Gate Drive Circuit Segmentation for Display Panel Signal Uniformity
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Solution Overview
Problem
In four-curved display panels, the integration of gate drive circuits between pixel units leads to uneven pixel drive signals due to the large area occupied by shift register units and signal lines, causing voltage drops and display unevenness.
Innovation Solution
A display panel design with a first gate drive circuit integrated in the transition region, featuring a first shift register unit and signal line group, and a second gate drive circuit in the border region, with a cascaded structure and optimized transistor count to minimize area and signal line length, ensuring even signal distribution across the panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the shift register unit and signal line group are arranged between two adjacent pixel units in the same row, then the gate drive circuit can be integrated in the transition region, but the large area occupied by these components causes the pixel drive circuit to be set at an offset position, leading to uneven pixel drive signals and voltage drops
Solution Approach 1:
The gate drive circuit is divided into two separate circuits: a first gate drive circuit integrated in the transition region and a second gate drive circuit integrated in the border region. This segmentation allows each circuit to serve specific pixel rows, reducing the area occupation in the transition region and eliminating the offset position problem that caused signal unevenness.
Solution Approach 2:
The patent introduces a vertical dimension by integrating the second gate drive circuit in the border region rather than only in the transition region. This dimensional expansion allows the gate drive signals to be distributed more evenly across the display panel, reducing voltage drops and improving signal uniformity.
2Ease of operation
If the first gate drive circuit includes a first shift register unit and first signal line group, then the gate drive function can be provided, but the large area occupied by these components reduces the available space for pixel units
Solution Approach 1:
The gate drive function is segmented between two circuits located in different regions. The first gate drive circuit in the transition region handles specific pixel rows, while the second gate drive circuit in the border region handles other pixel rows. This segmentation reduces the area occupation in the transition region, maximizing the available space for pixel units.
Solution Approach 2:
The second gate drive circuit acts as an intermediary that offloads the gate drive function from the transition region. By introducing this intermediate circuit in the border region, the patent reduces the area pressure in the transition region while maintaining complete gate drive functionality.
3Device complexity
If the pixel drive circuit is set at an offset position due to the large area of shift register unit and signal line group, then the gate drive circuit can be integrated, but this causes voltage drops and display unevenness
Solution Approach 1:
By segmenting the gate drive circuit into two separate circuits in different regions, the patent eliminates the offset position problem. Each circuit can be optimally positioned to serve its designated pixel rows, ensuring uniform signal distribution and preventing voltage drops that cause display unevenness.
Solution Approach 2:
The patent applies local quality by optimizing the placement and structure of gate drive circuits for different regions of the display panel. The first gate drive circuit is optimized for the transition region while the second gate drive circuit is optimized for the border region, ensuring each region receives appropriate drive signals for uniform display.
Data Source
AI summary
A display panel and a display device. The display panel comprises a transition region, and further comprises: a base substrate; multiple pixel units located on the side of the base substrate and integrated in the transition region; and a first gate drive circuit located on the side of the base substrate facing the pixel units, integrated in the transition region, and comprising a first shift register unit and a first signal line group. The first signal line group comprises a first signal line segment group used for providing a drive signal for the first shift register unit. The base substrate comprises multiple integration portions which are located between orthographic projections of two adjacent pixel units in the same row on the base substrate.