Display Panel Driver Layout for Uniform Transmittance
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Solution Overview
Problem
Existing display panels often suffer from inconsistent overall transmittance due to variations in signal transmission paths and driver placements, leading to uneven light emission and reduced display quality.
Innovation Solution
The display panel design includes a substrate with drivers and drivers arranged centrally to minimize signal distortion, using opaque patterns and overlapping signal lines to ensure consistent transmittance across the panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If driver circuits are arranged in different regions of the substrate, then the display area can be maximized, but the overall transmittance becomes inconsistent due to varying signal transmission paths
Solution Approach 1:
The patent applies local quality by introducing opaque patterns specifically in regions where driver circuits are arranged, rather than making the entire substrate uniformly opaque. This allows the display area to remain maximized while locally compensating for transmittance variations caused by driver circuit placements. The opaque patterns are strategically positioned to balance the optical properties across different regions of the substrate.
Solution Approach 2:
The patent employs asymmetry by placing opaque patterns in specific asymmetric regions corresponding to driver circuit locations. Rather than symmetric or uniform distribution, the opaque patterns are positioned to counterbalance the asymmetric arrangement of driver circuits, thereby achieving overall transmittance consistency while maintaining maximum display area.
2Area of stationary object
If signal transmission paths are made longer to connect distant driver circuits, then the display area increases, but signal distortion increases
Solution Approach 1:
The patent resolves the signal transmission issue by transitioning from planar signal routing to three-dimensional routing through multiple layers. Signal lines are distributed across different substrate layers with vertical connections, allowing signals to reach distant driver circuits without excessive path lengths. This multi-layer approach enables both large display area and reliable signal transmission by utilizing the third dimension for signal routing.
Data Source
AI summary
Disclosed is a display panel including a substrate, a light-emitting unit, a pixel circuit, a scan driver, and an emission driver. The light-emitting unit is arranged on the substrate. The pixel circuit is arranged on the substrate. The pixel circuit includes a data input transistor, a driving transistor, and an emission transistor. The data input transistor is configured to receive a data signal according to a scan signal. The driving transistor is configured to provide a driving current based on the data signal. The emission transistor is configured to transfer the driving current to the light-emitting unit according to an emission signal. The scan driver is arranged on the substrate and is configured to output the scan signal. The emission driver is arranged on the substrate and is configured to output the emission signal. The pixel circuit is arranged between the scan driver and the emission driver.