Display Apparatus 2n Connection Wirings for Luminance Uniformity
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Solution Overview
Problem
Display apparatuses face challenges in maintaining uniform luminance across different regions due to overlapping gate/anode initialization periods and unequal initialization loads, leading to luminance deviations.
Innovation Solution
The display apparatus incorporates a configuration with 2n connection wirings in the non-display area, where each voltage wiring is connected to a specific connection wiring in a one-to-one manner, allowing for sequential gate/anode initialization in an MC n-clk mode, reducing overlapping initialization loads and ensuring uniform luminance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If gate/anode initialization periods overlap in conventional display apparatuses, then initialization can be performed simultaneously to save time, but luminance deviations occur due to unequal initialization loads
Solution Approach 1:
The display area is divided into multiple regions (first display area and second display area) with different numbers of pixels, and each region is assigned a dedicated connection wiring. This segmentation allows independent initialization control for each region, enabling simultaneous initialization without luminance deviations by balancing the initialization loads across different connection wirings.
Solution Approach 2:
Different connection wirings are assigned to different display areas with different pixel densities. Each connection wiring handles a specific local region, allowing the initialization process to be optimized locally for each region's specific requirements, thus achieving uniform luminance across the entire display while maintaining time efficiency.
2Device complexity
If multiple voltage wirings are connected to the same connection wiring, then the structure is simplified, but initialization loads become unequal causing luminance deviations
Solution Approach 1:
The connection wirings are segmented to correspond to specific display areas rather than having multiple voltage wirings share a single connection wiring. This one-to-one mapping ensures that each connection wiring handles a balanced initialization load from its associated display area, preventing luminance deviations while maintaining structural simplicity.
Solution Approach 2:
Each connection wiring is designed to handle the initialization function for its specific display area, creating a universal initialization mechanism that works consistently across different regions. This approach eliminates the need for complex differentiated wiring while ensuring uniform initialization performance.
3Manufacturing precision
If the display area is divided into regions with different pixel counts, then initialization loads can be balanced, but the wiring configuration becomes more complex
Solution Approach 1:
The display area is segmented into regions with different pixel counts that correspond to the number of voltage wirings in each region. This segmentation is paired with a simplified wiring configuration where each connection wiring is dedicated to one display area, balancing the initialization load without creating complex cross-region wiring connections.
Data Source
AI summary
A display apparatus includes a substrate including a transmitting area, a display area surrounding the transmitting area, a first non-display area disposed between the transmitting area and the display area, and a second non-display area surrounding the display area. A plurality of pixels is arranged in the display area. A set of 2n connection wirings (where n is a positive integer) is disposed in the first non-display area and each of the 2n connection wirings extends along at least a part of an edge of the transmitting area. Each of a plurality of voltage wirings extends in a first direction and is connected to at least some of pixels disposed in a common row from among the plurality of pixels. Each of the plurality of voltage wirings is connected to one of the 2n connection wirings.