Tiled Display Panel Layout With Hidden Scan Drivers at Panel Boundaries
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Tiled display devices experience deteriorated display quality due to changes in pixel gaps caused by configurational elements, such as drivers, at the boundary portions between connected display panels.
Innovation Solution
The display device incorporates a configuration where the first and second display panels have substrates with thinner regions, with scan drivers positioned to overlap each other in a perpendicular direction, ensuring that these drivers are not visible from the outside and maintaining consistent pixel gaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If scan drivers are positioned on the boundary portion between display panels, then the display device can be manufactured with standard configurations, but pixel gaps become inconsistent and display quality deteriorates
Solution Approach 1:
The scan driver is moved from the boundary portion (2D plane) to the overlapping region between substrates (3D space), utilizing the vertical dimension to resolve the conflict between ease of manufacture and pixel gap consistency
Solution Approach 2:
The scan driver is nested within the overlapping region of two substrates, where it is positioned between the first and second substrates in the vertical direction, making it invisible from the front while maintaining manufacturing simplicity
2Ease of manufacture
If substrates are made with uniform thickness, then manufacturing is simplified, but scan drivers become visible from the outside and display quality deteriorates
Solution Approach 1:
The substrate thickness is made non-uniform only in the overlapping region where the scan driver is positioned, while other regions maintain standard thickness, thus locally addressing the visibility issue without complicating overall manufacturing
Solution Approach 2:
The scan driver is concealed by utilizing the vertical dimension through varied substrate thickness, creating a stepped structure where the driver resides in a recessed area between substrates
3Productivity
If display panels are connected with standard configurations, then assembly is simplified, but pixel gap differences at boundaries increase and display quality deteriorates
Solution Approach 1:
The solution moves the scan driver to the vertical dimension (overlapping region) rather than keeping it on the 2D boundary, allowing standard panel assembly while achieving pixel gap uniformity through the 3D configuration
Data Source
AI summary
A display device includes a first display panel; and a second display panel, wherein the first display panel includes a first substrate including a first region and a second region that is thinner than the first region, a first scan driver positioned on one edge of the first region, a second scan driver positioned in the second region, and a plurality of pixels connected to the first scan driver and the second scan driver by a scan line, the second display panel includes a second substrate including a first region and a second region that is thinner than the first region, a first scan driver positioned on one edge of the first region, and a plurality of pixels connected to the first scan driver by a scan line.