby reducing motion blur. This method includes specific stages such as pre-resetting, resetting, and compensation, utilizing switches and a charge storage device to manage voltage levels and control signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the AMOLED is operated at a high speed, then the productivity is improved, but motion blur is generated in the display
Solution Approach 1:
The patent applies a pre-reset voltage to the control terminal before the main reset operation. This preliminary action prepares the transistor by increasing the voltage difference between the control terminal and first terminal, ensuring the transistor is properly reset even at high operating speeds, thereby preventing motion blur while maintaining high productivity
Solution Approach 2:
The pre-reset voltage creates a preliminary counter-action by increasing the voltage difference in opposition to the potential charge accumulation that causes motion blur. This preemptive measure counteracts the harmful effect before it can manifest, allowing high-speed operation without motion blur
Data Source
AI summary
A light-emitting diode apparatus and a control method of the light-emitting diode apparatus are provided. The control method includes: applying a pre-reset voltage to a control terminal of a driving transistor of the light-emitting diode apparatus in a pre-resetting stage to pre-reset the control terminal of the driving transistor; resetting the control terminal of the driving transistor of the light-emitting diode apparatus by using a reset voltage source in a first resetting stage; compensating the control terminal of the driving transistor to a compensation voltage in a compensation stage; and providing, by the driving transistor, a driving current in a light emission stage to drive a light-emitting diode of the light-emitting diode apparatus to emit light.