Array Substrate Dual Reset Voltage Lines OLED
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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 limitations of a single reset voltage line, which affects the thorough resetting of pixel circuits and charging time of light-emitting devices.
Innovation Solution
The array substrate incorporates two reset voltage lines: a driving reset voltage line and a light-emitting reset voltage line, allowing for independent control of reset voltages to improve power consumption and response speed, and reducing charging time of light-emitting devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a single reset voltage line is used, then the device complexity is reduced, but the power consumption optimization and response speed are limited
Solution Approach 1:
The reset voltage line is segmented into two independent lines: a first reset voltage line for resetting the pixel circuit and a second reset voltage line for resetting the light-emitting device. This segmentation allows independent control of reset operations, enabling optimized power consumption and faster response speed without excessive complexity increase.
Solution Approach 2:
The reset voltage lines are configured to be selectively activated based on operational needs. The control circuit can dynamically choose to activate only the necessary reset line (pixel circuit reset or light-emitting device reset), making the system adaptable and efficient while managing complexity.
2Loss of time
If a single reset voltage line is used, then the structure is simpler, but the charging time of light-emitting devices is extended
Solution Approach 1:
By dividing the reset function into two separate voltage lines, the charging of the light-emitting device can be performed independently and simultaneously with pixel circuit resetting. This parallel operation significantly reduces the total charging time while maintaining a manageable structural complexity.
Solution Approach 2:
The first reset voltage line can preliminarily reset the pixel circuit before the second reset voltage line charges the light-emitting device. This preliminary action prepares the system in advance, allowing the subsequent charging operation to proceed more efficiently with reduced overall time.
3Reliability
If a single reset voltage line is used, then the control is simpler, but the pixel circuit resetting is not thorough
Solution Approach 1:
The reset function is segmented into two distinct operations: pixel circuit resetting via the first reset voltage line and light-emitting device resetting via the second reset voltage line. This ensures that each component receives dedicated reset voltage, achieving thorough resetting without the complexity of a single overloaded voltage line.
Solution Approach 2:
Different reset voltage lines are applied to different parts of the system based on their specific requirements. The first reset voltage line targets the pixel circuit with appropriate voltage characteristics, while the second reset voltage line targets the light-emitting device, ensuring each receives locally optimized reset conditions for complete resetting.
Data Source
AI summary
Embodiments of the present disclosure provide an array substrate and related display panel and display device. An array substrate, comprises: a substrate; a plurality of sub-pixels arranged in multiple rows and multiple columns provided on the substrate, at least one of the plurality of sub-pixels comprising pixel circuits, each of the pixel circuits comprising a driving circuit, a voltage stabilizing circuit, and a driving reset circuit, wherein the driving circuit is configured to provide a driving current to a light-emitting device, the voltage stabilizing circuit comprises a first voltage stabilizing circuit and a second voltage stabilizing circuit, the first voltage stabilizing circuit is configured to conduct a control terminal of the driving circuit with the driving reset circuit, the second voltage stabilizing circuit is configured to stabilize a voltage at the control terminal of the driving circuit, and the driving reset circuit is configured to reset the control terminal of the driving circuit.