Inclined Scan Lines Minimize Dead Space in Display Devices
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Solution Overview
Problem
Existing display devices, such as organic light emitting devices, face challenges in minimizing dead space due to the arrangement of scan drivers, light emitting drivers, and data drivers, which increases the panel's dead space and affects efficiency.
Innovation Solution
The display device incorporates a substrate with a first pixel area and a second pixel area, where the second pixel area is located at the side of the first pixel area. The pixels in both areas are connected to scan lines, with the second scan lines being inclined relative to the first direction. This configuration minimizes dead space by optimizing the arrangement of pixels and drivers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If drivers (scan driver, light emitting driver, data driver) are mounted onto the panel, then the panel's dead space increases
Solution Approach 1:
The patent combines multiple separate driver functions (scan driver, light emitting driver, data driver) into an integrated driver structure that shares common wiring lines and control circuits. This merging reduces the total number of discrete driver components and their associated wiring, thereby minimizing dead space while maintaining ease of manufacture through standardized integration processes.
Solution Approach 2:
The driver structure is designed with multi-functional capabilities where a single driver unit performs multiple functions (scanning, light emission control, data transmission) that would traditionally require separate dedicated drivers. This universal approach reduces the overall driver area and eliminates redundant wiring lines, directly addressing the dead space problem.
2Ease of operation
If multiple wiring lines and transistors are used to drive each pixel's organic light emitting diode, then device complexity increases
Solution Approach 1:
The patent merges multiple wiring lines into shared common lines that serve multiple pixels simultaneously. Instead of dedicating separate wiring lines to each pixel, the design uses common scan lines, common light emitting control lines, and common data lines that are multiplexed across pixel rows or columns, significantly reducing wiring complexity while maintaining operational control.
Solution Approach 2:
The pixel array is segmented into manageable groups (rows or columns) that share common wiring infrastructure. This segmentation allows for systematic control where each group can be addressed independently through shared lines, reducing the overall number of wiring lines and transistors needed compared to fully independent pixel control.
Data Source
AI summary
A display device includes a substrate including a first pixel area and a second pixel area, wherein the second pixel area is located at a side of the first pixel area, first pixels located in the first pixel area and connected to first scan lines, and second pixels located in the second pixel area and connected to second scan lines, wherein the first pixels and the second pixels include pixel rows extending in a first direction, and at least one of the second scan lines is inclined with respect to the first direction.