OLED Array Substrate Dual Reset Voltage Lines
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Solution Overview
Problem
Existing OLED display panels face challenges in optimizing power consumption, response speed, accuracy, and display effect due to the use of a single reset voltage line for both pixel circuits and light-emitting devices, which affects the charging time and display performance.
Innovation Solution
The array substrate incorporates separate driving reset voltage and light-emitting reset voltage lines to independently control the reset processes, allowing for optimized voltage settings that improve display effect and response speed by thoroughly resetting the pixel circuit and keeping the light-emitting device in a non-emitting state with minimal power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single reset voltage line is used for both pixel circuits and light-emitting devices, then device complexity is reduced, but response speed and display effect deteriorate due to inability to independently optimize reset processes
Solution Approach 1:
The patent divides the single reset voltage line into two separate lines: a first reset voltage line coupled to the pixel circuit and a second reset voltage line coupled to the light-emitting device. This segmentation allows independent control and optimization of reset processes for each component, improving response speed without excessive complexity increase.
Solution Approach 2:
The patent applies different reset voltages to different parts of the system: a first reset voltage to the pixel circuit and a second reset voltage to the light-emitting device. This local quality approach enables tailored voltage settings for each component's specific requirements, optimizing overall performance.
2Ease of manufacture
If a single reset voltage line is used for both pixel circuits and light-emitting devices, then manufacturing process is simplified, but power consumption optimization and display effect deteriorate
Solution Approach 1:
By segmenting the reset voltage supply into separate lines for pixel circuits and light-emitting devices, the patent enables independent power management. This allows optimization of power consumption for each component based on its specific operational requirements.
Solution Approach 2:
The patent changes the voltage parameter by applying different reset voltages to different components. This parameter differentiation allows for optimized power consumption while maintaining ease of manufacture through standard circuit implementation techniques.
3Speed
If separate driving reset voltage and light-emitting reset voltage lines are used, then response speed and display effect improve, but device complexity increases
Solution Approach 1:
The patent implements segmentation of the reset voltage system into two independent lines, which improves response speed by allowing simultaneous and independent resetting of pixel circuits and light-emitting devices without interfering with each other's operation.
Solution Approach 2:
Each reset voltage line serves multiple functions: the first reset voltage line resets the pixel circuit while the second reset voltage line resets the light-emitting device. This multi-functionality approach justifies the increased complexity by demonstrating systematic benefits across the entire display system.
4Loss of time
If separate reset voltage lines are implemented, then charging time is reduced, but manufacturing complexity increases
Solution Approach 1:
By segmenting the reset voltage supply into separate lines, the patent enables parallel resetting operations that reduce charging time. The independent lines allow simultaneous voltage application to pixel circuits and light-emitting devices without mutual interference.
Solution Approach 2:
The separate reset voltage lines enable preliminary resetting of components before active operation begins. This preliminary action ensures that both pixel circuits and light-emitting devices are fully reset and ready for immediate operation, reducing overall charging time.
Data Source
AI summary
Embodiments of the present disclosure provide an array substrate and related display panel and display device. The array substrate includes: a substrate; and a plurality of sub-pixels arranged on the substrate. At least one of the sub-pixels includes a pixel circuit, and each pixel circuit comprises a driving circuit, a voltage-stabilizing circuit, a driving reset circuit and a light-emitting reset circuit. The driving circuit is configured to provide a driving current to a light-emitting device. The voltage-stabilizing circuit is configured to make the control terminal of the driving circuit and the driving reset circuit. The driving reset circuit is configured to reset the control terminal of the driving circuit. The light-emitting reset circuit is configured to reset the light-emitting device. A driving reset voltage line is configured to provide a driving reset voltage. A light-emitting reset voltage line is configured to provide a light-emitting reset voltage.